140W TO-247 HIGH POWER RESISTORS
Features………………………………………………………….
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.
Applications………………………………………………………
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 220Ω 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 Ω0.1-9.1 Ω10-220 ΩExtended resistance range to 51KΩ avail.
Nominal Resistance Series E6 E12 E24 2.0 Ω and 5.0 Ω also available.
TCR 250 ppm/°C100 ppm/°C50 ppm/°CFor -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 MΩBetween 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
Mounting Recommendations
Sufficient torque must be used to obtain optimum heat transfer.
Ordering Information
MHP 140 500 F
Model
Resistance Code Tolerance
0.1Ω : 0R100 J = 5% Tol
50 Ω : 500 First two digits significant, last digit: number of trailing zeros F = 1% Tol
Pulse Energy Durability
Pulse Peak (Watts)
100K
10K
1K
100
100n 1u 10u 100u 1m 10m
Pulse Width (seconds)
Frequency Characteristics
Impedance (Ω)
1K
100
10
1
10K 100K 1M 10M 100M 1G
Frequency (Hz)
Derating Curve
Power rating (Watts)
150 25°C
125
100
75
50
25
+155°C
0
-50 0 50 100 150 200
Flan
g
e Tem
p
erature
(
°C
)
Temperature Rise
140
120
100
80
60
40
20
0
0 25 50 75 100 125 150
Power (Watts)
MHP140 0R200 to MHP140 100 F
MHP140 100 F
MHP 140 140W TO-247 HIGH POWER RESISTORS
2
MHP140 1R5J
