PerformanceCharacteristics

Parameter

Requirement∆R%

Limit

Typical

TestMethod

Resistance

T.C.R.

25°C (Measurement position: 10mm under from the case)

+25°C/-55°C and +25°C/+125°C

(Application range: the straight style of 0.018Ω over)

Within regulated

tolerance

Within specified

T.C.R.

—

—

Overload (Short time)

Rated power x 2.5 for 5 seconds (Application range: 0.05Ω & over)

±2.0%

±1.0%

Resistance to Solder Heat

260°C ± 5°C, 10 seconds ± 1 second

±2.0%

±1.0%

Moisture Resistance

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

±5.0%

±3.0%

Endurance at 70°C

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

±5.0%

±3.0%

High Temperature Exposure

+125°C, 100 hours

±3.0%

±2.0%

Resistance to Solvent

After immersing the sample in I.P.A for 60 seconds ± 10 seconds,

the resistor surface should be rubbed with absorbent cotton 10 times

No evidence of damage

to protective coating

and marking

—

environmental applications

BPR

rectangular type metal plate resistors

K:±10%

(E12)

ResistanceRange

J:±5%

(E12)

Part

Designation

Rated

Ambient

Temperature

Operating

Temperature

Range

Power

Rating

T.C.R.

(ppm/°C)

Max.

applications and ratings

BPR26

BPR28

2W

2W

±350*

0.01Ω

0.1Ω - 0.68Ω

+70°C

0.01Ω - 0.68Ω

-40°C to +200°C

BPR38

3W

BPR58

5W

BPR108

10W

BPR55

5W+5W

BPR77

7W+7W

0.01Ω - 1.0Ω

0.01Ω, 0.1Ω - 1.0Ω

0.05Ω, 0.1Ω - 1.0Ω

–––

0.05Ω, 0.1Ω

0.22Ω - 0.47Ω

0.03Ω - 0.47Ω

Resistance

J:±5%

26,28

standard resistance

0.01

0.012 H

0.015

0.02*

0.022

0.027

0.03*

0.033

0.039

K:±10% J:±5% K:±10%

38

J:±5%

58

K:±10% J:±5% K:±10%

108

J:±5%

55

K:±10% J:±5% K:±10%

77

H

H

H

H

H

H

H

H

H

HH

H

H

H

H

H

H

H

H

HH

H

H

H

H

H

H

H

H

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H

––

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0.04*

0.047

0.05*

0.068

0.082

0.1

H

0.12

H

0.15

H

0.18

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

0.22

0.27

H

H

0.33

H

0.39

H

0.47

H

0.56

H

0.68

H

0.82

1.00

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

––

––

––

H

H

H

H

H

––

––

––

H

H

––

––

––

H

H

––

––

––

H

: Available

Blank : Please consult

–– : Not available

* Non standard E-12 Decade Value

H

H

H

H

H

H

167

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

Specificationsgivenhereinmaybechangedatanytimewithoutpriornotice.Pleaseconfirmtechnicalspecificationsbeforeyouorderand/oruse.

12/18/12

* Application range: The straight style of 0.018Ω or over