Resistors
Resistors
Four-Terminal Current-Sensing
Four-Terminal Current-Sensing
Wirewound Resistor
Wirewound Resistor
4LPW Series
4LPW Series
TC = ±40ppm/°C
TC = ±40ppm/°C
3 watts to 15 watts
3 watts to 15
4LPW Series
watts
0.005 ohm to 1.0 ohm
0.005 ohm to 1.0 ohm
±1%, ±2, ±3, ±5, ±10% tolerance
±1%, ±2, ±3, ±5, ±10% tolerance
Flameproof construction
Flameproof construction
“Current”
“Current”
Leads
Leads
“Sense” Leads
“Sense” Leads
All welded terminations,
All welded terminations,
ceramic fireproof housing
ceramic fireproof housing
All Pb-free parts comply with EU Directive 2011/65/EU (RoHS2)
All Pb-free parts comply with EU Directive 2011/65/EU (RoHS2)
IRC
Type
4LPW-3
4LPW-5
4LPW-7
4LPW-10
4LPW-15
Power @ 25°C
(watts)
Max. Current
(amps)
Resistance Range
(ohms)
1.0 (25.4)
Min.
1/8” Max.
L
H
D
W
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
General Note
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
L
±.063 (1.6)
W
±.03 (.8)
H
±.03 (.8)
S
±.062 (1.6)
D
Diameter
E
±.03 (.8)
IRC
Electronics
right to make changes
to
product
changes in
without notice or liability.
without notice or liability.
TT
reserves the
reserves the right
in
make
specification
product specification
All
information is subject to IRC’s own
Electronics’ own data and
at time of going to print.
at time of going to print.
All
information is subject to TT
data and is considered accurate
is considered accurate
BI Technologies IRC Welwyn
BI Technologies IRC Welwyn
A subsidiary of
www.ttelectronicsresistors.com
TT electronics plc
www.ttelectronics.com/resistors
4LPW Series Issue October 2008 Sheet 1 of 2
© TT Electronics plc
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
© TT Electronics plc
All information is subject to TT Electronics’ 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
09.16
11.17
Four-Terminal Current-Sensing
Wirewound Resistor
Four-Terminal Current-Sensing
Wirewound Resistor
4LPW Series
Temperature Rise Chart
250
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.
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
www.ttelectronicsresistors.com
© TT Electronics plc
11.17
09.16
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