© 2002 Caddock Electronics, Inc.

RHOPOINT COMPONENTS LTD

web: www.rhopointcomponents.com

e-mail: sales@rhopointcomponents.com

RHOPOINT COMPONENTS LTD

Holland Road, Hurst Green,

Oxted, Surrey, RH8 9AX

Phone: +44 (0) 1883 717988

Fax: +44 (0) 1883 712938

is a hybrid mountable version with copper pedestal terminals and an aluminum surface layer for wire

bonding. The back surface of these devices is metallized for solder attachment of the chip resistor to a heat sinking substrate.

Specifications:

Temperature Coefficient: TC referenced to

+25°C, ∆R taken at +150°C.

0.050 ohm to 0.20 ohm, 0 to +100 ppm/°C

0.010 ohm to 0.049 ohm, 0 to +200 ppm/°C

Inductance: Less than 5 nH typical

Load Life: 1000 hours at rated power, based

upon 150°C max. chip temperature,

∆

R ± (0.5% + 0.0005 ohm)

Momentary Overload: 1.5 times rated

power, for 5 seconds, ∆R ± (0.5% + 0.0005

ohm)

Operating Temperature: -55°C to +150°C

Measurement Note: All measurements

are taken using Kelvin connections per the

recommended connection locations.

Ordering

Information:

Ko signifies tape thickness and dimension

12mm

0.473”

Ao

Bo

7” dia.

(178 mm)

.512” arbor hole

(13mm)

Packaging information:

Style FC, flip chip resistors, are shipped with the bare

ceramic side up in the pocket, with the solderable pedestals

facing down.

Style WB, wire bondable resistors, are shipped with the

wire bondable pedestals facing up in the pocket.

The illustration shows the orientation of the CD2015 chip

resistors in the tape. The CD2520 resistors chips are ro-

tated 90° from what is shown in the illustration.

Style WB - Wire Bond Version

Note 3: Thermal Resistance - In High Power Applications where the circuit board material

provides high heat sinking benefits (such as IMS, Alumina, or other) the thermal resistance of

the chip resistor is useful to establish the maximum power capability of the chip resistor in the

application. The film temperature is measured at the center of the resistor element and the

solder pad temperature is measured at the soldered interface with the circuit board. Maximum

temperature of the chip resistor (at the center of chip) should not exceed 150°C through the

temperature range of the application.

WB Resistor mounting

Circuit board: IMS, Ceramic (Alumina) , or other.

Sense Wire

Current Wire

Film Temperature

Measuring Point

Solder pad, soldered

interface with circuit board.

Sense Wire

Current Wire

Location for Sense (Potential) Connection:

General Information for Type CD - Style FC and Style WB - Chip Resistors.

Solder attachment notes:

During soldering of the Type CD Resistor

the soldering temperature profile must not

cause the pedestal terminals of this device

to exceed 220°C.

Style FC - Flip Chip version resistors

have a bare ceramic back surface. The

recommended solder for flip chip solder

attachment is 62Sn / 36Pb / 2Ag.

Style WB - Wire Bond version resistors

have a metallized back surface for

soldering to a substrate or a heat sink.

The recommended solders is

62Sn / 36Pb / 2Ag.

Model

Resistance

Min.

Max.

Power Capability Information

Max. Chip

Temperature

Thermal Resistance

Film (J) to Solder Pad (C)

(see note 3)

Dimensions in inches and (millimeters)

A

B

D

C

Comments

8.33°C/Watt

150°C

.200 ±.012

(5.08 ±.30)

.150 ±.012

(3.81 ±.30)

.062 min.

(1.57 min.)

.061 ±.005

(1.55 ±.13)

Terminals have an Aluminum surface layer for

wire bonding. Aluminum wire to be used for bonding.

CD2015WBA

0.20 Ω

0.010 Ω

CD2520WBA

0.20 Ω

0.010 Ω

5.00°C/Watt

150°C

.250 ±.012

(6.35 ±.30)

.200 ±.012

(5.08 ±.30)

.078 min.

(1.98 min.)

.061 ±.005

(1.55 ±.13)

Terminals have an Aluminum surface layer for

wire bonding. Aluminum wire to be used for bonding.

Custom resistance values and non-standard tolerances

can be manufactured for high quantity applications.

Please contact Caddock Applications Engineering.

CD 2520 FC - 0.10 - 1%

Type CD

Physical Size

2015 = 0.200” x 0.150”

2520 = 0.250” x 0.200”

Style:

FC or WBA

Resistor Value (Ω)

See charts for availability

Tolerance:

±

1% 0.010 Ω and above.

Full reel quantities:

1000 pieces per reel for CD2015 and CD2520

Quantities of less than 250 will be shipped in tape without reel

and without tape leader at the option of Caddock.

Tape dimensions and materials will be consistent with EIA-481-1.

Reels will be marked with a label containing Caddock logo, part

number, resistor value, tolerance, packaging date, and quantity.

Dimensions in inches and (millimeters)

D

A

B

C

Carrier Tape and pocket dimensions:

Tape is 12mm Carrier Tape (8mm pitch)

0.189” (4.80mm)

Size 2015

0.209” (5.31mm)

0.087” (2.21mm)

0.271” (6.88mm)

Size 2520

0.216” (5.49mm)

0.066” (1.68mm)

Ao

Bo

Ko

Note: The sense connection for each

pedestal is positioned inboard of the current

connection (single or multiple current wires).

Tolerance CD2015WBA ±1% Standard.

CD2015WBA

Standard Resistance Values:

0.010 Ω

0.015 Ω

0.020 Ω

0.025 Ω

0.030 Ω

0.033 Ω

0.040 Ω

0.050 Ω

0.075 Ω

0.10 Ω

0.20 Ω

Tolerance CD2520WBA ±1% Standard.

CD2520WBA

Standard Resistance Values:

0.010 Ω

0.015 Ω

0.020 Ω

0.025 Ω

0.030 Ω

0.033 Ω

0.040 Ω

0.050 Ω

0.075 Ω

0.10 Ω

0.20 Ω

Page 2 of 2

Type CD Low Resistance Precision Chip Resistors

27.1 IL107.0802

Sales and Corporate Office

1717 Chicago Avenue

Riverside, California 92507-2364

Phone: (951) 788-1700

Fax: (951) 369-1151

Applications Engineering

17271 North Umpqua Hwy.

Roseburg, Oregon 97470-9422

Phone: (541) 496-0700

Fax: (541) 496-0408

e-mail: caddock@caddock.com • web: www.caddock.com

For Caddock Distributors listed by country see caddock.com/contact/dist.html

© 2004 Caddock Electronics, Inc.

CAD

K

DOC

Type MG Precision High Voltage Resistors

Specifications:

Resistance Tolerance:

Resistance Range

Tolerance

�

1%

�

1%, �0.5%, �0.25%, �0.1%

Standard

St'd with "-15" rating

Extended Range

�

1%

Resistance Range

Overload/Overvoltage, �R

N/A

0.5% max.

Standard

St'd with "-15" rating

Extended Range

0.8% max.

Models with low inductance construction are in shaded areas.

Models with Caddock's Non-Inductive Resistance Pattern are in non-shaded areas.

Standard and

St'd with "-15"

rating

�

80 ppm/�C from +25�C to +105�C,

-200 ppm/�C to +50 ppm/�C from

-15�C to +25�C.

Resistance

Range

�

80 ppm/�C from -15�C to +105�C,

referenced to +25�C.

TC Specifications

Extended

Range

Resistance Range

Load Life, �R

0.8% max.

0.5% max.

Standard

St'd with "-15" rating

Extended Range

0.8% max.

Dielect.

Strength

Max.

Continuous

Oper. Volt.

Watt-

age

Model

No.

A

B

C

Dimensions in inches and (millimeters)

Resistance

Standard

Max.

Extended

Max.

Min.

