fixed metal film melf resistors

PerformanceCharacteristics

Parameter

Requirement∆R±(%+0.05Ω)

Limit

Typical

TestMethod

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%

2ES

±0.3%

Resistance to Soldering Heat

260°C ± 5°C, 10 seconds ± 1 second

±2%: 2H (10Ω>)

±1%: 2H (10Ω≤)

±0.5%: RN 2A~2E

2ES

±1%: 2H (10Ω>)

±0.5%: 2H (10Ω≤)

±0.3%: RN 2A~2E

Intermittent Overload

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

is lower, 10,000 cycles. 2A: 200V, 2D: 300V, 2E: 500V, RN2H: 600V

±1%: RN41

2A,2D,2H

±0.5%: RM41 2E

—

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%: RN41 2D,2E

±3%: RN41 2A

±5%: RN41 2H

±5%: RM41

2ES

±0.75%: RN41 2D,2E

±1.5%: RN41 2A

±3%: RN41 2H

±3%: RM41

Endurance at 70°C

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

±1%: RN41 2D,2E

±3%: RN41 2A

±5%: RN41 2H

±5%:RM41

2ES

±0.5%:RN41 2D,2E

±1.5%:RN41 2A

±3%: RN41 2H

±3%: RM41

High Temperature Exposure

+125°C, 100 hours

±1%: RN41

2ES

±0.75%: RN41

StabilityClass

Stability

Class

Resistance

Range

0.25

10-332kΩ

±(0.25 + 0.05Ω)

±(0.05 + 0.05Ω)

±(0.50 + 0.05Ω)

±(0.50 + 0.05Ω)

±(0.25 + 0.05Ω)

1-<10Ω

0.5

±(0.50 + 0.05Ω)

±(2.00 + 0.05Ω)

±(1.00 + 0.05Ω)

±(0.50 + 0.05Ω)

>332kΩ-≤11MΩ

2

AB

C

D

LimitResistanceChangingAttests(TestGroup)

±(1.00 + 0.05Ω)

±(0.10 + 0.05Ω)

±(0.25 + 0.05Ω)

0.22-<1Ω

1

79

KOASpeerElectronics,Inc. • 199BolivarDrive • Bradford,PA16701 • USA • 814-362-5536 • Fax:814-362-8883 • www.koaspeer.com

Specificationsgivenhereinmaybechangedatanytimewithoutpriornotice.Pleaseconfirmtechnicalspecificationsbeforeyouorderand/oruse.

11/18/14