BITECH MHP20S

20W TO-126 HIGH POWER RESISTORS
Features………………………………………………………….
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Non-Inductive, Small, 20 Watt high power resistor.
TO-126 style package offering a very low thermal resistance of 5.9 C°/W.
Complete thermal flow design available for easy implementation.
Superior vibration durability.
Small thin package for high density PCB installation.
RoHS compliant.
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Applications………………………………………………………
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High frequency emitter resistors in switching power supplies.
High precision CRT color video amplifiers.
High frequency snubber and pulse handling circuits.
VHF amplifiers.
Pulse generator load resistors.
Specification
Structure and Material
Dimensions
3.8
8.5
dia.3.1
3.1
Epoxy Molding
Copper Wire Leads
Conductor
Resistor Film
Alumina
Copper Plate
MHP20S
100F
15.2
12.0
15.0
1.9
0.5
0.6
5.08
12.0
1.4
(mm)
Items
Specification
Power Rating
Conditions
20 Watts
@ Tab Temp < 25°C
Power Rating
1 Watts
Free air.
Thermal Resistance
5.9°C/W
From hot spot to tab.
Resistance Range
0.01-0.09 Ω
0.1-9.1 Ω
10-220 Ω
Extended resistance range to 51KΩ avail.
Nominal Resistance Series
E6
250 ppm/°C
E12
100 ppm/°C
E24
50 ppm/°C
Additional 2.0Ω and 5.0 Ω also avail.
+/- 5% and 1%
+/- 1%
TCR
Tolerance
Operation Temp. Range
Dielectric Withstanding Voltage
+/-5%
For -55 to +155°C
-55 to +155 °C
2000 Volts DC
60 seconds. between terminals and flange
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)
60°C, 90-95% RH, DC 0.1W, 1000 hours.
Soldering Heat (Max)
∆R +/- (1.0 %+0.05 Ω)
250+/-5°C, 3 seconds,
Min 95% coverage
230+/-5°C, 3 seconds.
Solderability
Insulation Resistance
Vibration
Over 1000 MΩ
Between terminals and metal back plate.
∆R +/- (0.25 % Ω)
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 5.9°C/W and a maximum resistor temperature of
155°C.
4. Current rating: 25A maximum.
5. For the resistance range 220Ω to 51KΩ, the power rating is restricted to 10W.
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MHP 20S
20W TO-126 HIGH POWER RESISTORS
Derating Curve
Rating Power (W), with 2.8°C/W heat sink.
Flange Temperature Rise
(°C)
140
MHP 20S 100 F
120
10
100
+25°C
8
MHP 20S 100 F
80
6　60
4
40
2
0
-50
20
+155°C
0
50
100
150
Flange Temperature (°C)
0
0
200
10
Power (W)
Frequency Characteristics
20
One time rectangular impulse.
Impedance (Ω)
1K
Pulse Peak (Watts)
10K
MHP 20S 1K0 F
MHP 20S 100 F
100
MHP 20S 101 F
1K
MHP 20S 500 F
10
100
MHP 20S 5R0 F
1
10
100K
1M
10M
100M
1G
10G
1µ
Frequency(Hz)
10µ
Ordering Information
MHP 20S
500
F
Model
Resistance Code
0.1Ω : 0R100
50 Ω : 500 First two digits significant, last digit: number of trailing zeros
2
100µ
1m
10m
Pulse Width (seconds)
Tolerance
J = 5% Tol
F = 1% Tol
100m