MG650

.313 �.020

(7.95 �.51)

.094 �.015

(2.39 �.38)

.025 �.002

(.64 �.05)

MG655

.313 �.030

(7.95 �.76)

.109 �.025

(2.77 �.64)

.025 �.002

(.64 �.05)

MG660

.500 �.030

(12.70 �.76)

.094 �.015

(2.39 �.38)

.025 �.002

(.64 �.05)

MG680

.750 �.030

(19.05 �.76)

.094 �.015

(2.39 �.38)

.025 �.002

(.64 �.05)

MG710

1.000 �.040

(25.40 �1.02)

.094 �.015

(2.39 �.38)

.025 �.002

(.64 �.05)

MG712

.400 �.060

(10.16 �.152)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG714

.562 �.060

(14.27 �1.52)

.150 �.030

(3.81 �.76)

.032 �.002

(.81 �.05)

MG715

.750 �.060

(19.05 �1.52)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG716

1.000 �.060

(25.40 �1.52)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG717

.710 �.050

(18.03 �1.27)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG720

1.500 �.080

(38.10 �2.03)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG721

1.000 �.050

(25.40 �1.27)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG725

2.000 �.080

(50.80 �2.03)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG730

1.500 �.080

(38.10 �2.03)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG731

1.000 �.060

(25.40 �1.52)

.315 �

.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG735

2.000 �.080

(50.80 �2.03)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG740

1.500 �.060

(38.10 �1.52)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG745

3.000 �.100

(76.20 �2.54)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG750

2.125 �.060

(53.98 �1.52)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG780

3.125 �.060

(79.38 �1.52)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG785

4.000 �.120

(101.60 �3.05)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG810

5.000 �.120

(127.00 �3.05)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG815

6.000 �.120

(152.40 �3.05)

.350 �.040

(8.89 �1.02)

.040 �.002

(1.02 �.05)

0.5

0.5

0.6

0.8

1.0

0.6

1.0

1.0

1.5

1.5

2.0

2.0

2.5

3.0

2.6

3.6

3.6

5.0

5.0

7.5

8.0

10.0

15.0

600

600

1,000

2,000

4,000

1,000

1,000

2,000

4,000

2,000

6,000

4,000

10,000

6,000

4,000

10,000

6,000

15,000

10,000

15,000

20,000

25,000

30,000

750

750

750

750

750

750

750

750

750

750

750

750

750

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

200 �

200 �

400 �

600 �

800 �

800 �

200 �

400 �

600 �

600 �

1 K

200 �

1.5 K

500 �

200 �

750 �

300 �

1 K

400 �

600 �

800 �

1 K

1 K

5 Meg

8 Meg

10 Meg

20 Meg

50 Meg

20 Meg

20 Meg

50 Meg

75 Meg

75 Meg

150 Meg

100 Meg

200 Meg

250 Meg

150 Meg

300 Meg

300 Meg

500 Meg

500 Meg

750 Meg

1,000 Meg

1,250 Meg

2,000 Meg

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

225 M

N/A

300 M

N/A

750 M

750 M

1,000 M

1,500 M

1,500 M

2,500 M

3,750 M

5,000 M

6,250 M

10,000 M

-15

Min.

6.5 Meg

N/A

N/A

N/A

N/A

N/A

N/A

26 Meg

70 Meg

17 Meg

N/A

51 Meg

N/A

77 Meg

40 Meg

178 Meg

64 Meg

288 Meg

128 Meg

192 Meg

320 Meg

400 Meg

384 Meg

Overload

Rating

Type 1

Type 1

Type 1

Type 1

Type 1

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Now with Extended Resistance Range to 10,000 Megohms and Additional Models

Temperature Coefficient as tight as 80 ppm/°C, Combined with Excellent Long-Term Stability and Precision Tolerances.

the Type MG Precision High Voltage Resistors' outstanding

combination of performance features:

48,000 volts ("-15" ratings).

voltages for all models and values, (except "-15" ratings).

80 ppm/°C in combination with resistance tolerances as

tight as ±0.1%.

per 1,000 hours in extended load life testing of standard

resistance range values.

This exceptional performance has been proven through

many years of use in equipment that demands the highest

reliability and stability, including TWT amplifiers, X-ray

systems, geophysical instruments, and medical electronics.

Preconditioning for Power and Voltage Ratings

All power ratings and maximum operating voltage ratings

are for continuous duty. These ratings are based on pre-

stress voltage levels applied during the manufacturing

process to provide for stable resistor performance even

under momentary overload conditions.

Maximum operating voltages 60% higher than the values

listed in the table may be specified by adding "-15" to the

model number (Example: MG750-15). Note that overload

and overvoltage ratings do not apply to the "-15" resistors.

Resistance ranges for "-15" resistors shown in the table are

from "-15 Min." to "Standard Max."

Non-Inductive Performance

Most models are manufactured with Caddock's

Non-Inductive Design which uses a serpentine resistive

pattern that provides for neighboring lines to carry current in

opposite directions, thereby achieving maximum cancellation

of flux fields over the entire length of the resistor. This

efficient non-inductive construction is accomplished without

derating of any performance advantages.

Insulation Resistance: 10,000 Megohms, min.

Overload/Overvoltage: 5 times rated power

with applied voltage not to exceed 1.5 times max-

imum continuous operating voltage for 5 seconds

.

Type 1: DC Voltage

Thermal Shock: Mil-Std-202, Method 107,

Cond. C, ΔR 0.25% max.

Moisture Resistance: Mil-Std-202, Method 106,

Δ

R 0.4% max.

Load Life: 1,000 hours at +125°C at rated

voltage, not to exceed rated power.

Solderable Leads

Encapsulation: High Temperature Silicone Conformal.

Temperature Coefficient:

Page 1 of 2

28_IL110.1004

Sales and Corporate Office

1717 Chicago Avenue

Riverside, California 92507-2364

Phone: (951) 788-1700

Fax: (951) 369-1151

Applications Engineering

17271 North Umpqua Hwy.

Roseburg, Oregon 97470-9422

Phone: (541) 496-0700

Fax: (541) 496-0408

e-mail: caddock@caddock.com • web: www.caddock.com

For Caddock Distributors listed by country see caddock.com/contact/dist.html

© 2004 Caddock Electronics, Inc.

CAD

K

DOC

Type MG Precision High Voltage Resistors

Specifications:

Resistance Tolerance:

Resistance Range

Tolerance

�

1%

�

1%, �0.5%, �0.25%, �0.1%

Standard

St'd with "-15" rating

Extended Range

�

1%

Resistance Range

Overload/Overvoltage, �R

N/A

0.5% max.

Standard

St'd with "-15" rating

Extended Range

0.8% max.

Models with low inductance construction are in shaded areas.

Models with Caddock's Non-Inductive Resistance Pattern are in non-shaded areas.

Standard and

St'd with "-15"

rating

�

80 ppm/�C from +25�C to +105�C,

-200 ppm/�C to +50 ppm/�C from

-15�C to +25�C.

Resistance

Range

�

80 ppm/�C from -15�C to +105�C,

referenced to +25�C.

TC Specifications

Extended

Range

Resistance Range

Load Life, �R

0.8% max.

0.5% max.

Standard

St'd with "-15" rating

Extended Range

0.8% max.

Dielect.

Strength

Max.

Continuous

Oper. Volt.

Watt-

age

Model

No.

A

B

C

Dimensions in inches and (millimeters)

Resistance

Standard

Max.

Extended

Max.

Min.

MG650

.313 �.020

(7.95 �.51)

.094 �.015

(2.39 �.38)

.025 �.002

(.64 �.05)

MG655

.313 �.030

(7.95 �.76)

.109 �.025

(2.77 �.64)

.025 �.002

(.64 �.05)

MG660

.500 �.030

(12.70 �.76)

.094 �.015

(2.39 �.38)

.025 �.002

(.64 �.05)

MG680

.750 �.030

(19.05 �.76)

.094 �.015

(2.39 �.38)

.025 �.002

(.64 �.05)

MG710

1.000 �.040

(25.40 �1.02)

.094 �.015

(2.39 �.38)

.025 �.002

(.64 �.05)

MG712

.400 �.060

(10.16 �.152)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG714

.562 �.060

(14.27 �1.52)

.150 �.030

(3.81 �.76)

.032 �.002

(.81 �.05)

MG715

.750 �.060

(19.05 �1.52)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG716

1.000 �.060

(25.40 �1.52)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG717

.710 �.050

(18.03 �1.27)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG720

1.500 �.080

(38.10 �2.03)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG721

1.000 �.050

(25.40 �1.27)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG725

2.000 �.080

(50.80 �2.03)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG730

1.500 �.080

(38.10 �2.03)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG731

1.000 �.060

(25.40 �1.52)

.315 �

.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG735

2.000 �.080

(50.80 �2.03)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG740

1.500 �.060

(38.10 �1.52)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG745

3.000 �.100

(76.20 �2.54)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG750

2.125 �.060

(53.98 �1.52)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG780

3.125 �.060

(79.38 �1.52)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG785

4.000 �.120

(101.60 �3.05)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG810

5.000 �.120

(127.00 �3.05)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG815

6.000 �.120

(152.40 �3.05)

.350 �.040

(8.89 �1.02)

.040 �.002

(1.02 �.05)

0.5

0.5

0.6

0.8

1.0

0.6

1.0

1.0

1.5

1.5

2.0

2.0

2.5

3.0

2.6

3.6

3.6

5.0

5.0

7.5

8.0

10.0

15.0

600

600

1,000

2,000

4,000

1,000

1,000

2,000

4,000

2,000

6,000

4,000

10,000

6,000

4,000

10,000

6,000

15,000

10,000

15,000

20,000

25,000

30,000

750

750

750

750

750

750

750

750

750

750

750

750

750

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

200 �

200 �

400 �

600 �

800 �

800 �

200 �

400 �

600 �

600 �

1 K

200 �

1.5 K

500 �

200 �

750 �

300 �

1 K

400 �

600 �

800 �

1 K

1 K

5 Meg

8 Meg

10 Meg

20 Meg

50 Meg

20 Meg

20 Meg

50 Meg

75 Meg

75 Meg

150 Meg

100 Meg

200 Meg

250 Meg

150 Meg

300 Meg

300 Meg

500 Meg

500 Meg

750 Meg

1,000 Meg

1,250 Meg

2,000 Meg

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

225 M

N/A

300 M

N/A

750 M

750 M

1,000 M

1,500 M

1,500 M

2,500 M

3,750 M

5,000 M

6,250 M

10,000 M

-15

Min.

