• 4222 South Staples Street • Corpus Christi Texas 78411 USA

Wire and Film Technologies Division

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

BD

CL

BL

0.032 (0.81) DIA.*

1.50 ± 0.125

(38.1 ± 3.2)

Dimensions (Inches and (mm))

IRC Type

Body Length - BL

Body Diameter - BD

Clean Lead to Clean Lead - CL

CMH - 1/4

0.275 ± 0.031 (6.98 ± 0.79)

0.088 ± 0.010 (2.22 ± 0.25)

0.400 (10.16)

CMH - 1/2

0.400 ± 0.031 (10.16 ± 0.79)

0.138 ± 0.016 (3.51 ± 0.41)

0.525 (13.34)

CMH - 1

0.690 ± 0.062 (17.53 ± 1.57)

0.297 ± 0.031 (7.54 ± 0.79)

0.900 (22.86)

CMH - 2

1.062 ± 0.062 (26.97 ± 1.57)

0.297 ± 0.031 (7.54 ± 0.79)

1.250 (31.75)

CMH - 3

2.062 ± 0.062 (52.37 ± 1.57)

0.297 ± 0.031 (7.54 ± 0.79)

2.250 (57.15)

CMH - 5

3.062 ± 0.062 (77.77 ± 1.57)

0.297 ± 0.031 (7.54 ± 0.79)

3.250 (82.55)

*CMH 1/4 leads are

0.025 (0.64) in diameter

Power Derating Curve

80

100

120

140

160

180

100

90

80

70

60

50

40

30

20

10

0

Ambient Temperature (°C)

Temperature Rise Chart

Temperature Rise (°C)

100

90

80

70

60

50

40

30

20

10

0

0

10

20

30

40

50

60

70

80

90

CMH 1/4

CMH 1/2

CMH 1

CMH 2-3

CMH 5

IRC Advanced Film Division

Physical Data

Thick Film High Voltage/

High Reliability MIL-Approved

Metal Glaze™ Resistors

CMH Series Issue September 2008 Sheet 2 of 3