Resistors
Make Possible
General Purpose Axial Leaded
General Purpose Axial Leaded
Power Wirewound Resistor
Power Wirewound Resistor
PW Axial Series
Fireproof high
temperature ceramic
0.10 to 30K case- stand offs
optional
PW Series
2 watts to 25 watts
Alloy resistance
0.10 to 30K
wire on fiberglass
10% or 5% tolerance
substrate
2 watts to 25 watts
TC s from 300 ppm/C to +5500 ppm/C
Inorganic
10% or 5% tolerance
fireproof
Lead free, RoHS compliant construction available
encapsulant
TCs from 300 ppm/C to +5500 ppm/C
Automatically
Lead free, RoHS compliant construction available
clamped termination
All Pb-free parts comply with EU Directive 2011/65/EU (RoHS2)
lead assembly
Electrical Data
Standard
Standard Temperature
Power Rating
Resistance Special Temperature Coefcients
Coefcient
Type @ 25C
Range
+0.06%/C +0.03%/C +0.55%/C +0.45%/C +0.25%/C
(watts)
(ohms)
over R range over R range over R range over R range over R range
PW-2 2 0.15 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
Standard Conguration Alternate Conguration
0.125 Max.
LL L W E
D
H
F
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)
PW-2
PW-3 (1.6)
PW-5 (1.6)
PW-7 (3.18)
PW-10 (3.18)
PW-15 (3.18)
PW-18 (3.18)
PW-22 (3.18)
PW-25 (3.18)
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.
www.ttelectronicsresistors.com
TT Electronics plc
07.14GenerGeneral Purpose Axial Leadedal Purpose Axial Leaded
Power Wirewound Resistor
Make Possible
Power Wirewound Resistor
PW Axial Series
Temperature Rise Chart Power Derating Curve
25 40 85
300 100
PW - 22, 25
PW - 2
PW - 15, 18
250
80
PW - 10
PW - 3, 5, 7, 10
PW - 7
200
60
PW - 5
150
PW - 3
PW - 15, 18, 22, 25
40
100
20
50
0 0
0 20 40 60 80 100 120
0 50 100 150 200 250
Percent of Rated Load
Ambient Temperature
Ordering Procedure
Ordering Data
This product has two valid part numbers:
Sample Part No. PW15 1202 K LF
European (Welwyn) Part Number: PW15-12KKI (PW15, 12 kilohms 10%, Pb-free)
IRC Type
P W 1 5 - 1 2 K K I
Resistance Value
(standard EIA values) 1 2 3 4 5
Tolerance
J = 5%, K = 10%
1 2 3 4 5
Type Configuration Value Tolerance Packing & Termination Finish
RoHS Indicator
LF indicated RoHS compliance
Omit for Standard J = 5% I = Standard packing & Pb-free
R = ohms
PW2, PW3,
K = kilohms
A = Alternate K = 10% Bulk pack
PW5, PW7,
PW10, PW15,
PW18, PW22,
PW25
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 Value Tolerance Packing & Termination Finish
Omit for Standard 3 digits + multiplier J = 5% Omit for SnPb
PW2, PW3,
A = Alternate R = ohms for values K = 10% LF = Pb-free
PW5, PW7,
<100 ohms
PW10, PW15, Bulk pack
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
PW18, PW22,
PW25
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.
www.ttelectronicsresistors.com
TT Electronics plc
07.14
Temperature Rise (C)
Percent of Rated Load