IRC Advanced Film Division
General Note
IRC reserves the right to make changes in product specification without notice or liability.
All information is subject to IRC’s own data and is considered accurate at time of going to print. A subsidiary of
TT electronics plc
• Corpus Christi Texas 78411 USA
© IRC Advanced Film Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Email: afdsales@irctt.com • Website: www.irctt.com MHP TO220 Series Issue November 2007
MHP TO-220 Series
Power Resistor
• TO-220 housing
• Low inductance (<50nH)
• Available in 20W, 35W, or 50W
• High stability film resistance elements
• RoHS compliant
IRC’s MHP series resistors satisfy demanding applications for accurate
and stable power resistors housed in the convenient TO-220 case. The
resistance element is isolated from the mounting tab by an alumina ceramic layer, providing very low ther-
mal resistance and ensuring high insulation resistance between terminals and tab. The non-inductive design
makes these products especially useful in high frequency and high speed pulse applications.
MHP Series
Electrical Data
Type Power Rating 4Voltage
Rating 5
Thermal
Resistance
Resistance
Range3Tolerances Nominal
Resistance
Temperature
Coefficient
Heatsink1Free Air2Min Max
MHP-20
20W 1W 500V 5.9°C/W
10W220W±1% E24 ±100 ppm/°C
0.1W9.1W±1%, ±5% E12 ±100 ppm/°C
0.01W0.09W ±5% E6 ±250 ppm/°C
10W 1W 500V 5.9°C/W 220W51KW±1%, ±5% E12 ±100 ppm/°C
MHP-35
35W 1W 500V 3.3°C/W
10W220W±1% E24 ±100 ppm/°C
0.1W9.1W±1%, ±5% E12 ±100 ppm/°C
0.01W0.09W±5% E6 ±250 ppm/°C
20W 1W 500V 3.3°C/W 220W51KW±1%, ±5% E12 ±100 ppm/°C
MHP-50
50W 1W 500V 2.3°C/W
10W220W±1% E24 ±100 ppm/°C
0.1W9.1W±1%, ±5% E12 ±100 ppm/°C
0.01W0.09W ±5% E6 ±250 ppm/°C
30W 1W 500V 2.3°C/W 220W51KW±1%, ±5% E12 ±100 ppm/°C
1Power rating based on 25°C flange temperature; 2Power rating based on 25°C ambient temperature; 3Consult factory for higher or lower values; 4Max current 25 amps; 5Max voltage 500V or P x R
Frequency Data
1K
100
10M
100K
10K
10
10K
Impedance (W)
Frequency (Hz)
1M 100M 1G
1K
100
1m
10µ
1µ
10
10K
Peak Watts
Pulse Width (seconds)
100µ10m 100m
Pulse Data
One time rectangular pulse
MHP20LF 10K0
MHP20LF 1K00
MHP20LF 100R
MHP20LF 22R0
MHP20LF 50R0
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MHP TO-220 Series Issue November 2007
IRC Advanced Film Division
• Corpus Christi Texas 78411 USA
© IRC Advanced Film Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Email: afdsales@irctt.com • Website: www.irctt.com
IRC Advanced Film Division
MHP TO-220 Series
Power Resistor
Physical Data
Dimension Inches (nom) Millimeters
A0.417 10.1 ±.2
B0.590 15.0 ±0.2
C0.177 4.5 ±0.2
ØD 0.122 3.1 ±0.1
E0.610 15.5 ±1
F0.157 REF 4.0 ±0.5
G0.118 3 ±0.2
H0.108 2.75 ±0.2
J0.020 0.5 ±0.05
K0.029 0.75 ±0.05
Lead Material Tinned Copper L0.055 1.4 ±0.05
Substrate Material 96% Alumina Ceramic M0.200 5.08 ±0.1
Resistor
construction
Proprietary film conductors and
proprietary alloy resistors N0.059 1.5
Test MAX DR
Thermal Shock MIL-STD-202 Method 107 Condition F ±0.30% +50mW
Moisture Resistance MIL-STD-202 Method 106 ±1.0% +50mW
Vibration MIL-STD-202 Method 204 Condition D ±0.25% +50mW
Load Life MIL-STD-202 Method 108 1,000 Hours ±1.00% +50mW
Resistance To Solder Heat MIL-STD-202 Method 210 Condition B ±0.25% +50mW
Dielectric Withstanding Voltage MIL-STD-202 Method 301 2200 volts DC or 1500 volts AC; 60 seconds
Insulation Resistance (between terminal and tab)
MIL-STD-202 Method 301 >1000MW
Solderability MIL-STD-202 Method 208 > 95% coverage
Operating Temperature Range -55°C to +155°C
Environmental Data
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MHP TO-220 Series Issue November 2007
IRC Advanced Film Division
• Corpus Christi Texas 78411 USA
© IRC Advanced Film Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Email: afdsales@irctt.com • Website: www.irctt.com
IRC Advanced Film Division
MHP TO-220 Series
Power Resistor
For additional information or to discuss your specific requirements, please contact our
Applications Team using the contact details below.
Ordering Data
Prefix TFP - MHP20LF - 1R50 - J
Style
MHP20LF = 20W, TO-220 style power resistor
MHP35LF = 35W, TO-220 style power resistor
Resistance Code
3-digit resistance code.
Ex: 10R0 = 10W, 1K00 = 1KW
Absolute Tolerance Code
J = ±5%; F = ±1%
Power Derating Data
50
155°
25°
10
100
% of Rated Power
Flange Temperature (°C)
