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Low noise and negligible voltage
coefficient
Electrical Data
RC55
COMMERCIAL
Power rating at 70掳C
Resistance range
Limiting element voltage
Isolation voltage
TCR (20 to +70掳C) & codes
Resistance tolerance
watts
ohms
volts
volts
ppm/掳C
%
RC65
RC70
NOTES
0.25
0.5
1.0
1R to 4M
1R to 4M
1R to 10M
350
350
500
500
500
700
5(V), 10(T), 15(Y), 25(D), 50(C) & 100(Z)
0.05(W), 0.1(B), 0.25(C), 0.5(D) & 1(F)
See resistance
restrictions
APPROVED CECC 40101-004
H
J
K
K
L
Power rating at 70掳C
watts 0.063
0.125
0.25
0.25
0.5
Resistance range
ohms 1R to 1M 1R to 1M 1R to 1M
10R to 1M
10R to 1M
Limiting element voltage
volts
200
200
250
250
350
Isolation voltage
volts
280
280
350
350
500
TCR & codes
ppm/掳C
15(Y), 25(D), 50(C) & 100(Z)
Resistance tolerance (code)
%
0.05(W), 0.1(B), 0.25(C), 0.5(D) & 1(F)
APPROVED CECC 40101-804
Power rating at 70掳C
watts
Resistance range
ohms
Limiting element voltage
volts
Isolation voltage
volts
TCR & codes
ppm/掳C
Resistance tolerance (code)
%
Standard values
Thermal impedance
Ambient temperature range
A
0.125
1R to 1M
200
280
B
0.25
1R to 1M
250
350
B
C
0.25
0.5
10R to 1M
10R to 1M
250
350
350
500
15(T), 25(E) & 50(C)
0.05(W), 0.1(B), 0.25(C), 0.5(D) & 1(F)
E24, E96 preferred
70
-55 to +155
See resistance
restrictions
See resistance
restrictions
Any value
to order
掳C/watt
掳C
110
60
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
All information is subject to Welwyn鈥檚 own data and is considered accurate at time of going to print.
漏 Welwyn Components Limited
Bedlington, Northumberland NE22 7AA, England Tel: 01670 822181 Fax: 01670 829465 Web: http://www.Welwyn-TT.co.uk
Issue A 07/99
173
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