Datasheet

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1. Scope:
This specification for approval relates to Cement Fixed Resistors manufactured by
ROYALOHM 's specifications.
2. Type designation:
The type designation shall be in the following form:
( Ex.) PRW 5W J 1.2ȍ
Type Power Rating Resistance Nominal
Tolerance Resistance
3. Ratings:
Ratings shall be shown in the table 1.
Table 1
Type
Rated Power
Rated Ambient Temp.
Operating Temp. Range
Resistance Tolerance
Wire-wound Resistance range
3.1 Power rating:
Resistors shall have a power rating based on continuous full load operation at an
ambient temperature of 70 к
3.2 Voltage rating:
Resistors shall have a rated direct-current (DC) continuous working voltage or an approximate
sine-wave root-mean-square (RMS) alternating-current (AC) continuous working voltage at commercial
line frequency and waveform curresponding to the power rating , as determined from the
following formula:
RCWV =
Ѕ P x R
Were : RCWV = Rated DC or RMS AC continuous working voltage at commercial-line frequency and
waveform (volt)
P = Power Rating (watt)
R = Nominal Resistance (ohm)
Part No.: PRW05WJWxxxB00 Customer: CONRAD
PRW
0.1ȍ ~ 47ȍ
5W at 70к
70 к
-55к --- +155к
± 5%
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