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

Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com

MHP TO220 Series Issue May 2009

MHP TO-220 Series

Power Resistor

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

Voltage

Thermal

Resistance

Resistance

Range

Tolerances

Nominal

Resistance

Typ. Temperature

Min

Max

MHP-20

20W

2.25W

500V

5.9°C/W

0.01Ω

0.09Ω

±5%

E6

±250 ppm/°C

0.1Ω

9.1Ω

±1%, ±5%

E24

±150 ppm/°C

10Ω

51KΩ

±1%, ±5%

E24

±50 ppm/°C

MHP-35

35W

2.25W

500V

3.3°C/W

0.01Ω

0.09Ω

±5%

E6

±250 ppm/°C

0.1Ω

9.1Ω

±1%, ±5%

E24

±150 ppm/°C

10Ω

51KΩ

±1%,±5%

E24

±50 ppm/°C

MHP-50

50W

2.25W

500V

2.3°C/W

0.01Ω

0.09Ω

±5%

E6

±250 ppm/°C

0.1Ω

9.1Ω

±1%, ±5%

E24

±150 ppm/°C

10Ω

51KΩ

±1%,±5%

E24

±50 ppm/°C

1

Maximum current 25 amps

2

Power rating based on 25°C tab temperature

3

Power rating based on 25°C ambient temperature

4

Maximum voltage 500V or P x R

5

See TCR Chart for resistance values below 1ohm

√

Frequency Characteristics

10K

1K

100

10K

100K

1M

10M

100M

1G

Frequency(Hz)

Pulse Energy Durability

10K

1K

100

10

Pulse Width (seconds)

1µ

10µ

100µ

1m

10m

100m

MHP20LF 10K

MHP20LF 1K00

MHP20LF 100R

MHP20LF 50R0

MHP20LF 22R0

10

MHP50

MHP35

MHP20

Safety Zone

Damage Level