RK73B

general purpose 2%, 5% tolerance

thick film chip resistor

* Please refer to the “Higher Power Ratings” statement in the beginning of the catalog. Also, contact KOA prior to usage and for the max. working voltage

and max. overload voltage.

Maximum

Working

Voltage

J±5%

E-24

G±2%

E-24

Part

Designation

Maximum

Overload

Voltage

Operating

Temperature

Range

Power

Rating

@70°C

T.C.R.

applications and ratings

RK73B1H

(0201)

RK73B1E

(0402)

0.05W

0.063W (0.1W*)

RK73B1J

(0603)

0.10W (0.125W*)

RK73B2A

(0805)

0.125W (0.25W*)

RK73B2B

(1206)

RK73B2E

(1210)

0.25W

±200

10Ω - 10MΩ

10Ω - 10MΩ

25V

50V

50V

100V

150V

200V

200V

400V

-55°C to

+125°C

-55°C to

+155°C

Rated

Terminal

Part

Temperature

—

125°C

±200

1Ω - 10MΩ

±400

1Ω - 10MΩ

RK73BW2H/2H

(2010)

RK73BW3A/3A

(2512)

0.75W

1.0W

±200

1Ω - 10MΩ

1Ω - 10MΩ

11MΩ - 22MΩ

1Ω - 1MΩ

1.1MΩ - 10MΩ

1Ω - 5.6MΩ

6.2MΩ - 22MΩ

6.2MΩ - 22MΩ

6.2MΩ - 22MΩ

—

1Ω - 1MΩ

1.1MΩ - 10MΩ

1Ω - 5.6MΩ

10Ω - 1kΩ

1.1kΩ - 5.6MΩ

10Ω - 5.6MΩ

1Ω - 5.6MΩ

1Ω - 5.6MΩ

10Ω - 5.6MΩ

1Ω - 1KΩ

1.1KΩ - 5.6MΩ

6.2MΩ - 10MΩ

6.2MΩ - 10MΩ

±200

±400

±200

±200

±400

0.50W

0.33W (0.5W*)

±400

—

—

—

±200

±400

±200

±400

±400

—

1Ω - 9.1Ω

±200

100kΩ - 1MΩ

100kΩ - 1MΩ

0.03W

RK73B1F

(01005)

20V

30V

400V

(500V*)

200V

(500V*)

±250

100Ω - 91kΩ

100Ω - 91kΩ

±300

10Ω - 91Ω

10Ω - 91Ω

0~+300

1Ω - 9.1Ω

1Ω - 9.1Ω

PerformanceCharacteristics

Parameter

Requirement∆R(%+0.1Ω)

Limit

Typical

TestMethod

Resistance

T.C.R.

25°C

+25°C/-55°C and +25°C/+125°C

Within specified tolerance

Within specified T.C.R.

—

—

Overload (Short time)

Rated Voltage x 2.5 for 5 seconds

(2B: Rated Voltage x 2 for 5 seconds)

±2%

±1%: 1F

±0.5%: Another

Resistance to Soldering Heat

260°C ± 5°C, 10 seconds ± 1 second

±1%: 1F~W3A (10Ω≤R≤1MΩ)

±3%: 1F~W3A (R<10Ω, R>1MΩ)

±0.5%: 1F~W3A

(10Ω≤R≤1MΩ); ±1%: 1F~W3A

(R<10Ω, R>1MΩ)

Rapid Change of Temperature

-55°C (30 minutes), +125°C (30 minutes), 100 cycles

±1%: 1F

±0.5%: Another

±0.5%: 1F

±0.3%: Another

Moisture Resistance

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

0.5 hr OFF cycle

±2%: 1J, 2A, 2B

±3%: Another

±0.75%: 1J, 2A, 2B

±1.5%: 1F

±1%: Another

Endurance at 70°C

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

±2%: 1J, 2A, 2B

±3%: Another

±0.75%: 1J, 2A, 2B

±1%: Another

High Temperature Exposure

+125°C, 1000 hours: 1F; +155°C, 1000 hours: 1E, 1H,

1J, 2A, 2B, 2E, 2H/W2H, 3A/W3A

±1%

±0.5%: 1F

±0.3%: Another

environmental applications

14

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

Specificationsgivenhereinmaybechangedatanytimewithoutpriornotice.Pleaseconfirmtechnicalspecificationsbeforeyouorderand/oruse.

12/05/14

ResistanceRange

Rated ambient temperature: +70°C

Rated voltage = √Power rating x resistance value or max. working voltage, whichever is lower