6.5 Meg

N/A

N/A

N/A

N/A

N/A

N/A

26 Meg

70 Meg

17 Meg

N/A

51 Meg

N/A

77 Meg

40 Meg

178 Meg

64 Meg

288 Meg

128 Meg

192 Meg

320 Meg

400 Meg

384 Meg

Overload

Rating

Type 1

Type 1

Type 1

Type 1

Type 1

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Now with Extended Resistance Range to 10,000 Megohms and Additional Models

Temperature Coefficient as tight as 80 ppm/°C, Combined with Excellent Long-Term Stability and Precision Tolerances.

the Type MG Precision High Voltage Resistors' outstanding

combination of performance features:

48,000 volts ("-15" ratings).

voltages for all models and values, (except "-15" ratings).

80 ppm/°C in combination with resistance tolerances as

tight as ±0.1%.

per 1,000 hours in extended load life testing of standard

resistance range values.

This exceptional performance has been proven through

many years of use in equipment that demands the highest

reliability and stability, including TWT amplifiers, X-ray

systems, geophysical instruments, and medical electronics.

Preconditioning for Power and Voltage Ratings

All power ratings and maximum operating voltage ratings

are for continuous duty. These ratings are based on pre-

stress voltage levels applied during the manufacturing

process to provide for stable resistor performance even

under momentary overload conditions.

Maximum operating voltages 60% higher than the values

listed in the table may be specified by adding "-15" to the

model number (Example: MG750-15). Note that overload

and overvoltage ratings do not apply to the "-15" resistors.

Resistance ranges for "-15" resistors shown in the table are

from "-15 Min." to "Standard Max."

Non-Inductive Performance

Most models are manufactured with Caddock's

Non-Inductive Design which uses a serpentine resistive

pattern that provides for neighboring lines to carry current in

opposite directions, thereby achieving maximum cancellation

of flux fields over the entire length of the resistor. This

efficient non-inductive construction is accomplished without

derating of any performance advantages.

Insulation Resistance: 10,000 Megohms, min.

Overload/Overvoltage: 5 times rated power

with applied voltage not to exceed 1.5 times max-

imum continuous operating voltage for 5 seconds

.

Type 1: DC Voltage

Thermal Shock: Mil-Std-202, Method 107,

Cond. C, ΔR 0.25% max.

Moisture Resistance: Mil-Std-202, Method 106,

Δ

R 0.4% max.

Load Life: 1,000 hours at +125°C at rated

voltage, not to exceed rated power.

Solderable Leads

Encapsulation: High Temperature Silicone Conformal.

Temperature Coefficient:

Page 1 of 2

28_IL110.1004

Sales and Corporate Office

1717 Chicago Avenue

Riverside, California 92507-2364

Phone: (951) 788-1700

Fax: (951) 369-1151

Applications Engineering

17271 North Umpqua Hwy.

Roseburg, Oregon 97470-9422

Phone: (541) 496-0700

Fax: (541) 496-0408

e-mail: caddock@caddock.com • web: www.caddock.com

For Caddock Distributors listed by country see caddock.com/contact/dist.html

© 2004 Caddock Electronics, Inc.

CAD

K

DOC

Type MG Precision High Voltage Resistors

Specifications:

Resistance Tolerance:

Resistance Range

Tolerance

�

1%

�

1%, �0.5%, �0.25%, �0.1%

Standard

St'd with "-15" rating

Extended Range

�

1%

Resistance Range

Overload/Overvoltage, �R

N/A

0.5% max.

Standard

St'd with "-15" rating

Extended Range

0.8% max.

Models with low inductance construction are in shaded areas.

Models with Caddock's Non-Inductive Resistance Pattern are in non-shaded areas.

Standard and

St'd with "-15"

rating

�

80 ppm/�C from +25�C to +105�C,

-200 ppm/�C to +50 ppm/�C from

-15�C to +25�C.

Resistance

Range

�

80 ppm/�C from -15�C to +105�C,

referenced to +25�C.

TC Specifications

Extended

Range

Resistance Range

Load Life, �R

0.8% max.

0.5% max.

Standard

St'd with "-15" rating

Extended Range

0.8% max.

Dielect.

Strength

Max.

Continuous

Oper. Volt.

Watt-

age

Model

No.

A

B

C

Dimensions in inches and (millimeters)

Resistance

Standard

Max.

Extended

Max.

Min.

MG650

.313 �.020

(7.95 �.51)

.094 �.015

(2.39 �.38)

.025 �.002

(.64 �.05)

MG655

.313 �.030

(7.95 �.76)

.109 �.025

(2.77 �.64)

.025 �.002

(.64 �.05)

MG660

.500 �.030

(12.70 �.76)

.094 �.015

(2.39 �.38)

.025 �.002

(.64 �.05)

MG680

.750 �.030

(19.05 �.76)

.094 �.015

(2.39 �.38)

.025 �.002

(.64 �.05)

MG710

1.000 �.040

(25.40 �1.02)

.094 �.015

(2.39 �.38)

.025 �.002

(.64 �.05)

MG712

.400 �.060

(10.16 �.152)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG714

.562 �.060

(14.27 �1.52)

.150 �.030

(3.81 �.76)

.032 �.002

(.81 �.05)

MG715

.750 �.060

(19.05 �1.52)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG716

1.000 �.060

(25.40 �1.52)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG717

.710 �.050

(18.03 �1.27)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG720

1.500 �.080

(38.10 �2.03)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG721

1.000 �.050

(25.40 �1.27)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG725

2.000 �.080

(50.80 �2.03)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG730

1.500 �.080

(38.10 �2.03)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG731

1.000 �.060

(25.40 �1.52)

.315 �

.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG735

2.000 �.080

(50.80 �2.03)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG740

1.500 �.060

(38.10 �1.52)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG745

3.000 �.100

(76.20 �2.54)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG750

2.125 �.060

(53.98 �1.52)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG780

3.125 �.060

(79.38 �1.52)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG785

4.000 �.120

(101.60 �3.05)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG810

5.000 �.120

(127.00 �3.05)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG815

6.000 �.120

(152.40 �3.05)

.350 �.040

(8.89 �1.02)

.040 �.002

(1.02 �.05)

0.5

0.5

0.6

0.8

1.0

0.6

1.0

1.0

1.5

1.5

2.0

2.0

2.5

3.0

2.6

3.6

3.6

5.0

5.0

7.5

8.0

10.0

15.0

600

600

1,000

2,000

4,000

1,000

1,000

2,000

4,000

2,000

6,000

4,000

10,000

6,000

4,000

10,000

6,000

15,000

10,000

15,000

20,000

25,000

30,000

750

750

750

750

750

750

750

750

750

750

750

750

750

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

200 �

200 �

400 �

600 �

800 �

800 �

200 �

400 �

600 �

600 �

1 K

200 �

1.5 K

500 �

200 �

750 �

300 �

1 K

400 �

600 �

800 �

1 K

1 K

5 Meg

8 Meg

10 Meg

20 Meg

50 Meg

20 Meg

20 Meg

50 Meg

75 Meg

75 Meg

150 Meg

100 Meg

200 Meg

250 Meg

150 Meg

300 Meg

300 Meg

500 Meg

500 Meg

750 Meg

1,000 Meg

1,250 Meg

2,000 Meg

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

225 M

N/A

300 M

N/A

750 M

750 M

1,000 M

1,500 M

1,500 M

2,500 M

3,750 M

5,000 M

6,250 M

10,000 M

-15

Min.

