Document Number: 63011

For any questions, contact: foil@vishay.com

www.vishay.com

Revision: 05-Jun-07

1

VTA52 through 56, VMTA55, VMTB60

Vishay Foil Resistors

Meets or Exceed MIL-R-39005 Requirements

Any value and tolerance available within resistance range

This series of axial leaded resistors is made using the same

foil technology as the S102C. The difference is axial versus

radial leads. Axial leads have the advantage of readily

available auto insertion equipment while the radial leaded

devices

may

require

additional

tooling.

Also,

when

converting from metal film (RNC 55) to foil (VMTA 55) boards

may already be laid out for the axial leaded device. It is worth

noting that for new designs the S102C footprint is the

smallest in the industry (taking into account the need for lead

exit to board pad length allowance).

Our Application Engineering Department is available to

advise and to make recommendations. For non-standard

technical requirements and special applications, please

contact us.

FEATURES

± 8 ppm/°C (- 55 °C to + 125 °C, + 25 °C Ref.)

± 4 ppm/°C (0 °C to + 60 °C)

• Tolerance: to ± 0.01 %

• Load Life Stability:

± 0.05 % at 25 °C, 2000 hours at Rated Power

± 0.0025 % at 25 °C, 2000 hours at Low Power

• Electrostatic Discharge (ESD) above 25 000 Volts

• Resistance Range: 5 Ω to 500 kΩ

• Power Rating: 0.2 W to 1.0 W at 70 °C

• Non-Inductive, Non-Capacitive Design

• Thermal EMF: 0.1 µV/°C maximum, 0.05 µV/°C typical

• Voltage Coefficient: < 0.1 ppm/V

• Terminal Finishes available: Lead (Pb)-free

Tin/Lead

• For better performances, please contact Application

Engineering

• Any value available within resistance range (e.g. 1K2345)

information, please contact foil@vishay.com

Notes

1. For higher/lower resistance values, consult the Application Engineering Department

2. TCR options for values > 50

Ω

V4 = ± 4 ppm/°C (0 to + 60 °C); ± 8 ppm°C (- 55 °C to + 125 °C, + 25 °C Ref.)

V3 = ± 3 ppm/°C (0 to + 60 °C); ± 5 ppm/°C (- 55 °C to + 125 °C, + 25 °C Ref.)

V2 = ± 2 ppm/°C (0 to + 60 °C); ± 5 ppm/°C (- 55 °C to + 125 °C, + 25 °C Ref.)

* Pb containing terminations are not RoHS compliant, exemptions may apply

TABLE 1 - TCR (for values under 50R)

VALUES

0 °C to + 60 °C

- 55 to + 125 °C,

+ 25 °C Ref.

25R - 50R

± 5 ppm/°C

± 8 ppm/°C

15R - 24R999

± 6 ppm/°C

± 10 ppm/°C

5R - 14R999

± 8 ppm/°C

± 12 ppm/°C

1R - 4R999

± 15 ppm/°C

± 20 ppm/°C

FIGURE 1 - POWER DERATING CURVE

Available

Pb-free

RoHS*

COMPLIANT

220

180

160

140

120

100

80

60

40

20

0

30

40

50

60

70

80

90

100

110

120

130

140

150

Ambient Temperature (°C)

Double Rated Power

+ 145 °C

Rated

Power

200

TABLE 2 - MODEL SELECTION

VISHAY

MODEL

MIL

STYLE

POWER

MAXIMUM

WORKING VOLTAGE

RESISTANCE

Ω)

TIGHTEST

TOLERANCE

at + 70 °C

at + 125 °C

VTA56

RBR56

0.25 W

0.125 W

300 V

5 to 24R9

25 to 150K

± 0.1 %

± 0.01 %

V4

V3, V2

VTA55

RBR55

0.3 W

0.15 W

300 V

5 to 24R9

25 to 150K

± 0.1 %

± 0.01 %

V4

V3, V2

VTA54

RBR54

0.5 W

0.25 W

300 V

5 to 24R9

25 to 300K

± 0.1 %

± 0.01 %

V4

V3, V2

VTA53

RBR53

0.66 W

0.33 W

300 V

5 to 24R9

25 to 300K

± 0.1 %

± 0.01 %

V4

V3, V2

VTA52

RBR52

1.0 W

0.5 W

300 V

5 to 24R9

25 to 500K

± 0.1 %

± 0.01 %

V4

V3, V2

VMTA55

RNC55

0.2 W

0.1 W

200 V

5 to 49R9

50 to 30K

± 0.1 %

± 0.01 %

V4

V3, V2

VMTB60

RNC60

0.25 W

0.125 W

250 V

5 to 49R9

50 to 60K

± 0.1 %

± 0.01 %

V4

V3, V2