PL
IA
NT
C
OM
*R
oH
S
Features
Applications
n High current capability
n Power supplies
n Low inductance (less than 10 nH)
n UPS
n Radial leads
n Motor drives
n Low ohmic
LE
AD
F
RE
E
This series is currently available but
not recommended for new designs.
Product Dimensions
4.8
(0.189)
MAX.
Ro VE LEA
HS RS D
C ION FRE
OM S E
PL AR
IA E
NT
*
General Information
The Bourns® PWR4412-2S Series is
a through-hole resistor designed for
current shunt and current sensing
applications such as power supplies of
different kinds, motor drives and many
other applications. The resistor is quite
rugged, consisting of a special metal
alloy welded to tinned copper leads.
PWR4412-2S Series Bare Metal Element Resistor
H
Performance
ΔR
Load Life (1000 Hours @ 70 °C).... 2.5 %
Moisture No Load 100 Hours........... 1 %
Temperature Cycling
(-40 °C to +125 °C, 1000 Cycles)....1 %
3.18 ± 0.76
(0.125 ± 0.030)
1.01 ± 0.05
(0.040 ± 0.002)
Electrical Specifications
Power Rating @ 85 °C ..............1, 3, 5 W
(see matrix)
Resistance Range......0.005 to 0.1 ohms
Tolerances Available.................1 %, 5 %
Temperature Range.......-55 ° to +270 °C
Maximum Working Voltage..............√P*R
Short Time Overload
........... 5 x Rated Power for 5 seconds
Temperature Coefficient of Resistance
Wire..................................... ±20 ppm/°C
Packaging...........................250 pcs./bag
120
DIMENSIONS = MILLIMETERS
Dimension(INCHES)
Power
Rating
(W)
Version
Dimension L
1
B
11.43 +1.02/-0.51
(0.450 +0.04/-0.02)
7.62
(0.30)
R0050, R0100, R0200, R0250,
R0300, R0400, R0500, R1000
3
C
15.24 +1.02/-0.51
(0.60 +0.04/-0.02)
25.4
(1.0)
R0050, R0100, R0150, R0200,
R0250, R0300, R0400, R0500,
R1000
5
D
20.32 +1.02/-0.51
(0.80 +0.04/-0.02)
25.4
(1.0)
R0050, R0100, R0150, R0200,
R0250, R0300, R0500, R1000
Note: Terminal pins are tin plated copper.
Power Derating Curve
H Max.
Resistance Values
MM
DIMENSIONS:
(INCHES)
How to Order
100
Power (%)
1.65 +0.25/-0.13
(0.065 +0.010/-0.005)
L
80
60
40
20
0
0
50
100
150
200
250
300
350
PWR4412-2S B R0300 J
Model
Version
Resistance Value for All Tolerances
“R” represents decimal point (examples: R0050 = 5 milliohms; R1000 = 100 milliohms)
Absolute Tolerance
J=5%
F=1%
Ambient Temperature (ϒC)
REV. 09/18
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
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C1753 05/17/18R
