resistors CSR four-terminal current sense resistor EU features • • • • • Extremely low resistance and high precision tolerance Low T.C.R. achieved (±50ppm/°C) Flameproof UL94V0 Marking: Black body color with white marking Products with lead-free terminations meet EU RoHS and China RoHS requirements dimensions and construction Size Code Dimensions inches (mm) b c d L W t a e f g h CSR1 .425±.02 (10.8±0.5) .244±.012 (6.2±0.3) .083±.008 (2.1±0.2) .118±.012 (3.0±0.3) .031±.008 (0.8±0.2) .055±.02 (1.4±0.5) .047±.02 (1.2±0.5) .051±.012 (1.3±0.3) .051±.012 (1.3±0.3) .197±.004 (5.0±0.1) .098±.004 (2.5±0.1) CSR2 .504±.02 (12.8±0.5) .323±.012 (8.2±0.3) .122±.008 (3.1±0.2) .197±.012 (5.0±0.3) .039±.008 (1.0±0.2) .079±.02 (2.0±0.5) .079±.02 (2.0±0.5) .087±.012 (2.2±0.3) .087±.012 (2.2±0.3) .236±.004 (6.0±0.1) .118±.004 (3.0±0.1) Voltage Electrode Molded Resistive Resin Element L Current Electrode W e t f c b d h a c g ordering information New Part # CSR Type 1 T Power Rating 1: 1W 2: 2W Termination Material T: Sn (Other termination styles may be available, please contact factory for options) TE Packaging TE: Embossed plastic (1,000 pieces/reel) 10L0 Nominal Resistance In milliohms: 3 significant figures “L” indicates decimal point F Tolerance D: ±0.5% F: ±1% For further information on packaging, please refer to Appendix A. Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 58 1/17/13 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com four-terminal current sense resistor typical circuit schematic Input Detecting Circuit C S R Output Voltage Terminal (KELVIN terminal) Current Terminal applications and ratings Part Designation Power Rating CSR1 1W CSR2 2W T.C.R. (ppm/°C) Max. Resistance Range E-12 ±50 5mΩ - 50mΩ Resistance Tolerance D: ±0.5%,F: ±1% F: ±1% Dielectric Withstanding Voltage Rated Ambient Temperature Operating Temperature Range 500V +70°C -55°C to +125°C environmental applications Derating Curve Surface Temperature Rise 100 125 CSR2 100 Temperature Rise (°C) % Rated Power 80 60 40 20 0 -60 -40 -55 -20 0 20 40 60 80 70 Ambient Temperature (°C) 75 50 25 0 100 120 140 125 CSR1 0 25 50 75 100 % Rated Power Performance Characteristics Parameter Resistance T.C.R. Overload Resistance to Solder Heat Rapid Change of Temperature Moisture Resistance Endurance at 70°C Low Temperature Operation High Temperature Exposure Requirement ∆R ±% Limit Typical Within regulated — tolerance Within specified — T.C.R. ±1.0% ±1.0% ±1.0% ±1.0% ±1.0% ±0.5% ±2.0% ±0.5% ±1.0% ±0.5% ±0.5% ±0.25% ±0.5% ±0.25% Test Method 25°C +25°C/+125°C Rated power x 5 for 5 seconds 260°C ± 5°C, 10 seconds ± 1 second -55°C (30 minutes), +125°C (30 minutes), 500 cycles 40°C ± 2°C, 90 - 95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle -55°C, 1 hour +125°C, 100 hours Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 12/20/10 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com 59 resistors CSR