General Purpose Axial Leaded
Power Wirewound Resistor
PW Axial Series
0.10Ωto30KΩ
3wasto25was
±10%or±5%tolerance
TC’s from300ppm/°Cto+5500ppm/°C
Leadfree,RoHScompliantconstruconavailable
Resistors
06.18
General Note
TT Electronics reserves the right to make changes in product specication without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
© TT Electronics plc
www.ttelectronics.com/resistors
BI Technologies IRC Welwyn
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
General Purpose Axial Leaded
Power Wirewound Resistor
Type
Power Rating
@ 25°C
(watts)
Standard
Resistance
Range
(ohms)
Standard Temperature
Coefficient Special Temperature Coefficients
+0.06%/°C
over R range
+0.03%/°C
over R range
+0.55%/°C
over R range
+0.45%/°C
over R range
+0.25%/°C
over R range
PW-2 20.15 to 2.4K 0.15 to 0.99 1.0 to 2.4K 0.1 to 30 0.24 to 130 1.0 to 10
PW-3 3 0.1 to 7.5K 0.1 to 0.99 1.0 to 7.5K 0.1 to 86 0.1 to 270 0.24 to 20
PW-5 5 0.1 to 8.5K 0.1 to 0.99 1.0 to 8.5K 0.1 to 68 0.1 to 300 0.27 to 22
PW-7 7 0.1 to 18K 0.1 to 0.99 1.0 to 18K 0.1 to 150 0.15 to 680 1.0 to 51
PW-10 10 0.18 to 30K 0.18 to 0.99 1.0 to 30K 0.1 to 240 0.24 to 1100 1.0 to 82
PW-15 15 0.18 to 30K 0.18 to 0.99 1.0 to 30K 0.1 to 240 0.24 to 1100 1.0 to 82
PW-18 18 0.18 to 22K 0.18 to 0.99 1.0 to 22K 0.1 to 200 0.24 to 1100 1.0 to 70
PW-22 22 0.27 to 18K 0.27 to 1.3 1.5 to 12K 0.15 to 360 0.36 to 1800 1.0 to 120
PW-25 25 0.27 to 18K 0.27 to 1.3 1.5 to 10K 0.15 to 300 0.36 to 1200 1.5 to 100
Electrical Data
Fireproof high
temperature ceramic
case- stand offs
optional
Alloy resistance
wire on fiberglass
substrate
Inorganic
fireproof
encapsulant
Automatically
clamped termination
lead assembly
Type L ±0.03 (0.8) W ±0.03 (0.8) H ±0.03 (0.8)
D Dia. ±0.002 (0.05)
E ±0.03 (0.8) LL min. F (ref.)
(1.6)
(1.6)
(1.6)
(3.18)
(3.18)
(3.18)
(3.18)
(3.18)
(3.18)
PW-2
PW-3
PW-5
PW-7
PW-10
PW-15
PW-18
PW-22
PW-25
Standard Configuration
L
D
LL
0.125” Max.
H
W
Alternate Configuration
E
F
General Purpose Axial Leaded
Power Wirewound Resistor
PW Axial Series
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
© TT electronics plc
1.14
· 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
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
General Purpose Axial Leaded
Power Wirewound Resistor
Type
Power Rating
@ 25°C
(watts)
Standard
Resistance
Range
(ohms)
Standard Temperature
Coefficient Special Temperature Coefficients
+0.06%/°C
over R range
+0.03%/°C
over R range
+0.55%/°C
over R range
+0.45%/°C
over R range
+0.25%/°C
over R range
PW-2 20.15 to 2.4K 0.15 to 0.99 1.0 to 2.4K 0.1 to 30 0.24 to 130 1.0 to 10
PW-3 3 0.1 to 7.5K 0.1 to 0.99 1.0 to 7.5K 0.1 to 86 0.1 to 270 0.24 to 20
PW-5 5 0.1 to 8.5K 0.1 to 0.99 1.0 to 8.5K 0.1 to 68 0.1 to 300 0.27 to 22
PW-7 7 0.1 to 18K 0.1 to 0.99 1.0 to 18K 0.1 to 150 0.15 to 680 1.0 to 51
PW-10 10 0.18 to 30K 0.18 to 0.99 1.0 to 30K 0.1 to 240 0.24 to 1100 1.0 to 82
PW-15 15 0.18 to 30K 0.18 to 0.99 1.0 to 30K 0.1 to 240 0.24 to 1100 1.0 to 82
PW-18 18 0.18 to 22K 0.18 to 0.99 1.0 to 22K 0.1 to 200 0.24 to 1100 1.0 to 70
PW-22 22 0.27 to 18K 0.27 to 1.3 1.5 to 12K 0.15 to 360 0.36 to 1800 1.0 to 120
PW-25 25 0.27 to 18K 0.27 to 1.3 1.5 to 10K 0.15 to 300 0.36 to 1200 1.5 to 100
Electrical Data
Fireproof high
temperature ceramic
case- stand offs
optional
Alloy resistance
wire on fiberglass
substrate
Inorganic
fireproof
encapsulant
Automatically
clamped termination
lead assembly
Type L ±0.03 (0.8) W ±0.03 (0.8) H ±0.03 (0.8)
D Dia. ±0.002 (0.05)
E ±0.03 (0.8) LL min. F (ref.)
