ISO-9001
Registered
GENERAL PURPOSE STAND-UP POWER
WIREWOUND RESISTOR
Fireproof high temp.
ceramic case with
stand-off
PWR
SERIES
•
•
•
•
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
Inorganic fireproof
encapsulant
Alloy resistance wire on
fiberglass substrate
Manufactured in Barbados
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. 107)
- Flameproof inorganic construction
- EIA RS-344, insulated fixed wirewound resistors
DIMENSIONS
(Inches and (mm)):
A
B
C
Meniscus
0.080
±0.032
permitted to
bottom of feet
LD
0.170
±0.062
D
E
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:
100
80
% Rated Load
60
40
20
00
50
100
150
200
250
25
85
PWR-3, 5
PWR-7, 10
HOT SPOT TEMPERATURE
RISE AT 25°C
Hot Spot Temperature (°C)
300
HOW TO ORDER:
Sample Part No.:
PWR 10 12K 10%
200
PWR-7, 10
PWR-3, 5
100
Type
Power
Range
0
0
20
40
Ambient Temperature (°C)
% Rated Power
60
80
100
120
Tolerance
WIRE AND FILM TECHNOLOGIES
736 Greenway Road · PO Box 1860
·
Boone, North Carolina 28607-1860
·
Tel: 704-264-8861
·
Fax: 704-264-8865
1
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