6.5 Meg

N/A

N/A

N/A

N/A

N/A

N/A

26 Meg

70 Meg

17 Meg

N/A

51 Meg

N/A

77 Meg

40 Meg

178 Meg

64 Meg

288 Meg

128 Meg

192 Meg

320 Meg

400 Meg

384 Meg

Overload

Rating

Type 1

Type 1

Type 1

Type 1

Type 1

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Now with Extended Resistance Range to 10,000 Megohms and Additional Models

Temperature Coefficient as tight as 80 ppm/°C, Combined with Excellent Long-Term Stability and Precision Tolerances.

the Type MG Precision High Voltage Resistors' outstanding

combination of performance features:

48,000 volts ("-15" ratings).

voltages for all models and values, (except "-15" ratings).

80 ppm/°C in combination with resistance tolerances as

tight as ±0.1%.

per 1,000 hours in extended load life testing of standard

resistance range values.

This exceptional performance has been proven through

many years of use in equipment that demands the highest

reliability and stability, including TWT amplifiers, X-ray

systems, geophysical instruments, and medical electronics.

Preconditioning for Power and Voltage Ratings

All power ratings and maximum operating voltage ratings

are for continuous duty. These ratings are based on pre-

stress voltage levels applied during the manufacturing

process to provide for stable resistor performance even

under momentary overload conditions.

Maximum operating voltages 60% higher than the values

listed in the table may be specified by adding "-15" to the

model number (Example: MG750-15). Note that overload

and overvoltage ratings do not apply to the "-15" resistors.

Resistance ranges for "-15" resistors shown in the table are

from "-15 Min." to "Standard Max."

Non-Inductive Performance

Most models are manufactured with Caddock's

Non-Inductive Design which uses a serpentine resistive

pattern that provides for neighboring lines to carry current in

opposite directions, thereby achieving maximum cancellation

of flux fields over the entire length of the resistor. This

efficient non-inductive construction is accomplished without

derating of any performance advantages.

Insulation Resistance: 10,000 Megohms, min.

Overload/Overvoltage: 5 times rated power

with applied voltage not to exceed 1.5 times max-

imum continuous operating voltage for 5 seconds

.

Type 1: DC Voltage

Thermal Shock: Mil-Std-202, Method 107,

Cond. C, ΔR 0.25% max.

Moisture Resistance: Mil-Std-202, Method 106,

Δ

R 0.4% max.

Load Life: 1,000 hours at +125°C at rated

voltage, not to exceed rated power.

Solderable Leads

Encapsulation: High Temperature Silicone Conformal.

Temperature Coefficient:

Page 1 of 2

28_IL110.1004

UK & Ireland

Distributors

Tel: +44 (0) 870 608 1188

Sales and Corporate Office

1717 Chicago Avenue

Riverside, California 92507-2364

Phone: (951) 788-1700

Fax: (951) 369-1151

Applications Engineering

17271 North Umpqua Hwy.

Roseburg, Oregon 97470-9422

Phone: (541) 496-0700

Fax: (541) 496-0408

e-mail: caddock@caddock.com • web: www.caddock.com

For Caddock Distributors listed by country see caddock.com/contact/dist.html

© 2004 Caddock Electronics, Inc.

CAD

K

DOC

Type MG Precision High Voltage Resistors

Specifications:

Resistance Tolerance:

Resistance Range

Tolerance

�

1%

�

1%, �0.5%, �0.25%, �0.1%

Standard

St'd with "-15" rating

Extended Range

�

1%

Resistance Range

Overload/Overvoltage, �R

N/A

0.5% max.

Standard

St'd with "-15" rating

Extended Range

0.8% max.

Models with low inductance construction are in shaded areas.

Models with Caddock's Non-Inductive Resistance Pattern are in non-shaded areas.

Standard and

St'd with "-15"

rating

�

80 ppm/�C from +25�C to +105�C,

-200 ppm/�C to +50 ppm/�C from

-15�C to +25�C.

Resistance

Range

�

80 ppm/�C from -15�C to +105�C,

referenced to +25�C.

TC Specifications

Extended

Range

Resistance Range

Load Life, �R

0.8% max.

0.5% max.

Standard

St'd with "-15" rating

Extended Range

0.8% max.

Dielect.

Strength

Max.

Continuous

Oper. Volt.

Watt-

age

Model

No.

A

B

C

Dimensions in inches and (millimeters)

Resistance

Standard

Max.

Extended

Max.

Min.

MG650

.313 �.020

(7.95 �.51)

.094 �.015

(2.39 �.38)

.025 �.002

(.64 �.05)

MG655

.313 �.030

(7.95 �.76)

.109 �.025

(2.77 �.64)

.025 �.002

(.64 �.05)

MG660

.500 �.030

(12.70 �.76)

.094 �.015

(2.39 �.38)

.025 �.002

(.64 �.05)

MG680

.750 �.030

(19.05 �.76)

.094 �.015

(2.39 �.38)

.025 �.002

(.64 �.05)

MG710

1.000 �.040

(25.40 �1.02)

.094 �.015

(2.39 �.38)

.025 �.002

(.64 �.05)

MG712

.400 �.060

(10.16 �.152)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG714

.562 �.060

(14.27 �1.52)

.150 �.030

(3.81 �.76)

.032 �.002

(.81 �.05)

MG715

.750 �.060

(19.05 �1.52)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG716

1.000 �.060

(25.40 �1.52)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG717

.710 �.050

(18.03 �1.27)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG720

1.500 �.080

(38.10 �2.03)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG721

1.000 �.050

(25.40 �1.27)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG725

2.000 �.080

(50.80 �2.03)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG730

1.500 �.080

(38.10 �2.03)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG731

1.000 �.060

(25.40 �1.52)

.315 �

.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG735

2.000 �.080

(50.80 �2.03)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG740

1.500 �.060

(38.10 �1.52)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG745

3.000 �.100

(76.20 �2.54)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG750

2.125 �.060

(53.98 �1.52)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG780

3.125 �.060

(79.38 �1.52)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG785

4.000 �.120

(101.60 �3.05)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG810

5.000 �.120

(127.00 �3.05)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG815

6.000 �.120

(152.40 �3.05)

.350 �.040

(8.89 �1.02)

.040 �.002

(1.02 �.05)

0.5

0.5

0.6

0.8

1.0

0.6

1.0

1.0

1.5

1.5

2.0

2.0

2.5

3.0

2.6

3.6

3.6

5.0

5.0

7.5

8.0

10.0

15.0

600

600

1,000

2,000

4,000

1,000

1,000

2,000

4,000

2,000

6,000

4,000

10,000

6,000

4,000

10,000

6,000

15,000

10,000

15,000

20,000

25,000

30,000

750

750

750

750

750

750

750

750

750

750

750

750

750

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

200 �

200 �

400 �

600 �

800 �

800 �

200 �

400 �

600 �

600 �

1 K

200 �

1.5 K

500 �

200 �

750 �

300 �

1 K

400 �

600 �

800 �

1 K

1 K

5 Meg

8 Meg

10 Meg

20 Meg

50 Meg

20 Meg

20 Meg

50 Meg

75 Meg

75 Meg

150 Meg

100 Meg

200 Meg

250 Meg

150 Meg

300 Meg

300 Meg

500 Meg

500 Meg

750 Meg

1,000 Meg

1,250 Meg

2,000 Meg

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

225 M

N/A

300 M

N/A

750 M

750 M

1,000 M

1,500 M

1,500 M

2,500 M

3,750 M

5,000 M

6,250 M

10,000 M

-15

Min.

6.5 Meg

N/A

N/A

N/A

N/A

N/A

N/A

26 Meg

70 Meg

17 Meg

N/A

51 Meg

N/A

77 Meg

40 Meg

178 Meg

64 Meg

288 Meg

128 Meg

192 Meg

320 Meg

400 Meg

384 Meg

Overload

Rating

Type 1

Type 1

Type 1

Type 1

Type 1

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Now with Extended Resistance Range to 10,000 Megohms and Additional Models

Temperature Coefficient as tight as 80 ppm/°C, Combined with Excellent Long-Term Stability and Precision Tolerances.

the Type MG Precision High Voltage Resistors' outstanding

combination of performance features:

48,000 volts ("-15" ratings).

voltages for all models and values, (except "-15" ratings).

80 ppm/°C in combination with resistance tolerances as

tight as ±0.1%.

per 1,000 hours in extended load life testing of standard

resistance range values.

This exceptional performance has been proven through

many years of use in equipment that demands the highest

reliability and stability, including TWT amplifiers, X-ray

systems, geophysical instruments, and medical electronics.

Preconditioning for Power and Voltage Ratings

All power ratings and maximum operating voltage ratings

are for continuous duty. These ratings are based on pre-

stress voltage levels applied during the manufacturing

process to provide for stable resistor performance even

under momentary overload conditions.