(1.6)
(1.6)
(1.6)
(3.18)
(3.18)
(3.18)
(3.18)
(3.18)
(3.18)
PW-2
PW-3
PW-5
PW-7
PW-10
PW-15
PW-18
PW-22
PW-25
Standard Configuration
L
D
LL
0.125” Max.
H
W
Alternate Configuration
E
F
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
General Purpose Axial Leaded
Power Wirewound Resistor
Type
Power Rating
@ 25°C
(watts)
Standard
Resistance
Range
(ohms)
Standard Temperature
Coefficient Special Temperature Coefficients
+0.06%/°C
over R range
+0.03%/°C
over R range
+0.55%/°C
over R range
+0.45%/°C
over R range
+0.25%/°C
over R range
PW-2 20.15 to 2.4K 0.15 to 0.99 1.0 to 2.4K 0.1 to 30 0.24 to 130 1.0 to 10
PW-3 3 0.1 to 7.5K 0.1 to 0.99 1.0 to 7.5K 0.1 to 86 0.1 to 270 0.24 to 20
PW-5 5 0.1 to 8.5K 0.1 to 0.99 1.0 to 8.5K 0.1 to 68 0.1 to 300 0.27 to 22
PW-7 7 0.1 to 18K 0.1 to 0.99 1.0 to 18K 0.1 to 150 0.15 to 680 1.0 to 51
PW-10 10 0.18 to 30K 0.18 to 0.99 1.0 to 30K 0.1 to 240 0.24 to 1100 1.0 to 82
PW-15 15 0.18 to 30K 0.18 to 0.99 1.0 to 30K 0.1 to 240 0.24 to 1100 1.0 to 82
PW-18 18 0.18 to 22K 0.18 to 0.99 1.0 to 22K 0.1 to 200 0.24 to 1100 1.0 to 70
PW-22 22 0.27 to 18K 0.27 to 1.3 1.5 to 12K 0.15 to 360 0.36 to 1800 1.0 to 120
PW-25 25 0.27 to 18K 0.27 to 1.3 1.5 to 10K 0.15 to 300 0.36 to 1200 1.5 to 100
Electrical Data
Fireproof high
temperature ceramic
case- stand offs
optional
Alloy resistance
wire on fiberglass
substrate
Inorganic
fireproof
encapsulant
Automatically
clamped termination
lead assembly
Type L ±0.03 (0.8) W ±0.03 (0.8) H ±0.03 (0.8)
D Dia. ±0.002 (0.05)
E ±0.03 (0.8) LL min. F (ref.)
(1.6)
(1.6)
(1.6)
(3.18)
(3.18)
(3.18)
(3.18)
(3.18)
(3.18)
PW-2
PW-3
PW-5
PW-7
PW-10
PW-15
PW-18
PW-22
PW-25
Standard Configuration
L
D
LL
0.125” Max.
H
W
Alternate Configuration
E
F
General Purpose Axial Leaded
Power Wirewound Resistor
PW Axial Series
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
© TT electronics plc
1.14
· 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
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
General Purpose Axial Leaded
Power Wirewound Resistor
Type
Power Rating
@ 25°C
(watts)
Standard
Resistance
Range
(ohms)
Standard Temperature
Coefficient Special Temperature Coefficients
+0.06%/°C
over R range
+0.03%/°C
over R range
+0.55%/°C
over R range
+0.45%/°C
over R range
+0.25%/°C
over R range
PW-2 20.15 to 2.4K 0.15 to 0.99 1.0 to 2.4K 0.1 to 30 0.24 to 130 1.0 to 10
PW-3 3 0.1 to 7.5K 0.1 to 0.99 1.0 to 7.5K 0.1 to 86 0.1 to 270 0.24 to 20
PW-5 5 0.1 to 8.5K 0.1 to 0.99 1.0 to 8.5K 0.1 to 68 0.1 to 300 0.27 to 22
PW-7 7 0.1 to 18K 0.1 to 0.99 1.0 to 18K 0.1 to 150 0.15 to 680 1.0 to 51
PW-10 10 0.18 to 30K 0.18 to 0.99 1.0 to 30K 0.1 to 240 0.24 to 1100 1.0 to 82
PW-15 15 0.18 to 30K 0.18 to 0.99 1.0 to 30K 0.1 to 240 0.24 to 1100 1.0 to 82
PW-18 18 0.18 to 22K 0.18 to 0.99 1.0 to 22K 0.1 to 200 0.24 to 1100 1.0 to 70
PW-22 22 0.27 to 18K 0.27 to 1.3 1.5 to 12K 0.15 to 360 0.36 to 1800 1.0 to 120
PW-25 25 0.27 to 18K 0.27 to 1.3 1.5 to 10K 0.15 to 300 0.36 to 1200 1.5 to 100
Electrical Data
Fireproof high
temperature ceramic
case- stand offs
optional
Alloy resistance
wire on fiberglass
substrate
Inorganic
fireproof
encapsulant
Automatically
clamped termination
lead assembly
Type L ±0.03 (0.8) W ±0.03 (0.8) H ±0.03 (0.8)
D Dia. ±0.002 (0.05)
E ±0.03 (0.8) LL min. F (ref.)
