PWR SERIES
GENERAL PURPOSE STAND-UP
POWER WIREWOUND RESISTOR
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•
•
•
•
3, 5, 7 and 10 watts
0.1 ohm to 18K ohm range
Radial leads for PC mount
TC's from 300 ppm/°C to +5500 ppm/°C
Lead Free ROHS Compliant Construction Available
Fireproof high
temp.
ceramic case with
Inorganic
fireproof
encapsulant
Alloy resistance wire on
fiberglass substrate
SPECIFICATIONS:
- Power Rating: 3,5,7, and 10 watts
- Resistance Range:
3 watt: 0.1Ω to 7.5K 7 watt 0.1Ω to 18K
5 watt: 0.1Ω to 8.5K 10 watt 0.18Ω to 18K
- Tolerance: ±5% and ±10%
(refer to PWRG for tolerances less than 5% pg. 129)
- Flameproof inorganic construction
- EIA RS-344, insulated fixed wirewound resistors
DIMENSIONS (Inches and (mm)):
IRC Type
A
0.475 ±0.030
(12.0 ±0.8)
0.500 ±0.030
(12.7 ±0.8)
0.500 ±0.030
(12.7 ±0.8)
0.630 ±0.032
(16.0 ±0.81)
B
0.320 ±0.030
(8.1 ±0.8)
0.350 ±0.030
(8.8 ±0.8)
0.350 ±0.030
(8.8 ±0.8)
0.510 ±0.032
(13.2 ±0.81)
C
1.00 ±0.030
(25.4 ±0.8)
1.00 ±0.030
(25.4 ±0.8)
1.50 ±0.032
(38.1 ±0.81)
1.39 ±0.032
(35.3 ±0.81)
D
0.200 ±0.062
(5.08 ±1.6)
0.200 ±0.062
(5.08 ±1.6)
0.200 ±0.062
(5.08 ±1.6)
0.290 ±0.062
(7.4 ±1.6)
E
0.175 ±0.062
(4.44 ±1.6)
0.175 ±0.062
(4.44 ±1.6)
0.175 ±0.062
(4.44 ±1.6)
0.250 ±0.062
(6.4 ±1.6)
LD
0.036 ±0.002
(0.91 ±0.05)
0.036 ±0.002
(0.91 ±0.05)
0.036 ±0.002
(0.91 ±0.05)
0.036 ±0.002
(0.91 ±0.05)
PWR-3
PWR-5
PWR-7
PWR-10
POWER DERATING:
HOT SPOT TEMPERATURE
RISE AT 25°C
Hot Spot Temperature (°C)
HOW TO ORDER:
Sample Part No.:
PWR 10 12K 10% LF
Type
Power
Range
Tolerance
% Rated Load
% Rated Power
Ambient Temperature
Lead Free Construction
General Note
IRC reserves the right to make changes in product specification without notice or liability.
All information is subject to IRC’s own data and is considered accurate at time of going to print.
WIREWOUND AND FILM TECHNOLOGIES DIVISION
A subsidiary of
TT electronics plc
Issue Preliminary
0106
736 Greenway Road • Boone, North Carolina 28607-1860 • Tel: 828-264-8861 • Fax: 828-264-8866 • www.irctt.com
