20W TO-126 HIGH POWER RESISTORS
Features………………………………………………………….
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.
Applications………………………………………………………
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
Dimensions
3.8
8.5
3.1
dia.3.1
12.0
Structure and Material
Epoxy Molding
Copper Wire Leads
Conductor
Resistor Film
Alumina
Copper Plate
100F
1.4
0.6
5.08
1.9
0.5
15.0
12.0
(mm)
Specification
20 Watts
1 Watts
5.9°C/W
0.01-0.09
Ω
E6
250 ppm/°C
+/-5%
0.1-9.1
Ω
E12
100 ppm/°C
+/- 5% and 1%
-55 to +155
°C
2000 Volts DC
∆R
+/- (1.0 %+0.05
Ω)
∆R
+/- (1.0 %+0.05
Ω)
∆R
+/- (1.0 %+0.05
Ω)
Min 95% coverage
Over 1000 MΩ
∆R
+/- (0.25 %
Ω)
Specifications subject to change without notice
Items
Power Rating
Power Rating
Thermal Resistance
Resistance Range
Nominal Resistance Series
TCR
Tolerance
Operation Temp. Range
Dielectric Withstanding Voltage
Load Life
Humidity
Soldering Heat (Max)
Solderability
Insulation Resistance
Vibration
15.2
MHP20S
Conditions
@ Tab Temp < 25°C
Free air.
From hot spot to tab.
10-220
Ω
E24
50 ppm/°C
+/- 1%
60 seconds. between terminals and flange
25°C, 90 min. ON, 30 min.OFF, 1000 hours.
60°C, 90-95% RH, DC 0.1W, 1000 hours.
250+/-5°C, 3 seconds,
230+/-5°C, 3 seconds.
Between terminals and metal back plate.
Extended resistance range to 51KΩ avail.
Additional 2.0Ω and 5.0
Ω
also avail.
For -55 to +155°C
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.
1
MHP 20S
20W TO-126 HIGH POWER RESISTORS
Flange Temperature Rise
Derating Curve
Rating Power (W), with 2.8°C/W heat sink.
MHP 20S 100 F
(°C)
140
120
MHP 20S 100 F
10
8
6
4
2
0
-50
+155°C
+25°C
100
80
60
40
20
0
0
10
Power (W)
20
0
50
100
150
Flange Temperature (°C)
200
Frequency Characteristics
Impedance (Ω)
1K
MHP 20S 1K0 F
One time rectangular impulse
.
Pulse Peak (Watts)
10K
MHP 20S 100 F
100
MHP 20S 101 F
1K
MHP 20S 500 F
10
MHP 20S 5R0 F
100
1
100K
1M
10M
100M
1G
10G
10
Frequency(Hz)
1µ
10µ
100µ
1m
10m
100m
Pulse Width (seconds)
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
Tolerance
J = 5% Tol
F = 1% Tol
2