90

KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com

Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.

12/23/08

fixed metal film melf resistors

Absolute

Maximum

Working

Voltage

RN412A

RN412B

RN412D

RN412E

RN412H

RM412D

RM412H

Part

Designation

Absolute

Maximum

Overload

Voltage

Operating

Temperature

Range

Power

Rating

@ 70°C

T.C.R.

(ppm/°C)

Max.

applications and ratings

1/8W (.125W)

1/5W (.2W)

1/4W (.25W)

1/2W (.5W)

1/5W (.2W)

1/2W (.5W)

±100

±50

±200

±350

E-24

(J±5%)

E-24, E-96

(F±1%)

200V

300V

150V

—

—

—

—

—

—

—

0.22

Ω-100KΩ

100

Ω-100KΩ

10

Ω-604KΩ

10

Ω-1.0MΩ

0.22

Ω-8.2Ω

(E-12)

200V

500V

600V

-55°C

to

+155°C

Derating Curve

Surface Temperature Rise

environmental applications

100

80

60

40

20

20

40

60

80

100120140160

155

70

Ambient Temperature

(°C)

0

0

80

60

40

20

25

50

75

100

% Rated Power

0

0

2E

2B

2H

2D

2A

PMS 300 neg.

Black neg.

E-24, E-96

(C±0.25%)

—

100

Ω-100KΩ

—

—

—

—

E-24, E-96

(D±0.5%)

—

—

—

—

—

—

1/8W (.125W)

±50

±25

——

100

Ω-604KΩ

±50

±25

100

Ω-100KΩ 100Ω-1MΩ

RN412ES

1/4W (.25W)

—

1

Ω-5.11MΩ

——

±50

±25

100

Ω-100KΩ 100Ω-604KΩ

±350

——

—

0.22

Ω-0.91Ω

250V

400V

—

—

250V

Performance Characteristics

—

—

Resistance Range

(B±0.1%)

—

—

—

—

—

—

—

—

—

43

Ω-511KΩ

—

RN413AS

1W

1

Ω-1MΩ

——

±50

—

0.22

Ω-0.91Ω

600V

400V

Parameter

Requirement

∆ R

Limit

Typical

Test Method

Resistance

T.C.R.

25°C

+25°C/-55°C, +25°C/+125°C

Within specified

tolerance

Within specified

T.C.R.

—

—

Overload (Short time)

Rated voltage x 2.5 for 5 seconds

±0.5%

±0.3%

Resistance to Solder Heat

260°C ± 5°C, 10 seconds ± 1 second

±0.5%

±0.3%

Intermittent Overload

Rated voltage x 4 (2Ax3) or Max. intermittent overload voltage, whichever

is lower, 10,000 cycles. 2A: 200V, 2B & 2D: 300V, 2E: 500V, 2H: 600V

±1%: RN41 2E

±2%: RM41 2H

—

Rapid Change of Temperature

-55°C (30 minutes), +125°C (30 minutes), 5 cycles

±0.5%: RN41 2A-2E

±1%: RN41 2H

±1%: RM41

±0.3%: RN41 2A-2E

±0.7% RN41 2H

±0.75%: RM41

Moisture Resistance

40°C ± 2°C, 90 - 95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle

±1%*, ±3%**,

±5%***

±3%: ****

±0.75%*,

±1.5%**, ±3%***

±1.5%: ****

Endurance at 70°C

70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle

±1%*, ±3%**,

±5%***

±5%: ****

±0.5%*, ±1.5%**,

±3%***

±3%: ****

High Temperature Exposure

+125°C, 100 hours

±1%: RN41

±0.75%: RN41

*RN41 2B-2E

**RN41 2A

*** RN41 2H

**** RM41

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1/27/09

4:08 PM

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