General Purpose Axial Leaded
Power Wirewound Resistor
PW Series
•
•
•
•
•
0.10Ω to 30KΩ
2 watts to 25 watts
±10% or ±5% tolerance
TC’s from 300 ppm/°C to +5500 ppm/°C
Lead free, RoHS compliant construction available
Fireproof high
temperature ceramic
case- stand offs
optional
Alloy resistance
wire on fiberglass
substrate
Inorganic
fireproof
encapsulant
Automatically
clamped termination
lead assembly
Electrical Data
IRC
Type
Power Rating
@ 25°C
(watts)
Standard
Resistance
Range
(ohms)
0.15 to 2.4K
0.1 to 7.5K
0.1 to 8.5K
0.1 to 18K
0.18 to 30K
0.18 to 30K
0.18 to 22K
0.27 to 18K
0.27 to 18K
Standard Temperature
Coefficient
+0.06%/°C
over R range
0.15 to 0.99
0.1 to 0.99
0.1 to 0.99
0.1 to 0.99
0.18 to 0.99
0.18 to 0.99
0.18 to 0.99
0.27 to 1.3
0.27 to 1.3
+0.03%/°C
over R range
1.0 to 2.4K
1.0 to 7.5K
1.0 to 8.5K
1.0 to 18K
1.0 to 30K
1.0 to 30K
1.0 to 22K
1.5 to 12K
1.5 to 10K
Special Temperature Coefficients
+0.55%/°C
over R range
0.1 to 30
0.1 to 86
0.1 to 68
0.1 to 150
0.1 to 240
0.1 to 240
0.1 to 200
0.15 to 360
0.15 to 300
+0.45%/°C
over R range
0.24 to 130
0.1 to 270
0.1 to 300
0.15 to 680
0.24 to 1100
0.24 to 1100
0.24 to 1100
0.36 to 1800
0.36 to 1200
+0.25%/°C
over R range
1.0 to 10
0.24 to 20
0.27 to 22
1.0 to 51
1.0 to 82
1.0 to 82
1.0 to 70
1.0 to 120
1.5 to 100
PW-2
PW-3
PW-5
PW-7
PW-10
PW-15
PW-18
PW-22
PW-25
2
3
5
7
10
15
18
22
25
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.
Wire and Film Technologies Division
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
A subsidiary of
TT electronics plc
PW Series Issue December 2008 Sheet 1 of 3
General Purpose Axial Leaded
Power Wirewound Resistor
Physical Data
Standard Configuration
Alternate Configuration
0.125” Max.
LL
L
D
W
E
H
F
IRC
Type
PW-2
PW-3
PW-5
PW-7
PW-10
PW-15
PW-18
PW-22
PW-25
* Copper Clad Steel
L ±0.03 (0.8)
0.69 (17.5)
0.88 (22.4)
0.88 (22.4)
1.39 (35.3)
1.88 (47.8)
1.88 (47.8)
1.88 (47.8)
2.50 (63.5)
2.50 (63.5)
W ±0.03 (0.8)
0.25 (6.35)
0.31 (7.87)
0.38 (9.65)
0.38 (9.65)
0.38 (9.65)
0.50 (12.7)
0.50 (12.7)
0.50 (12.7)
0.50 (12.7)
H ±0.03 (0.8)
0.25 (6.35)
0.31 (7.87)
0.35 (8.89)
0.35 (8.89)
0.35 (8.89)
0.50 (12.7)
0.50 (12.7)
0.50 (12.7)
0.50 (12.7)
D Dia. ±0.002
0.032 (0.8)
0.036 (0.91)
0.036 (0.91)
0.036 (0.91)
0.036 (0.91)
0.036 (0.91)
0.036 (0.91)
0.040 (1.0)*
0.040 (1.0)*
E ±0.03 (0.8)
0.31 (7.87)
0.38 (9.65)
0.41 (10.4)
0.47 (11.9)
0.47 (11.9)
0.63 (16.0)
0.63 (16.0)
0.63 (16.0)
0.63 (16.0)
LL min.
1.44 (36.6)
1.44 (36.6)
1.50 (38.1)
1.50 (38.1)
1.50 (38.1)
1.50 (38.1)
1.50 (38.1)
1.50 (38.1)
1.50 (38.1)
F (ref.)
0.063
0.063
0.063
0.125
0.125
0.125
0.125
0.125
0.125
Wire and Film Technologies Division
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
PW Series Issue December 2008 Sheet 2 of 3
General Purpose Axial Leaded
Power Wirewound Resistor
Temperature Rise Chart
300
Temperature Rise (°C)
250
200
150
100
50
0
PW - 22, 25
PW - 15, 18
PW - 10
PW - 7
PW - 5
PW - 3
Power Derating Curve
100
80
PW - 3, 5, 7, 10
60
PW - 15, 18, 22, 25
25 40
85
PW - 2
Percent of Rated Load
40
20
0
0
0
20
40
60
80
100
120
50
Percent of Rated Load
100
150
200
Ambient Temperature
250
Ordering Data
Sample Part No.
IRC Type
Resistance Value
PW15
1202
K
LF
(standard EIA values)
Tolerance
J = 5%, K = 10%
RoHS Indicator
LF indicated RoHS compliance
Wire and Film Technologies Division
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
PW Series Issue December 2008 Sheet 3 of 3
电子竞赛
