140W TO-247 HIGH POWER RESISTORS

Non-inductive, high power resistor.

Thermally enhanced Industry standard TO-247 package.

Extremely Low thermal resistance, 0.9

°C/W resistor hot spot to metal tab.

Complete thermal flow design available for easy implementation.

Small thin package for high density PCB installation.

RoHS compliant.

High frequency circuits and RF power amplifiers.

UPS and power supply circuits

Motor control and power/RF power amplifiers.

Industrial power equipment.

PLC drivers.

Inrush current protection.

Specification

Specifications subject to change without notice.

Notes:

1.

Electrically isolated metal tab.

2.

Recommend the use of thermal grease between metal tab and heat sink.

3.

Thermal design should account for a thermal resistance between resistor and tab of 0.9

°C/W and a maximum resistor temperature of

155

°C.

4.

Resistances greater than 220

Ω are available, please call factory.

5.

Current rating: 25A maximum.

Items

Specification

Conditions

Power Rating

140 Watts

@ Tab Temp < 25

°C

Power Rating

5.0 Watts

Free air.

Resistance Range

0.01-0.09

Ω

0.1-9.1

Ω

10-220

Ω

Extended resistance range to 51K

Ω avail.

Nominal Resistance Series

E6

E12

E24

2.0

Ω and 5.0 Ω also available.

TCR

250 ppm/

°C

100 ppm/

°C

50 ppm/

°C

For -55 to +155

°C

Tolerance

5%

5% and 1%

1%

Operation Temp. Range

-55 - +155

°C

Rated Voltage (Max).

700V or

√(P*R)

Dielectric Withstanding Voltage

2500 Volt

60 seconds.

Load Life

∆R +/- (1.0 %+0.05 Ω)

25

°C, 90 min. ON, 30 min.OFF, 1000 hours.

Humidity

∆R +/- (1.0 %+0.05 Ω)

40

°C, 90-95% RH, DC 0.1W, 1000 hours.

Temperature Cycle

∆R +/- (0.25 %+0.05 Ω)

-55

°C, 30 min.,+155°C 30min., 5cycles.

Soldering Heat (Max)

∆R +/- (0.25 %+0.05 Ω)

250+/-5

°C, 3 seconds,

Solderability

Min 95% coverage

230+/-5

°C, 3 seconds.

Insulation Resistance

Over 1000 M

Ω

Between terminals and metal back plate.

Vibration

∆R +/- (0.25 %+0.05 Ω)

Structure and Material

Epoxy Molding

　　

Copper Wire Leads

Conductor

Resistor Film

　　

Alumina

　　

Copper Plate

Dimensions (mm)

dia.3.2

20

5.1

4.8

16.0

3+/-0.3

10.9

14.5 +/-0.5

dia.0.8

MHP 140

100F

1