HIGH POWER WIRE WOUND RESISTOR
HM Series: Metal-Clad, High Wattage
ELECTRICAL SPECIFICATION
Characteristics
Resistance and Tolerance
Resistance nominal
1 <R
1 >R
Limits
Resistance Tolerance
±5% (J)
±10% (K)
Temperature coefficient
Power rating load
Short-time overload
Insulation resistance
Dielectric withstanding voltage
±200ppm/°C max.
R/R<±(1%+0.05 )
(Temperature) 350°C max
1000% rated power 5 seconds
R/R<±(2%+0.05 )
500Vdc 100M
min
2000Vac 1 minute
ELECTRICAL CURVES
Power Derating Curve
120
300
Temperature Rise
100
250
80
(°C) Temperatures Rise
(%) Derating Curve
200
60
150
40
100
20
50
0
-50
0
50
100
150
200
0
0
25
50
75
100
(°C) Ambient Temperature
(%) Percent Rated Load
RFE International
• Tel:(949) 833-1988 • Fax:(949) 833-1788 • E-Mail Sales@rfeinc.com
C2E04
REV 2007.04.12
RFE [ RFE INTERNATIONAL ]