Maximum operating voltages 60% higher than the values

listed in the table may be specified by adding "-15" to the

model number (Example: MG750-15). Note that overload

and overvoltage ratings do not apply to the "-15" resistors.

Resistance ranges for "-15" resistors shown in the table are

from "-15 Min." to "Standard Max."

Non-Inductive Performance

Most models are manufactured with Caddock's

Non-Inductive Design which uses a serpentine resistive

pattern that provides for neighboring lines to carry current in

opposite directions, thereby achieving maximum cancellation

of flux fields over the entire length of the resistor. This

efficient non-inductive construction is accomplished without

derating of any performance advantages.

Insulation Resistance: 10,000 Megohms, min.

Overload/Overvoltage: 5 times rated power

with applied voltage not to exceed 1.5 times max-

imum continuous operating voltage for 5 seconds

.

Type 1: DC Voltage

Thermal Shock: Mil-Std-202, Method 107,

Cond. C, ΔR 0.25% max.

Moisture Resistance: Mil-Std-202, Method 106,

Δ

R 0.4% max.

Load Life: 1,000 hours at +125°C at rated

voltage, not to exceed rated power.

Solderable Leads

Encapsulation: High Temperature Silicone Conformal.

Temperature Coefficient:

Page 1 of 2

28_IL110.1004

RHOPOINT COMPONENTS LTD.

Holland Road

Hurst Green

Oxted, Surrey, RH8 9AX

Tel: +44 (0)1883 717988

Fax: +44 (0)1883 712938

e-mail: sales@rhopointcomponents.com

web: www.rhopointcomponents.com

RHOPOINT COMPONENTS LTD.

IL-110.019

C

B

A

1.500 ± .125

(38.10 ± 3.18)

RATED POWER OR

RATED VOLTAGE, %

AMBIENT TEMPERATURE, °C

100

80

60

40

20

0

25

75

125

175

225 275

For immediate engineering assistance in developing Low Ratio TC matched

high voltage resistor sets, call or write our Applications Engineering and we will

be pleased to offer the best solution from our high voltage resistor product

capabilities.

Derating Curve:

DIMENSIONS IN INCHES AND (MILLIMETERS)

Design Assistance in Developing High Voltage Resistor Sets with

Low TC Tracking.

MG750 -100M - 1%

Model Number:

Resistor Value:

Tolerance

MG680

MG712

MG714

MG715

MG725

MG720

MG660

MG716

MG721

MG745

MG810

MG815

MG735

MG730

MG717

MG785

MG731

MG740

Most models are available with

Caddock's Non-inductive Serpentine Pattern

MG650

MG710

MG750

MG780

Certain products shown in this catalog are covered by one or more patents, there are also patents pending.

with Caddock's exclusive design

MG655

Type MG Precision High Voltage Resistors

Page 2 of 2

RHOPOINT COMPONENTS LTD.

Holland Road

Hurst Green

Oxted, Surrey, RH8 9AX

Tel: +44 (0)1883 717988

Fax: +44 (0)1883 712938

e-mail: sales@rhopointcomponents.com

web: www.rhopointcomponents.com

RHOPOINT COMPONENTS LTD.

IL-110.019

C

B

A

1.500 ± .125

(38.10 ± 3.18)

RATED POWER OR

RATED VOLTAGE, %

AMBIENT TEMPERATURE, °C

100

80

60

40

20

0

25

75

125

175

225 275

For immediate engineering assistance in developing Low Ratio TC matched

high voltage resistor sets, call or write our Applications Engineering and we will

be pleased to offer the best solution from our high voltage resistor product

capabilities.

Derating Curve:

DIMENSIONS IN INCHES AND (MILLIMETERS)

Design Assistance in Developing High Voltage Resistor Sets with

Low TC Tracking.

MG750 -100M - 1%

Model Number:

Resistor Value:

Tolerance

MG680

MG712

MG714

MG715

MG725

MG720

MG660

MG716

MG721

MG745

MG810

MG815

MG735

MG730

MG717

MG785

MG731

MG740

Most models are available with

Caddock's Non-inductive Serpentine Pattern

MG650

MG710

MG750

MG780

Certain products shown in this catalog are covered by one or more patents, there are also patents pending.

with Caddock's exclusive design

MG655

Type MG Precision High Voltage Resistors

Page 2 of 2

© 2002 Caddock Electronics, Inc.

RHOPOINT COMPONENTS LTD

web: www.rhopointcomponents.com

e-mail: sales@rhopointcomponents.com

RHOPOINT COMPONENTS LTD

Holland Road, Hurst Green,

Oxted, Surrey, RH8 9AX

Phone: +44 (0) 1883 717988

Fax: +44 (0) 1883 712938

CD2015FC Standard Resistance Values:

Tolerance CD2015FC ±1% Standard.

CD2520FC Standard Resistance Values:

0.010 Ω

0.015 Ω

0.020 Ω

0.025 Ω

Tolerance CD2520FC ±1% Standard.

0.030 Ω

0.033 Ω

0.040 Ω

0.050 Ω

0.075 Ω

0.10 Ω

0.20 Ω

Custom resistance values and non-standard tolerances

can be manufactured for high quantity applications.

Please contact Caddock Applications Engineering.

Recommended Circuit Board Layout

(current and sense connections):

Fig. 1A: Recommended Kelvin layout.

0.20 Ω

0.010 Ω

Model

Resistance

Min.

Max.

Power Capability Information

CD2015FC

CD2520FC

0.20 Ω

0.010 Ω

150°C

1.0 Watt

Max. Chip

Temperature

General Applications High Power Applications

Thermal Resistance -

Film (J) to Solder Pad (C)

(see note 2)

12.0°C/Watt

Power Rating

at 70° C

(see note 1)

9.0°C/Watt

150°C

Dimensions in inches and (millimeters)

.200 ±.012

(5.08 ±.30

A

B

D

.150 ±.012

(3.81 ±.30)

.062 min.

(1.57 min.)

C

.063 ±.006

(1.60 ±.15)

.250 ±.012

(6.35 ±.30)

.200 ±.012

(5.08 ±.30)

.078 min.

(1.98 min.)

.063 ±.006

(1.60 ±.15

Comments

Solderable Pedestal

Solderable Pedestal

1.5 Watts

Type CD Low Resistance Precision Chip Resistors

Note 1: General Applications - The power rating for

general applications is based upon 0.5 sq. in. (300

connected to each end of the resistor. Maximum chip

temperature is 150°C. Use Derating Curve to derate

appropriately for the maximum ambient temperature

and for the temperature limitations of the adjacent

materials.

Note 2: Thermal Resistance - In High Power Applications where the circuit board material

provides high heat sinking benefits (such as IMS, Alumina, or other) the thermal resistance of

the chip resistor is useful to establish the maximum power capability of the chip resistor in the

application. The film temperature is measured at the center of the resistor element and solder

pad temperature at the center of the solderable pedestal (point X in the recommended circuit

layouts shown below). Maximum temperature of the chip resistor (at the center of chip)

should not exceed 150°C through the temperature range of the application

.

Style FC Derating Curve For General Application

AMBIENT TEMPERATURE, C

o

100

80

60

40

20

0

25

100

150

70

C = Current connection

S = Sense connection

Note: Actual width of current trace is based on

magnitudeofcurrent. Pointof connectionshould

be in the area shown.

for Current Sense in Hybrid and SMT Applications

0.010 Ω

0.015 Ω

0.020 Ω

0.025 Ω

0.030 Ω

0.033 Ω

0.040 Ω

0.050 Ω

0.075 Ω

0.10 Ω

0.20 Ω

S S

X

X

C

C

Type CD Low Resistance Precision Chip Resistors utilize the proven

range in this family. The special performance features of the Type CD

Low Resistance Precision Film Resistor include:

•

Style FC - Flip Chip version for surface mount applications.

Style WB - Wire Bond version for hybrid applications with metallized

back surface for solder down heat sinking of the chip, includes

bondable terminatipedestals to receive aluminum wire bonds

• Resistance as low as 0.010 ohm at ±1%.

• Pedestal terminals in this design provide an ultra low resistance

connection pad which maintains the precision 0.010Ω ±1% at the

point of customer Kelvin connection to the resistor chip. The pedestal

terminal with its copper core also provides heat spreading which

enhances the high power handling capability.

• Thermal resistance is provided to optimize high power designs when

utilizing higher thermal conductivity circuit board substrates such as IMS or Alumina.

• High pulse handling and overload capability.

• Low inductance provides excellent high frequency and pulse response.

Page 1 of 2

27.1 IL107.0802

© 2002 Caddock Electronics, Inc.

