WMHP Series

Features

AEC-Q200 (WMHP20 & WMHP35)

TO-220 & TO-247 standard power packages

Very low thermal resistance

Non-inductive thick film technology

20 to 100 watt high power resistors

Single screw mounting to heatsink

Suitable for high frequency / fast pulse use

Heatsink Mount High Power Resistors

WMHP20

WMHP35 WMHP50

WMHP100

Package style

TO-220

TO-247

20

35

50

100

1.5

2.5

3

3.5

Without heatsink, in free air 25°C

350

700

dc or ac rms

Resistance range

ohms

R05 – 10K

R05 to 100K

Dielectric strength

volts

1800

ac rms for 60s

Working temperature range

°C

-65 to 150

-65 to 175

>10G

Between terminals and tab

Tolerances

%

≤1R0: ±5 >1R0: ±1, ±5

TCR

ppm/°C

≤R20: ±1000 >R20–3R0: ±300 >3R0-10R: ±100 >10R: ±50 25 to 105°C

Standard values

E24 preferred

Test

Performance

Load at Rated Power: 2000hrs at rated power

±∆R%

1

Short Term Overload:

±∆R%

0.5

Damp Heat with Load:

±∆R%

1

Thermal Shock: -65°C/150°C, 100cycles

±∆R%

0.3

Terminal Strength: 2.4N pull test

±∆R%

0.2

WMHP Series

TO-220 & TO-247 standard power packages

Very low thermal resistance

Tailored heatsink WMHP-HS available

Suitable for high frequency / fast pulse use

Electrical Data

Physical Data

Performance Data

Heatsink Mount High Power Resistors

Resistors

Dimensions (mm) & Weight (g)

TO-220

TO-247

A

10.16 ±0.25

15.75 ±0.26

B

15 ±0.3

20.7 ±0.26

C

4.6 ±0.2

4.95 ±0.26

D

3.85 ±0.15

3.63 ±0.1

E

13.75 ±0.5

14.48 ±1.27

F

4 max

2.79 ±0.76

G

5.08 ±0.25

3.63 ±0.18

H

0.78 ±0.08

1.52 ±0.1

J

1.3 ±0.1

10.16 ±0.26

K

6.4 ±0.25

5.33 ±0.26

L

0.51 ±0.15

0.81 ±0.26

M

2.27 ±0.25

2.41 ±0.26

Wt

2.0 nom

3.7 nom

TO-220

TO-247

BI Technologies IRC Welwyn

09.17

General Note

All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.

© TT Electronics plc

www.ttelectronics.com/resistors

All parts are Pb-free and comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)

All parts are Pb-free and comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)

12.22

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.

© TT Electronics plc

www.ttelectronics.com/resistors

BI Technologies IRC Welwyn