RF73

fusing flat chip resistor

Maximum

Open

Circuit

Voltage

Part

Designation

Operating

Temperature

Range

Power

Rating

@70°C

T.C.R.

(ppm/°C)

Max.

Resistance

Range

E-24

Resistance

Tolerance

applications and ratings

RF732A

RF732B

RF732E

RF732H

RF733A

+1000 ~ -500

(0.2Ω-4.3Ω)

±500

(4.7Ω-510Ω)

3.0W

0.2Ω-0.47Ω

3.75W

0.2Ω-0.47Ω

4.5W

0.2Ω-0.47Ω

5.5W

0.2Ω-0.47Ω

6.5W

0.2Ω-0.47Ω

2.6W

0.51Ω-1.0Ω

2.875W

0.51Ω-10Ω

4.1W

0.51Ω-4.7Ω

5.0W

0.51Ω-4.7Ω

6.0W

0.51Ω-4.7Ω

2.4W

1.1Ω-20Ω

2.5W

11Ω-24Ω

3.5W

5.1Ω-27Ω

4.0W

5.1Ω-27Ω

5.0W

5.1Ω-30Ω

2.1W

22Ω-100Ω

2.0W

27Ω-100Ω

3.2W

30Ω-100Ω

3.5W

30Ω-100Ω

4.5W

33Ω-100Ω

2.0W

110Ω-510Ω

1.75W

110Ω-510Ω

3.0W

110Ω-510Ω

3.2W

110Ω-510Ω

4.0W

110Ω-510Ω

0.1W

0.125W

0.25W

0.2Ω-510Ω

J: ±5%

50V

100V

0.50W

1.0W

-55°C

to

+125°C

60

sec.

max.

Fusing

Time

FusingCharacteristics

FusingPower

PerformanceCharacteristics

DeratingCurve

environmental applications

100

80

60

40

20

-60

-40

-20

0

40

6080100140

70

20

Ambient Temperature

(°C)

0

-55

120

125

One-PulseLimitingElectricPower

30

10

.1

10

2E

1J, 2A

2B

1

2H

Pulse Duration

(ms)

100

1

.01

3A

5

15

20

25

ExampleofFusingCharacteristics

10

15

2E

1J,

2A

2B

1

2H

FusingPower

(W)

6

2

0

3A

34

7

8

RF731J

––

2.6W

1.0Ω

2.4W

1.1Ω-20Ω

2.1W

22Ω-100Ω

––

0.063W

+1000 ~ -500

(1.0Ω-3.3Ω)

±500

(3.6Ω-100Ω)

1Ω-100Ω

Resistance

25°C

Within specified

tolerance

T.C.R.

+25°C/-55°C and +25°C/+125°C

Within specified

T.C.R.

Overload (Short Time)

Rated voltage x 2 for 5 seconds (except 2E, 2H, 3A: x 1.5)

±5.0%

±3.0%

Resistance to Solder Heat

260°C ± 5°C for 10 seconds ± 1 second

Moisture Resistance

40°C ± 2°C, 90 - 95% RH, 500 hours, 1.5 hr ON, 0.5 hr OFF cycle

±5.0%

Endurance at 70°C

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

±5.0%

Rapid Change of Temperature

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

±0.5%: 2A~3A

±3.0%: 1J

High Temperature Exposure

+125°C, 100 hours

±1.0%

––

––

±2.0%

0.5%

±2.0%

±1.0%

±0.3%: 2A~3A

±0.6%: 1J

±0.6%

Parameter

Requirement∆R±(%+0.1Ω)

Limit

Typical

TestMethod

For resistors operated at an ambient temperature

of 70°C or above, a power rating shall be derated

in accordance with the above derating curve.

47

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

Specificationsgivenhereinmaybechangedatanytimewithoutpriornotice.Pleaseconfirmtechnicalspecificationsbeforeyouorderand/oruse.

11/27/14