KOA SPEER ELECTRONICS, INC.
SS-239 R4
5-2 Voltage Rating
Resistors shall have a rated direct-current (DC)
continuous working voltage or approximate
sine-wave root-mean-square (RMS) continuous
working voltage at commercial-line frequency
and waveform corresponding to the power rating,
as determined from the following formula:
Where:
E = Rated voltage (V)
E =
√
P x R P = Rated power (W)
R = Nominal resistance (Ω)
In no case shall be rated DC or R.M.S. continuous
working voltage be greater than the applicable
maximum value.
6. Body and Marking
Coating
Color
Marking
Color
Type
SR73
SR73
Tolerance
D ( 0.5ꢀ)
F ( 1ꢀ)
Indigo
Indigo
White/ 4 digit
White/ 3 digit
G ( 2ꢀ)
J ( 5ꢀ)
Marking: a effective number and a multiplier. R means a decimal point.
7. Marking Method
3 Digit
R20
4 Digit
This character indicate Ω unit and
D, F
G, J
4 digit
3 digit
express 4 effective numbers.
R means a decimal point.
0.2 Ω
4.7 Ω
R200
4R70
This character indicate Ω unit and
express 3 effective numbers.
R means a decimal point.
4R7
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Bolivar Drive
P.O. Box 547
Bradford, PA 16701
USA
814-362-5536
Fax 814-362-8883
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
KOA [ KOA SPEER ELECTRONICS, INC. ]