RHOPOINT COMPONENTS LTD

web: www.rhopointcomponents.com

e-mail: sales@rhopointcomponents.com

RHOPOINT COMPONENTS LTD

Holland Road, Hurst Green,

Oxted, Surrey, RH8 9AX

Phone: +44 (0) 1883 717988

Fax: +44 (0) 1883 712938

is a hybrid mountable version with copper pedestal terminals and an aluminum surface layer for wire

bonding. The back surface of these devices is metallized for solder attachment of the chip resistor to a heat sinking substrate.

Specifications:

Temperature Coefficient: TC referenced to

+25°C, ∆R taken at +150°C.

0.050 ohm to 0.20 ohm, 0 to +100 ppm/°C

0.010 ohm to 0.049 ohm, 0 to +200 ppm/°C

Inductance: Less than 5 nH typical

Load Life: 1000 hours at rated power, based

upon 150°C max. chip temperature,

∆

R ± (0.5% + 0.0005 ohm)

Momentary Overload: 1.5 times rated

power, for 5 seconds, ∆R ± (0.5% + 0.0005

ohm)

Operating Temperature: -55°C to +150°C

Measurement Note: All measurements

are taken using Kelvin connections per the

recommended connection locations.

Ordering

Information:

Ko signifies tape thickness and dimension

12mm

0.473”

Ao

Bo

7” dia.

(178 mm)

.512” arbor hole

(13mm)

Packaging information:

Style FC, flip chip resistors, are shipped with the bare

ceramic side up in the pocket, with the solderable pedestals

facing down.

Style WB, wire bondable resistors, are shipped with the

wire bondable pedestals facing up in the pocket.

The illustration shows the orientation of the CD2015 chip

resistors in the tape. The CD2520 resistors chips are ro-

tated 90° from what is shown in the illustration.

Style WB - Wire Bond Version

Note 3: Thermal Resistance - In High Power Applications where the circuit board material

provides high heat sinking benefits (such as IMS, Alumina, or other) the thermal resistance of

the chip resistor is useful to establish the maximum power capability of the chip resistor in the

application. The film temperature is measured at the center of the resistor element and the

solder pad temperature is measured at the soldered interface with the circuit board. Maximum

temperature of the chip resistor (at the center of chip) should not exceed 150°C through the

temperature range of the application.

WB Resistor mounting

Circuit board: IMS, Ceramic (Alumina) , or other.

Sense Wire

Current Wire

Film Temperature

Measuring Point

Solder pad, soldered

interface with circuit board.

Sense Wire

Current Wire

Location for Sense (Potential) Connection:

General Information for Type CD - Style FC and Style WB - Chip Resistors.

Solder attachment notes:

During soldering of the Type CD Resistor

the soldering temperature profile must not

cause the pedestal terminals of this device

to exceed 220°C.

Style FC - Flip Chip version resistors

have a bare ceramic back surface. The

recommended solder for flip chip solder

attachment is 62Sn / 36Pb / 2Ag.

Style WB - Wire Bond version resistors

have a metallized back surface for

soldering to a substrate or a heat sink.

The recommended solders is

62Sn / 36Pb / 2Ag.

Model

Resistance

Min.

Max.

Power Capability Information

Max. Chip

Temperature

Thermal Resistance

Film (J) to Solder Pad (C)

(see note 3)

Dimensions in inches and (millimeters)

A

B

D

C

Comments

8.33°C/Watt

150°C

.200 ±.012

(5.08 ±.30)

.150 ±.012

(3.81 ±.30)

.062 min.

(1.57 min.)

.061 ±.005

(1.55 ±.13)

Terminals have an Aluminum surface layer for

wire bonding. Aluminum wire to be used for bonding.

CD2015WBA

0.20 Ω

0.010 Ω

CD2520WBA

0.20 Ω

0.010 Ω

5.00°C/Watt

150°C

.250 ±.012

(6.35 ±.30)

.200 ±.012

(5.08 ±.30)

.078 min.

(1.98 min.)

.061 ±.005

(1.55 ±.13)

Terminals have an Aluminum surface layer for

wire bonding. Aluminum wire to be used for bonding.

Custom resistance values and non-standard tolerances

can be manufactured for high quantity applications.

Please contact Caddock Applications Engineering.

CD 2520 FC - 0.10 - 1%

Type CD

Physical Size

2015 = 0.200” x 0.150”

2520 = 0.250” x 0.200”

Style:

FC or WBA

Resistor Value (Ω)

See charts for availability

Tolerance:

±

1% 0.010 Ω and above.

Full reel quantities:

1000 pieces per reel for CD2015 and CD2520

Quantities of less than 250 will be shipped in tape without reel

and without tape leader at the option of Caddock.

Tape dimensions and materials will be consistent with EIA-481-1.

Reels will be marked with a label containing Caddock logo, part

number, resistor value, tolerance, packaging date, and quantity.

Dimensions in inches and (millimeters)

D

A

B

C

Carrier Tape and pocket dimensions:

Tape is 12mm Carrier Tape (8mm pitch)

0.189” (4.80mm)

Size 2015

0.209” (5.31mm)

0.087” (2.21mm)

0.271” (6.88mm)

Size 2520

0.216” (5.49mm)

0.066” (1.68mm)

Ao

Bo

Ko

Note: The sense connection for each

pedestal is positioned inboard of the current

connection (single or multiple current wires).

Tolerance CD2015WBA ±1% Standard.

CD2015WBA

Standard Resistance Values:

0.010 Ω

0.015 Ω

0.020 Ω

0.025 Ω

0.030 Ω

0.033 Ω

0.040 Ω

0.050 Ω

0.075 Ω

0.10 Ω

0.20 Ω

Tolerance CD2520WBA ±1% Standard.

CD2520WBA

Standard Resistance Values:

0.010 Ω

0.015 Ω

0.020 Ω

0.025 Ω

0.030 Ω

0.033 Ω

0.040 Ω

0.050 Ω

0.075 Ω

0.10 Ω

0.20 Ω

Page 2 of 2

Type CD Low Resistance Precision Chip Resistors

27.1 IL107.0802

© 2002 Caddock Electronics, Inc.

RHOPOINT COMPONENTS LTD

web: www.rhopointcomponents.com

e-mail: sales@rhopointcomponents.com

RHOPOINT COMPONENTS LTD

Holland Road, Hurst Green,

Oxted, Surrey, RH8 9AX

Phone: +44 (0) 1883 717988

Fax: +44 (0) 1883 712938

is a hybrid mountable version with copper pedestal terminals and an aluminum surface layer for wire

bonding. The back surface of these devices is metallized for solder attachment of the chip resistor to a heat sinking substrate.

Specifications:

Temperature Coefficient: TC referenced to

+25°C, ∆R taken at +150°C.

0.050 ohm to 0.20 ohm, 0 to +100 ppm/°C

0.010 ohm to 0.049 ohm, 0 to +200 ppm/°C

Inductance: Less than 5 nH typical

Load Life: 1000 hours at rated power, based

upon 150°C max. chip temperature,

∆

R ± (0.5% + 0.0005 ohm)

Momentary Overload: 1.5 times rated

power, for 5 seconds, ∆R ± (0.5% + 0.0005

ohm)

Operating Temperature: -55°C to +150°C

Measurement Note: All measurements

are taken using Kelvin connections per the

recommended connection locations.

Ordering

Information:

Ko signifies tape thickness and dimension

12mm

0.473”

Ao

Bo

7” dia.

(178 mm)

.512” arbor hole

(13mm)

Packaging information:

Style FC, flip chip resistors, are shipped with the bare

ceramic side up in the pocket, with the solderable pedestals

facing down.

Style WB, wire bondable resistors, are shipped with the

wire bondable pedestals facing up in the pocket.

The illustration shows the orientation of the CD2015 chip

resistors in the tape. The CD2520 resistors chips are ro-

tated 90° from what is shown in the illustration.

Style WB - Wire Bond Version

Note 3: Thermal Resistance - In High Power Applications where the circuit board material

provides high heat sinking benefits (such as IMS, Alumina, or other) the thermal resistance of

the chip resistor is useful to establish the maximum power capability of the chip resistor in the

application. The film temperature is measured at the center of the resistor element and the

solder pad temperature is measured at the soldered interface with the circuit board. Maximum

temperature of the chip resistor (at the center of chip) should not exceed 150°C through the

temperature range of the application.

WB Resistor mounting

Circuit board: IMS, Ceramic (Alumina) , or other.

Sense Wire

Current Wire

Film Temperature

Measuring Point

Solder pad, soldered

interface with circuit board.

