Features
■ High current capability
■ Low inductance (less than 10 nH)
■ Radial leads
■ Low ohmic
Applications
■ Power supplies
■ UPS
■ Motor drives
PWR4412-2S Series Bare Metal Element Resistor
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
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
diff erent kinds, motor drives and many
other applications. The resistor is quite
rugged, consisting of a special metal
alloy welded to tinned copper leads.
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 %
Electrical Specifi cations
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 Coeffi cient of Resistance
Wire .................................... ±20 ppm/°C
Packaging ..........................250 pcs./bag
Product Dimensions
REV. 02/14
Power
Rating
(W)
Version Dimension L
Dimension
H Max.
Resistance Values
1B
11.43 +1.02/-0.51
(0.450 +0.04/-0.02)
7.62
(0.30)
R0050, R0100, R0200, R0250,
R0300, R0400, R0500, R1000
3C
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
5D
20.32 +1.02/-0.51
(0.80 +0.04/-0.02)
25.4
(1.0)
R0050, R0100, R0150, R0200,
R0250, R0300, R0500, R1000
How to Order
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 %
Note: Terminal pins are tin plated copper.
DIMENSIONS:
MM
(INCHES)
Power Derating Curve
Power (%)
Ambient Temperature (°C)
120
100
80
60
40
20
0
0 50 100 150 200 250 300 350
1.65 +0.25/-0.13
(0.065 +0.010/-0.005)
4.8
(0.189)
MAX.
L
1.01 ± 0.05
(0.040 ± 0.002)
H
3.18 ± 0.76
(0.125 ± 0.030)
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www.bourns.com
