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Technical content
44 KOA Speer Electronics, Inc.• 199 Bolivar Drive • Bradford, P A 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.1/31/08 NPR surface mount molded current sense resistor
features
- Surface mount power resistors
- Flame retardant type (UL94V0)
- Current detecting resistors for power supplies, etc.
- Metal plate terminals
- Non-wirewound structure
- Marking: Black body color with teal marking
- Products with lead-free terminations meet EU RoHS requirements. Pb located in glass material, electrode and resistor element is exempt per Annex 1, exemption 5 of EU directive 2005/95/EC
ordering information
F: ±1% J: ±5% K: ±10% T: Sn (Other termination styles may be available, please contact factory for options) ±1%: 3 significant figures + 1 multiplier “R” indicates decimal point <100Ω ±5%, ±10%: 2 significant figures + 1 multiplier “R” indicates decimal point <10Ω All values <0.1Ωregardless of tolerance use “L” as decimal Ex: 91mΩ = 91L 3.9mΩ = 3L9 NPR1- TE: 7" embossed plastic (1,000 pieces/reel) NPR2- TEB: 13" embossed plastic (1,000 pieces/reel) NPR Type Power Rating Nominal Resistance ToleranceTermination Material Packaging New Part # 1 TE 100 JT For further information on packaging, please refer to Appendix A. dimensions and construction W t L a b cc Molded Resin Resistive Element Electrode .472±.02 (12.0±0.5) .315±.012 (8.0±0.3) .157±.02 (4.0±0.5) .157±.012 (4.0±0.3) .059±.02 (1.5±0.5) NPR1 NPR2 cbatWL Dimensions inches(mm) .295±.02 (7.5±0.5) .177±.012 (4.5±0.3) .079±.012 (2.0±0.3) .051±.012 (1.3±0.3) .118±.02 (3.0±0.5) .055±.012 (1.4±0.3) .098±.012 (2.5±0.3) Size Code resistors EU
1733 Reader's Spreads pg1-203:document 1/27/09 4:04 PM Page 42
45KOA Speer Electronics, Inc.• 199 Bolivar Drive • Bradford, P A 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.12/16/08 NPR surface mount molded current sense resistor Absolute Maximum Overload Voltage Absolute Maximum Working Voltage Part Designation Rated Ambient Temperature Operating Temperature Range Power Rating applications and ratings T.C.R. (ppm/°C) Max. Resistance Range E-24 NPR1 NPR2 350V 500V 700V 1000V +70°C -55°C to +180°C ±100: R≥0.1Ω ±200: R<0.1Ω0.1Ω- 10MΩ10mΩ - 22MΩ 3.9mΩ- 9.1mΩ Derating Curve Surface Temperature Rise environmental applications% Rated Power 100 -60 -40 -20 0 406 08 01 001 80 Ambient Temperature (°C) -55 120 140 160 150 100 NPR2 Temperature Rise (°C) 25 50 75 100 % Rated Power Hot Spot NPR1 1 NPR2 2NPR1 Solder Joint Performance Characteristics Parameter Requirement ∆ R Limit Typical Test Method Resistance T.C.R. 25°C +25°C/+125°C Within regulated tolerance Within specified T.C.R. Overload Rated voltage x 2.5 for 5 seconds±1.0% ±1.0% Resistance to Solder Heat 260°C ± 5°C, 10 seconds ± 1 second±1.0% ±1.0% Rapid Change of Temperature -40°C (30 minutes), +155°C (30 minutes), 5 cycles±1.0% ±1.0% Moisture Resistance 40°C ± 2°C, 90 - 95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle±2.0% ±1.5% Endurance at 70°C 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle±2.0% ±0.5% Low Temperature Operation -55°C, 1 hour±0.5% ±0.25% PMS 300 neg. Black neg. resistors