POWER SOLUTION – NIKKOHM
140W HIGH POWER RESISTORS
RNP100S
Dimensions (mm)
dia.3.2
RNP100S
100
CFN31
20
5.1
4.8
16.0
3+/-0.3
dia.0.8
10.9
20
Features and Applications
Up to 140W high power rating at 25C flange temperature cased in TO-247 mold package.
Only 0.9C/W thermal resistance from resistor surface to flange or metal back plate are realized.
Complete thermal conduction and heat transfer design is available.
Linear temperature raise / applied power characteristics are realized.
Exposed high thermal conduction metal is useful for excellent heat transfer to outer heat sink.
Insulation sheet is unnecessary, sufficient insulation between circuit and back metal is supported at internal structure.
Non-inductive designs effective in wide frequency range.
Small size 100W power resistors and thin type fit for higher density design at power electronics.
RNP100S will be applied to such industrial power equipments and radio frequency circuits as UPS, motor control, power
amplifier, RF power amplifier, automated machine control and power supplies.
Recommendation
Flat surface heat sink, thermal compound and sufficient mount screw torque will be necessary for well heat transfer.
In rush current protection application as charge current limitation resistor, sufficient power derating will be necessary.
Specifications and Performances
Specification Items
Rating Power
Rating Power
Resistance Range
Nominal Resistance
TCR
Tolerance
Operation Temp. Range
Max. Applied Voltage
Withstanding Voltage
Load Life
Humidity
Temperature Cycle
Short Time Overload
Soldering Heat
Solder ability
Insulation Resistance
Vibration
Specification-Performance
140 Watts
5.0 Watts
0.1-9.1 ohm
10-200 ohm
E12
E24
100 ppm/C
50 ppm/C
+/- 5% and +/- 1%
-55 - +155 C
sqrt(RP)
2500 Volt
+/- (1.0 %+0.05 ohm)
+/- (1.0 %+0.05 ohm)
+/- (0.25 %+0.05 ohm)
+/- (0.25 %+0.05 ohm)
+/- (0.25 %+0.05 ohm)
Over 3/4 of round
Over 1000 Meg ohm
+/- (0.25 %+0.05 ohm)
Conditions
Free air.
More than 200 ohm resistance are available
Additional 2.0 and 5.0.
For -55 to +155C
60 seconds.
25C, 90 min. ON, 30min.OFF, 1000hours.
40C, 90-95%RH, DC0.1W, 1000hours.
-55C, 30 min.,+155C 30min., 20cycles.
Rating watt*1.5, 2.5seconds, with 0.2C/W heat sink.
350+/-5C, 3seconds,
230+/-5C, 3seconds.
Between terminals and metal back plate.
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