Sense Wire

Current Wire

Location for Sense (Potential) Connection:

General Information for Type CD - Style FC and Style WB - Chip Resistors.

Solder attachment notes:

During soldering of the Type CD Resistor

the soldering temperature profile must not

cause the pedestal terminals of this device

to exceed 220°C.

Style FC - Flip Chip version resistors

have a bare ceramic back surface. The

recommended solder for flip chip solder

attachment is 62Sn / 36Pb / 2Ag.

Style WB - Wire Bond version resistors

have a metallized back surface for

soldering to a substrate or a heat sink.

The recommended solders is

62Sn / 36Pb / 2Ag.

Model

Resistance

Min.

Max.

Power Capability Information

Max. Chip

Temperature

Thermal Resistance

Film (J) to Solder Pad (C)

(see note 3)

Dimensions in inches and (millimeters)

A

B

D

C

Comments

8.33°C/Watt

150°C

.200 ±.012

(5.08 ±.30)

.150 ±.012

(3.81 ±.30)

.062 min.

(1.57 min.)

.061 ±.005

(1.55 ±.13)

Terminals have an Aluminum surface layer for

wire bonding. Aluminum wire to be used for bonding.

CD2015WBA

0.20 Ω

0.010 Ω

CD2520WBA

0.20 Ω

0.010 Ω

5.00°C/Watt

150°C

.250 ±.012

(6.35 ±.30)

.200 ±.012

(5.08 ±.30)

.078 min.

(1.98 min.)

.061 ±.005

(1.55 ±.13)

Terminals have an Aluminum surface layer for

wire bonding. Aluminum wire to be used for bonding.

Custom resistance values and non-standard tolerances

can be manufactured for high quantity applications.

Please contact Caddock Applications Engineering.

CD 2520 FC - 0.10 - 1%

Type CD

Physical Size

2015 = 0.200” x 0.150”

2520 = 0.250” x 0.200”

Style:

FC or WBA

Resistor Value (Ω)

See charts for availability

Tolerance:

±

1% 0.010 Ω and above.

Full reel quantities:

1000 pieces per reel for CD2015 and CD2520

Quantities of less than 250 will be shipped in tape without reel

and without tape leader at the option of Caddock.

Tape dimensions and materials will be consistent with EIA-481-1.

Reels will be marked with a label containing Caddock logo, part

number, resistor value, tolerance, packaging date, and quantity.

Dimensions in inches and (millimeters)

D

A

B

C

Carrier Tape and pocket dimensions:

Tape is 12mm Carrier Tape (8mm pitch)

0.189” (4.80mm)

Size 2015

0.209” (5.31mm)

0.087” (2.21mm)

0.271” (6.88mm)

Size 2520

0.216” (5.49mm)

0.066” (1.68mm)

Ao

Bo

Ko

Note: The sense connection for each

pedestal is positioned inboard of the current

connection (single or multiple current wires).

Tolerance CD2015WBA ±1% Standard.

CD2015WBA

Standard Resistance Values:

0.010 Ω

0.015 Ω

0.020 Ω

0.025 Ω

0.030 Ω

0.033 Ω

0.040 Ω

0.050 Ω

0.075 Ω

0.10 Ω

0.20 Ω

Tolerance CD2520WBA ±1% Standard.

CD2520WBA

Standard Resistance Values:

0.010 Ω

0.015 Ω

0.020 Ω

0.025 Ω

0.030 Ω

0.033 Ω

0.040 Ω

0.050 Ω

0.075 Ω

0.10 Ω

0.20 Ω

Page 2 of 2

Type CD Low Resistance Precision Chip Resistors

27.1 IL107.0802

© 2002 Caddock Electronics, Inc.

RHOPOINT COMPONENTS LTD

web: www.rhopointcomponents.com

e-mail: sales@rhopointcomponents.com

RHOPOINT COMPONENTS LTD

Holland Road, Hurst Green,

Oxted, Surrey, RH8 9AX

Phone: +44 (0) 1883 717988

Fax: +44 (0) 1883 712938

is a hybrid mountable version with copper pedestal terminals and an aluminum surface layer for wire

bonding. The back surface of these devices is metallized for solder attachment of the chip resistor to a heat sinking substrate.

Specifications:

Temperature Coefficient: TC referenced to

+25°C, ∆R taken at +150°C.

0.050 ohm to 0.20 ohm, 0 to +100 ppm/°C

0.010 ohm to 0.049 ohm, 0 to +200 ppm/°C

Inductance: Less than 5 nH typical

Load Life: 1000 hours at rated power, based

upon 150°C max. chip temperature,

∆

R ± (0.5% + 0.0005 ohm)

Momentary Overload: 1.5 times rated

power, for 5 seconds, ∆R ± (0.5% + 0.0005

ohm)

Operating Temperature: -55°C to +150°C

Measurement Note: All measurements

are taken using Kelvin connections per the

recommended connection locations.

Ordering

Information:

Ko signifies tape thickness and dimension

12mm

0.473”

Ao

Bo

7” dia.

(178 mm)

.512” arbor hole

(13mm)

Packaging information:

Style FC, flip chip resistors, are shipped with the bare

ceramic side up in the pocket, with the solderable pedestals

facing down.

Style WB, wire bondable resistors, are shipped with the

wire bondable pedestals facing up in the pocket.

The illustration shows the orientation of the CD2015 chip

resistors in the tape. The CD2520 resistors chips are ro-

tated 90° from what is shown in the illustration.

Style WB - Wire Bond Version

Note 3: Thermal Resistance - In High Power Applications where the circuit board material

provides high heat sinking benefits (such as IMS, Alumina, or other) the thermal resistance of

the chip resistor is useful to establish the maximum power capability of the chip resistor in the

application. The film temperature is measured at the center of the resistor element and the

solder pad temperature is measured at the soldered interface with the circuit board. Maximum

temperature of the chip resistor (at the center of chip) should not exceed 150°C through the

temperature range of the application.

WB Resistor mounting

Circuit board: IMS, Ceramic (Alumina) , or other.

Sense Wire

Current Wire

Film Temperature

Measuring Point

Solder pad, soldered

interface with circuit board.

Sense Wire

Current Wire

Location for Sense (Potential) Connection:

General Information for Type CD - Style FC and Style WB - Chip Resistors.

Solder attachment notes:

During soldering of the Type CD Resistor

the soldering temperature profile must not

cause the pedestal terminals of this device

to exceed 220°C.

Style FC - Flip Chip version resistors

have a bare ceramic back surface. The

recommended solder for flip chip solder

attachment is 62Sn / 36Pb / 2Ag.

Style WB - Wire Bond version resistors

have a metallized back surface for

soldering to a substrate or a heat sink.

The recommended solders is

62Sn / 36Pb / 2Ag.

Model

Resistance

Min.

Max.

Power Capability Information

Max. Chip

Temperature

Thermal Resistance

Film (J) to Solder Pad (C)

(see note 3)

Dimensions in inches and (millimeters)

A

B

D

C

Comments

8.33°C/Watt

150°C

.200 ±.012

(5.08 ±.30)

.150 ±.012

(3.81 ±.30)

.062 min.

(1.57 min.)

.061 ±.005

(1.55 ±.13)

Terminals have an Aluminum surface layer for

wire bonding. Aluminum wire to be used for bonding.

CD2015WBA

0.20 Ω

0.010 Ω

CD2520WBA

0.20 Ω

0.010 Ω

5.00°C/Watt

150°C

.250 ±.012

(6.35 ±.30)

.200 ±.012

(5.08 ±.30)

.078 min.

(1.98 min.)

.061 ±.005

(1.55 ±.13)

Terminals have an Aluminum surface layer for

wire bonding. Aluminum wire to be used for bonding.

Custom resistance values and non-standard tolerances

can be manufactured for high quantity applications.

Please contact Caddock Applications Engineering.

CD 2520 FC - 0.10 - 1%

Type CD

Physical Size

2015 = 0.200” x 0.150”

2520 = 0.250” x 0.200”

Style:

FC or WBA

Resistor Value (Ω)

See charts for availability

Tolerance:

±

1% 0.010 Ω and above.

Full reel quantities:

1000 pieces per reel for CD2015 and CD2520

Quantities of less than 250 will be shipped in tape without reel

and without tape leader at the option of Caddock.

Tape dimensions and materials will be consistent with EIA-481-1.

Reels will be marked with a label containing Caddock logo, part

number, resistor value, tolerance, packaging date, and quantity.

Dimensions in inches and (millimeters)

D

A

B

C

Carrier Tape and pocket dimensions:

Tape is 12mm Carrier Tape (8mm pitch)

0.189” (4.80mm)

Size 2015

0.209” (5.31mm)

0.087” (2.21mm)

0.271” (6.88mm)

Size 2520

0.216” (5.49mm)

0.066” (1.68mm)

Ao

Bo

Ko

Note: The sense connection for each

pedestal is positioned inboard of the current

connection (single or multiple current wires).

