RC Datasheet, PDF (1/3 Pages) Welwyn Components Limited – Precision Metal Film Resistors

Precision Metal
Film Resistors
RC series
• CECC released products with low
TCRs over a wide resistance range
• ^{Resistance tolerance down to 0.05%}
• ^{Express delivery available}
• ^{Low noise and negligible voltage coefficient}
Welwyn Components
Electrical Data
Commercial
Power rating at 70°C
Resistance range
Limiting element voltage
Isolation voltage
TCR (20 to +70°C) & codes
Resistance tolerance
watts
ohms
volts
volts
ppm/°C
%
RC55
RC65
RC70
0.25
1R to 4M
350
500
0.5
1R to 4M
350
500
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)
1.0
1R to 10M
500
700
Approved CECC 40101-004
H
J
K
K
Power rating at 70°C
watts 0.063 0.125 0.25
0.25
Resistance range
ohms 1R to 1M 1R to 1M 1R to 1M
10R to 1M
Limiting element voltage
volts 200 200 250
250
Isolation voltage
volts 280 280 350
350
TCR & codes
ppm/°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)
L
0.5
10R to 1M
350
500
Approved CECC 40101-804
Power rating at 70°C
watts
Resistance range
ohms
Limiting element voltage
volts
Isolation voltage
volts
TCR & codes
ppm/°C
Resistance tolerance (code)
%
A
0.125
1R to 1M
200
280
B
B
0.25
0.25
1R to 1M
10R to 1M
250
250
350
350
15(T), 25(E) & 50(C)
0.05(W), 0.1(B), 0.25(C), 0.5(D) & 1(F)
C
0.5
10R to 1M
350
500
Standard values
E24, E96 preferred
Thermal impedance
°C/watt
110
70
60
Ambient temperature range
°C
-55 to +155
Notes
See resistance
restrictions
See resistance
restrictions
See resistance
restrictions
Any value
to order
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
© Welwyn Components Limited · Bedlington, Northumberland NE22 7AA, UK
Telephone: [phone] · Facsimile: [phone] · Email: [e-mail] · Website: www.welwyn-tt.com
A subsidiary of
TT electronics plc
Issue B · 03.02
173