(1.6)
(1.6)
(1.6)
(3.18)
(3.18)
(3.18)
(3.18)
(3.18)
(3.18)
PW-2
PW-3
PW-5
PW-7
PW-10
PW-15
PW-18
PW-22
PW-25
Standard Configuration
L
D
LL
0.125” Max.
H
W
Alternate Configuration
E
F
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
General Purpose Axial Leaded
Power Wirewound Resistor
Type
Power Rating
@ 25°C
(watts)
Standard
Resistance
Range
(ohms)
Standard Temperature
Coefficient Special Temperature Coefficients
+0.06%/°C
over R range
+0.03%/°C
over R range
+0.55%/°C
over R range
+0.45%/°C
over R range
+0.25%/°C
over R range
PW-2 20.15 to 2.4K 0.15 to 0.99 1.0 to 2.4K 0.1 to 30 0.24 to 130 1.0 to 10
PW-3 3 0.1 to 7.5K 0.1 to 0.99 1.0 to 7.5K 0.1 to 86 0.1 to 270 0.24 to 20
PW-5 5 0.1 to 8.5K 0.1 to 0.99 1.0 to 8.5K 0.1 to 68 0.1 to 300 0.27 to 22
PW-7 7 0.1 to 18K 0.1 to 0.99 1.0 to 18K 0.1 to 150 0.15 to 680 1.0 to 51
PW-10 10 0.18 to 30K 0.18 to 0.99 1.0 to 30K 0.1 to 240 0.24 to 1100 1.0 to 82
PW-15 15 0.18 to 30K 0.18 to 0.99 1.0 to 30K 0.1 to 240 0.24 to 1100 1.0 to 82
PW-18 18 0.18 to 22K 0.18 to 0.99 1.0 to 22K 0.1 to 200 0.24 to 1100 1.0 to 70
PW-22 22 0.27 to 18K 0.27 to 1.3 1.5 to 12K 0.15 to 360 0.36 to 1800 1.0 to 120
PW-25 25 0.27 to 18K 0.27 to 1.3 1.5 to 10K 0.15 to 300 0.36 to 1200 1.5 to 100
Electrical Data
Fireproof high
temperature ceramic
case- stand offs
optional
Alloy resistance
wire on fiberglass
substrate
Inorganic
fireproof
encapsulant
Automatically
clamped termination
lead assembly
Type L ±0.03 (0.8) W ±0.03 (0.8) H ±0.03 (0.8)
D Dia. ±0.002 (0.05)
E ±0.03 (0.8) LL min. F (ref.)
(1.6)
(1.6)
(1.6)
(3.18)
(3.18)
(3.18)
(3.18)
(3.18)
(3.18)
PW-2
PW-3
PW-5
PW-7
PW-10
PW-15
PW-18
PW-22
PW-25
Standard Configuration
L
D
LL
0.125” Max.
