NT IA PL M CO S oH *R Features Applications ■ High current capability ■ Power supplies ■ Low inductance ■ UPS ■ Radial leads ■ Motor drives ■ Low ohmic PWR4412-2S Series Bare Metal Element Resistor 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. Product Dimensions 4.8 (0.189) MAX. 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 1.65 +0.25/-0.13 (0.065 +0.010/-0.005) L Power Rating (W) Version Dimension L Dimension H Max. 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 120 DIMENSIONS: MM (INCHES) How to Order 100 Power (%) Resistance Values PWR4412-2S B R0300 J 80 Model Version Resistance Value for All Tolerances “R” represents decimal point (examples: R0050 = 5 milliohms; R1000 = 100 milliohms) Absolute Tolerance J=5% F=1% 60 40 20 0 0 50 100 150 200 250 300 350 Ambient Temperature (°C) Asia-Pacific: Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116 Europe: Tel: +41-41 768 5555 • Fax: +41-41 768 5510 The Americas: Tel: +1-951 781-5500 • Fax: +1-951 781-5700 REV. 03/09 *RoHS Directive 2002/95/EC Jan 27 2003 including Annex. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications www.bourns.com