Datasheet

3.1 Power Derating Curve: Operating Temperature Range ： - 55 ~+170 ℃
For resistors operated in ambient temperatures above 70 ℃ , power rating shall be
derated in accordance with figure below.
Rating Power (%)
Ambient Temperature( )℃
100
80
60
40
20
0
0 25 50 75 100 125
150-55
170
70
3.2 Rating Current:
Rated Current: The resistor shall have a DC continuous working current or a
RMS(Root Mean Square). AC continuous working current at commercial-line
frequency and wave form corresponding to the power rating, as determined from the
following:
I= Rating current (A)
P= Rating power (w)
R= Nominal resistance (Ω)
I = P/R
3
/
13
Page No.
2011
/
10
/
19
Released Date
IE-SP-022
Document No.
Metal Alloy Low-Resistance
Resistor Specifications
RALEC
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60
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