resistors NPR surface mount molded current sense resistor EU features * * * * * * Surface mount power resistors Flame retardant type (UL94V0) Current detecting resistors for power supplies, etc. Metal plate terminals Marking: Black body color with teal marking Products with lead-free terminations meet EU RoHS requirements. EU RoHS regulation is not intended for Pb-glass contained in electrode, resister element and glass. dimensions and construction L Size Code W b t Electrode c c Molded Resistive Resin Element a L W Dimensions inches (mm) t a b c NPR1 .295.02 .177.012 .079.012 .098.012 .051.012 .055.012 (7.50.5) (4.50.3) (2.00.3) (2.50.3) (1.30.3) (1.40.3) NPR2 .472.02 .315.012 .157.02 .157.012 .118.02 (12.00.5) (8.00.3) (4.00.5) (4.00.3) (3.00.5) .059.02 (1.50.5) ordering information New Part # NPR Type 1 T Power Rating 1 2 Termination Material T: Sn (Other termination styles may be available, please contact factory for options) TE Packaging NPR1- TE: 7" embossed plastic (1,000 pieces/reel) NPR2- TEB: 13" embossed plastic (1,000 pieces/reel) 100 Nominal Resistance 1%: 3 significant figures + 1 multiplier "R" indicates decimal point <100 5%, 10%: 2 significant figures + 1 multiplier "R" indicates decimal point <10 All values <0.1 regardless of tolerance use "L" as decimal Ex: 91m = 91L 3.9m = 3L9 J Tolerance F: 1% J: 5% K: 10% 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. 50 12/20/10 KOA Speer Electronics, Inc. * 199 Bolivar Drive * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com surface mount molded current sense resistor applications and ratings Part Designation T.C.R. (ppm/C) Max. Power Rating NPR1 1W NPR2 2W Absolute Maximum Working Voltage Resistance Range E-24 (F1%) (J5%) (K10%) 100: R0.1 200: R<0.1 0.1 - 10M 10m - 22M 3.9m - 9.1m Absolute Maximum Overload Voltage 350V 700V 500V 1000V Rated Operating Ambient Temperature Temperature Range -55C to +180C +70C environmental applications Derating Curve Surface Temperature Rise 100 150 NPR2 1 Temperature Rise (C) % Rated Power 80 NPR1 1 100 60 40 20 0 -60 -40 -20 -55 0 20 40 80 100 120 140 160 180 70 Ambient Temperature (C) 1 Hot Spot 2 Solder Joint NPR1 2 50 0 60 NPR2 2 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 70C Low Temperature Operation Requirement R % Limit Typical Within regulated -- tolerance Within specified -- T.C.R. 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 2.0% 1.5% 2.0% 0.5% 0.5% 0.25% Test Method 25C +25C/+125C Rated voltage x 2.5 for 5 seconds 260C 5C, 10 seconds 1 second -40C (30 minutes), +155C (30 minutes), 5 cycles 40C 2C, 90 - 95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle 70C 2C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle -55C, 1 hour 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 51 resistors NPR