Tolerance CD2015WBA ±1% Standard.

CD2015WBA

Standard Resistance Values:

0.010 Ω

0.015 Ω

0.020 Ω

0.025 Ω

0.030 Ω

0.033 Ω

0.040 Ω

0.050 Ω

0.075 Ω

0.10 Ω

0.20 Ω

Tolerance CD2520WBA ±1% Standard.

CD2520WBA

Standard Resistance Values:

0.010 Ω

0.015 Ω

0.020 Ω

0.025 Ω

0.030 Ω

0.033 Ω

0.040 Ω

0.050 Ω

0.075 Ω

0.10 Ω

0.20 Ω

Page 2 of 2

Type CD Low Resistance Precision Chip Resistors

27.1 IL107.0802

Sales and Corporate Office

1717 Chicago Avenue

Riverside, California 92507-2364

Phone: (951) 788-1700

Fax: (951) 369-1151

Applications Engineering

17271 North Umpqua Hwy.

Roseburg, Oregon 97470-9422

Phone: (541) 496-0700

Fax: (541) 496-0408

e-mail: caddock@caddock.com • web: www.caddock.com

For Caddock Distributors listed by country see caddock.com/contact/dist.html

© 2004 Caddock Electronics, Inc.

CAD

K

DOC

Type MG Precision High Voltage Resistors

Specifications:

Resistance Tolerance:

Resistance Range

Tolerance

�

1%

�

1%, �0.5%, �0.25%, �0.1%

Standard

St'd with "-15" rating

Extended Range

�

1%

Resistance Range

Overload/Overvoltage, �R

N/A

0.5% max.

Standard

St'd with "-15" rating

Extended Range

0.8% max.

Models with low inductance construction are in shaded areas.

Models with Caddock's Non-Inductive Resistance Pattern are in non-shaded areas.

Standard and

St'd with "-15"

rating

�

80 ppm/�C from +25�C to +105�C,

-200 ppm/�C to +50 ppm/�C from

-15�C to +25�C.

Resistance

Range

�

80 ppm/�C from -15�C to +105�C,

referenced to +25�C.

TC Specifications

Extended

Range

Resistance Range

Load Life, �R

0.8% max.

0.5% max.

Standard

St'd with "-15" rating

Extended Range

0.8% max.

Dielect.

Strength

Max.

Continuous

Oper. Volt.

Watt-

age

Model

No.

A

B

C

Dimensions in inches and (millimeters)

Resistance

Standard

Max.

Extended

Max.

Min.

MG650

.313 �.020

(7.95 �.51)

.094 �.015

(2.39 �.38)

.025 �.002

(.64 �.05)

MG655

.313 �.030

(7.95 �.76)

.109 �.025

(2.77 �.64)

.025 �.002

(.64 �.05)

MG660

.500 �.030

(12.70 �.76)

.094 �.015

(2.39 �.38)

.025 �.002

(.64 �.05)

MG680

.750 �.030

(19.05 �.76)

.094 �.015

(2.39 �.38)

.025 �.002

(.64 �.05)

MG710

1.000 �.040

(25.40 �1.02)

.094 �.015

(2.39 �.38)

.025 �.002

(.64 �.05)

MG712

.400 �.060

(10.16 �.152)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG714

.562 �.060

(14.27 �1.52)

.150 �.030

(3.81 �.76)

.032 �.002

(.81 �.05)

MG715

.750 �.060

(19.05 �1.52)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG716

1.000 �.060

(25.40 �1.52)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG717

.710 �.050

(18.03 �1.27)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG720

1.500 �.080

(38.10 �2.03)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG721

1.000 �.050

(25.40 �1.27)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG725

2.000 �.080

(50.80 �2.03)

.140 �.030

(3.56 �.76)

.025 �.002

(.64 �.05)

MG730

1.500 �.080

(38.10 �2.03)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG731

1.000 �.060

(25.40 �1.52)

.315 �

.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG735

2.000 �.080

(50.80 �2.03)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG740

1.500 �.060

(38.10 �1.52)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG745

3.000 �.100

(76.20 �2.54)

.240 �.030

(6.10 �.76)

.040 �.002

(1.02 �.05)

MG750

2.125 �.060

(53.98 �1.52)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG780

3.125 �.060

(79.38 �1.52)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG785

4.000 �.120

(101.60 �3.05)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG810

5.000 �.120

(127.00 �3.05)

.315 �.030

(8.00 �.76)

.040 �.002

(1.02 �.05)

MG815

6.000 �.120

(152.40 �3.05)

.350 �.040

(8.89 �1.02)

.040 �.002

(1.02 �.05)

0.5

0.5

0.6

0.8

1.0

0.6

1.0

1.0

1.5

1.5

2.0

2.0

2.5

3.0

2.6

3.6

3.6

5.0

5.0

7.5

8.0

10.0

15.0

600

600

1,000

2,000

4,000

1,000

1,000

2,000

4,000

2,000

6,000

4,000

10,000

6,000

4,000

10,000

6,000

15,000

10,000

15,000

20,000

25,000

30,000

750

750

750

750

750

750

750

750

750

750

750

750

750

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

200 �

200 �

400 �

600 �

800 �

800 �

200 �

400 �

600 �

600 �

1 K

200 �

1.5 K

500 �

200 �

750 �

300 �

1 K

400 �

600 �

800 �

1 K

1 K

5 Meg

8 Meg

10 Meg

20 Meg

50 Meg

20 Meg

20 Meg

50 Meg

75 Meg

75 Meg

150 Meg

100 Meg

200 Meg

250 Meg

150 Meg

300 Meg

300 Meg

500 Meg

500 Meg

750 Meg

1,000 Meg

1,250 Meg

2,000 Meg

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

225 M

N/A

300 M

N/A

750 M

750 M

1,000 M

1,500 M

1,500 M

2,500 M

3,750 M

5,000 M

6,250 M

10,000 M

-15

Min.

6.5 Meg

N/A

N/A

N/A

N/A

N/A

N/A

26 Meg

70 Meg

17 Meg

N/A

51 Meg

N/A

77 Meg

40 Meg

178 Meg

64 Meg

288 Meg

128 Meg

192 Meg

320 Meg

400 Meg

384 Meg

Overload

Rating

Type 1

Type 1

Type 1

Type 1

Type 1

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Type 2

Now with Extended Resistance Range to 10,000 Megohms and Additional Models

Temperature Coefficient as tight as 80 ppm/°C, Combined with Excellent Long-Term Stability and Precision Tolerances.

the Type MG Precision High Voltage Resistors' outstanding

combination of performance features:

48,000 volts ("-15" ratings).

voltages for all models and values, (except "-15" ratings).

80 ppm/°C in combination with resistance tolerances as

tight as ±0.1%.

per 1,000 hours in extended load life testing of standard

resistance range values.

This exceptional performance has been proven through

many years of use in equipment that demands the highest

reliability and stability, including TWT amplifiers, X-ray

systems, geophysical instruments, and medical electronics.

Preconditioning for Power and Voltage Ratings

All power ratings and maximum operating voltage ratings

are for continuous duty. These ratings are based on pre-

stress voltage levels applied during the manufacturing

process to provide for stable resistor performance even

under momentary overload conditions.

Maximum operating voltages 60% higher than the values

listed in the table may be specified by adding "-15" to the

model number (Example: MG750-15). Note that overload

and overvoltage ratings do not apply to the "-15" resistors.

Resistance ranges for "-15" resistors shown in the table are

from "-15 Min." to "Standard Max."

Non-Inductive Performance

Most models are manufactured with Caddock's

Non-Inductive Design which uses a serpentine resistive

pattern that provides for neighboring lines to carry current in

opposite directions, thereby achieving maximum cancellation

of flux fields over the entire length of the resistor. This

efficient non-inductive construction is accomplished without

derating of any performance advantages.

Insulation Resistance: 10,000 Megohms, min.

Overload/Overvoltage: 5 times rated power

with applied voltage not to exceed 1.5 times max-

imum continuous operating voltage for 5 seconds

.

Type 1: DC Voltage

Thermal Shock: Mil-Std-202, Method 107,

Cond. C, ΔR 0.25% max.

Moisture Resistance: Mil-Std-202, Method 106,

Δ

R 0.4% max.

Load Life: 1,000 hours at +125°C at rated

voltage, not to exceed rated power.

Solderable Leads

Encapsulation: High Temperature Silicone Conformal.

Temperature Coefficient:

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28_IL110.1004