20W TO126
High Power Resistors
MHP 20 S
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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
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.
Specifications
Items
Power Rating
Power Rating
Thermal Resistance
Resistance Range
Nominal Resistance Series
TCR
Tolerance
Operation Temp. Range
Dielectric Withstand Voltage
Load Life
Humidity
Soldering Heat (Max)
Solderability
Insulation Resistance
Vibration
Specifications subject to change without notice
Note:
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.
Specification
20 Watts
1 Watts
5.9°C/W
0.01-0.09
Ω
E6
250 ppm/°C
+/-5%
0.1-9.1
Ω
E24
100 ppm/°C
+/- 5% and 1%
-55 to +155 °C
2000 Volts DC
ΔR
+/- (1.0 %+0.05
Ω)
ΔR
+/- (1.0 %+0.05
Ω)
ΔR
+/- (1.0 %+0.05
Ω)
Min 95% coverage
Over 1000 MΩ
ΔR
+/- (0.25 %
Ω)
10-220
Ω
E24
50 ppm/°C
+/- 1%
Conditions
@ Tab Temp < 25°C
Free air.
From hot spot to tab.
Extended resistance range to 51KΩ available
Additional 2.0Ω and 5.0
Ω
also available
For -55 to +155°C
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.
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© TT electronics plc
04.12
20W TO126 High Power Resistors
MHP 20 S
Electrical Performance
Electrical Performance
Derating Curve
Rating Power (W), with 2.8°C/W heat sink.
MHP 20S 100 F
(°C)
140
120
100
80
60
40
Flange Temperature Rise
MHP 20S 100 F
10
8
6ㅤㅤㅤㅤㅤ
4
2
0
-50
+25°C
+155°C
20
0
ㅤ0
10
Power (W)
20
0
50
100
150
Flange Temperature (°C)
200
Frequency Characteristics
Impedance (Ω)
1K
MHP 20S 1K0 F
MHP 20S 101 F
MHP 20S 500 F
Pulse Energy Durability
Pulse peak power (W)
100K
10K
1K
100
20W
10
10n
MHP20S-100F
100
Tentative continuous-pulse power allowance at duty 0.01
Load life test will be necessary in actual equipment.
Because curve will be changed by resistance, repetition,
duty and operating temperature.
200W
10
MHP 20S 5R0 F
100n 1 u
10u
1
100u
1m 10m 100m
Pulse width (seconds)
1
10
100
100K
1M
10M
Frequency(Hz)
100M
1G
10G
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© TT electronics plc
04.12
20W TO126 High Power Resistors
MHP 20 S
Dimensions
MHP100
mm
± mm
A
8.5
± 0.2
B
12.0
± 0.2
C
3.1
± 0.2
D
3.1
± 0.1
E
17.0
± 1.0
F
3.2
± 0.5
G
3.8
± 0.2
H
1.75
± 0.1
J
0.5
± 0.05
K
0.6
± 0.05
L
1.4
± 0.05
M
5.08
± 0.1
Ordering Information
MHP 20S 500
Model
Power Rating
0.1Ω : 0R100
50
Ω
: 500 First two digits significant, last digit: number of trailing zeros
F
Tolerance
J = 5% Tol
F = 1% Tol
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© TT electronics plc
04.12
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