H
W
Alternate Configuration
E
F
General Purpose Axial Leaded
Power Wirewound Resistor
PW Axial Series
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
© TT electronics plc
1.14
· 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
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
General Purpose Axial Leaded
Power Wirewound Resistor
Type
Power Rating
@ 25°C
(watts)
Standard
Resistance
Range
(ohms)
Standard Temperature
Coefficient Special Temperature Coefficients
+0.06%/°C
over R range
+0.03%/°C
over R range
+0.55%/°C
over R range
+0.45%/°C
over R range
+0.25%/°C
over R range
PW-2 20.15 to 2.4K 0.15 to 0.99 1.0 to 2.4K 0.1 to 30 0.24 to 130 1.0 to 10
PW-3 3 0.1 to 7.5K 0.1 to 0.99 1.0 to 7.5K 0.1 to 86 0.1 to 270 0.24 to 20
PW-5 5 0.1 to 8.5K 0.1 to 0.99 1.0 to 8.5K 0.1 to 68 0.1 to 300 0.27 to 22
PW-7 7 0.1 to 18K 0.1 to 0.99 1.0 to 18K 0.1 to 150 0.15 to 680 1.0 to 51
PW-10 10 0.18 to 30K 0.18 to 0.99 1.0 to 30K 0.1 to 240 0.24 to 1100 1.0 to 82
PW-15 15 0.18 to 30K 0.18 to 0.99 1.0 to 30K 0.1 to 240 0.24 to 1100 1.0 to 82
PW-18 18 0.18 to 22K 0.18 to 0.99 1.0 to 22K 0.1 to 200 0.24 to 1100 1.0 to 70
PW-22 22 0.27 to 18K 0.27 to 1.3 1.5 to 12K 0.15 to 360 0.36 to 1800 1.0 to 120
PW-25 25 0.27 to 18K 0.27 to 1.3 1.5 to 10K 0.15 to 300 0.36 to 1200 1.5 to 100
Electrical Data
Fireproof high
temperature ceramic
case- stand offs
optional
Alloy resistance
wire on fiberglass
substrate
Inorganic
fireproof
encapsulant
Automatically
clamped termination
lead assembly
Type L ±0.03 (0.8) W ±0.03 (0.8) H ±0.03 (0.8)
D Dia. ±0.002 (0.05)
E ±0.03 (0.8) LL min. F (ref.)
(1.6)
(1.6)
(1.6)
(3.18)
(3.18)
(3.18)
(3.18)
(3.18)
(3.18)
PW-2
PW-3
PW-5
PW-7
PW-10
PW-15
PW-18
PW-22
PW-25
Standard Configuration
L
D
LL
0.125” Max.
H
W
Alternate Configuration
E
F
AllPb-freepartscomplywithEUDirecve2011/65/EUamendedby(EU)2015/863(RoHS3)AllPb-freepartscomplywithEUDirecve2011/65/EUamendedby(EU)2015/863(RoHS3)
General Purpose Axial Leaded
Power Wirewound Resistor
PW Axial Series
06.18
General Note
TT Electronics reserves the right to make changes in product specication without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
© TT Electronics plc
www.ttelectronics.com/resistors
BI Technologies IRC Welwyn
General Purpose Axial Leaded
Power Wirewound Resistor
PW Axial Series
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
© TT electronics plc
1.14
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Wire and Film Technologies Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
General Purpose Axial Leaded
Power Wirewound Resistor
Power Derating Curve
100
80
60
40
0 50 100 150 200 250
Ambient Temperature
20
0
85
PW - 3, 5, 7, 10
25 40
PW - 2
PW - 15, 18, 22, 25
Percent of Rated Load
Temperature Rise Chart
300
250
200
00 20 40 60 80 100 120
Temperature Rise (°C)
150
100
50
PW - 15, 18
PW - 10
PW - 7
PW - 5
PW - 3
Percent of Rated Load
PW - 22, 25
Sample Part No.
IRC Type
Resistance Value
(standard EIA values)
Tolerance
J = 5%, K = 10%
RoHS Indicator
LF indicated RoHS compliance
Ordering Data
PW15 1202 K LF
PW Series Issue December 2008 Sheet 3 of 3
Ordering Procedure
This product has two valid part numbers:
European (Welwyn) Part Number: PW15-12KKI (PW15, 12 kilohms ±10%, Pb-free)
P
W
1
5
-
1
2
K
K
I
1
2
3
4
5
USA (IRC) Part Number: PW151202KLF (PW15, 12 kilohms ±10%, Pb-free)
P
W
1
5
1
2
0
2
K
L
F
1
2
3
4
5
1
2
3
4
5
Type Configuration ValueTolerance Packing & Termination Finish
PW2, PW3,
PW5, PW7,
PW10, PW15,
PW18, PW22,
PW25
Omit for Standard
R = ohms
K = kilohms
J = ±5%
I = Standard packing & Pb-free
A = Alternate
K = ±10%
Bulk pack
1
2
3
4
5
Type Configuration ValueTolerance Packing & Termination Finish
PW2, PW3,
PW5, PW7,
PW10, PW15,
PW18, PW22,
PW25
Omit for Standard
3 digits + multiplier
J = ±5%
Omit for SnPb
A = Alternate
R = ohms for values
<100 ohms
K = ±10%
LF = Pb-free
Bulk pack
PW3
PW3