Resistors
Make Possible
Four-Terminal Current-Sensing
Wirewound Resistor
Four-Terminal Current-Sensing
4LPW Series
“Current”
Leads
Wirewound Resistor
TC = ±40ppm/°C
3 watts to 15 watts
4LPW Series
0.005 ohm to 1.0 ohm
•
±1%, ±2, ±3, ±5, ±10% tolerance
TC = ±40ppm/°C
•
Flameproof construction
3 watts to 15 watts
•
0.005 ohm to 1.0 ohm
•
±1%, ±2, ±3, ±5, ±10% tolerance
“Sense” Leads
½Current½ Leads
All welded terminations,
ceramic fireproof housing
½Sense½ Leads
All Pb-free parts comply with EU Directive 2011/65/EU (RoHS2)
All welded terminations,
ceramic fireproof housing
Electrical Data
IRC
Type
4LPW-3
4LPW-5
4LPW-7
4LPW-10
4LPW-15
Power @ 25°C
(watts)
3
5
7
10
15
Max. Current
(amps)
10
10
20
20
20
Resistance Range
(ohms)
.005 TO 1.0
.005 TO 1.0
.01 TO 1.0
.01 TO 1.0
.01 TO 1.0
Please note: When ordering the alternate configuration please add an "A" after the part number. (4LPW-3A)
Standard Configuration
1.0 (25.4)
Min.
1/8” Max.
L
D
W
H
Alternate Configuration
E
1.50 ± .062
(38.1 ± 1.6)
S
D
Type
4LPW
Type
4LPW-A
Dimensions (Inches (mm))
IRC
Type
4LPW-3
4LPW-5
4LPW-7
4LPW-10
4LPW-15
General Note
L
±.063 (1.6)
.88 (22.4)
.88 (22.4)
1.39 (35.3)
1.88 (47.8)
1.88 (47.8)
W
±.03 (.8)
.31 (7.87)
.38 (9.65)
.38 (9.65)
.38 (9.65)
.50 (12.7)
H
±.03 (.8)
.31 (7.87)
.35 (8.89)
.35 (8.89)
.35 (8.89)
.50 (12.7)
S
±.062 (1.6)
.563 (14.3)
.563 (14.3)
1.013 (25.7)
1.388 (35.3)
1.388 (35.3)
D
Diameter
.036* (.9)
.036* (.9)
.036* (.9)
.036* (.9)
.036* (.9)
E
±.03 (.8)
.38 (9.65)
.41 (10.4)
.47 (11.9)
.47 (11.9)
.63 (16.0)
General Note
TT Electronics
the right to
the right to make changes in product specification without notice or liability.
IRC reserves
reserves
make changes in product specification without notice or liability.
All information
is subject
IRC’s
Electronics’
considered accurate at time of going to print.
All information
is subject to
to TT
own data and is
own data and is considered accurate at time of going to print.
A subsidiary
www.ttelectronicsresistors.com
of
© TT Electronics plc
• Facsimile: 361 992 3377 • Website: www.irctt.com
Telephone: 361 992 7900
Wire and Film Technologies Division
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
TT electronics plc
4LPW Series Issue October 2008 Sheet 1 of 2
06.15
Four-Terminal Current-Sensing
Wirewound Resistor
Four-Terminal Current-Sensing
Wirewound Resistor
4LPW Series
Temperature Rise Chart
250
Make Possible
Power Derating Curve
100
4LPW-3, 5, 7, 10
Hot Spot Temperature (°C)
4LPW-15
4LPW-10
4LPW-7
Percent Rated Load
200
150
100
80
60
40
20
0
Max. Recommended
Ambient Operating
Temperature 150°C
4LPW-15
4LPW-5
4LPW-3
50
0
0
20
40
60
80
100
120
Percent Rated Load
0
50
100
150
200
250
Ambient Temperature (°C)
Ordering Data
Sample Part No.
IRC Type
4LPW
4LPW
15
R010
F
LF
Power
3 = 3W, 5 = 5W, 7 = 7W, 10 = 10W, 15 = 15W
Resistance Range
Expressed in ohms
(Standard EIA/MIL values)
Tolerance
F = ±1%, G = ±2%, H = ±3%, J = ±5%, K = ±10%
RoHS Indicator
LF indicates RoHS compliance / Omit this code for SnPb finish
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
4LPW Series Issue October 2008 Sheet 2 of 2
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
06.15
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