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| RF73 fusing flat chip resistor EU features * * * * * * Anti-leaching nickel barrier terminations Suitable for flow and reflow soldering Performs like RK73 under normal conditions Fuses when overloaded Marking: Black three-digit on brown protective coating 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 dimensions and construction c L c Type (Inch Size Code) L Dimensions inches (mm) W c d t W Solder Plating t d Protective Coating Resistive Inner Film Electrode Ni Plating 1J (0603) 2A (0805) 2B (1206) 2E (1210) 2H (2010) 3A (2512) .063.008 .031.004 .012.004 .012.004 (1.60.2) (0.80.1) (0.30.1) (0.30.1) .079.008 .049.004 .016.008 (2.00.2) (1.250.1) (0.40.2) .063.008 .126.008 (1.60.2) (3.20.2) .102.008 (2.60.2) .197.008 .098.008 (2.50.2) (5.00.2) .248.008 .122.008 (3.10.2) (6.30.2) .012 (0.3 +.008 -.004 +0.2 ) -0.1 .02.004 (0.50.1) Ceramic Substrate .02.012 (0.50.3) .016 (0.4 +.008 -.004 +0.2 ) -0.1 .024.004 (0.60.1) ordering information New Part # RF73 Type 2B Size Code 1J: 0603 2A: 0805 2B: 1206 2E: 1210 2H: 2010 3A: 2512 T Termination Material T: Sn (Other termination styles may be available, please contact factory for options) TD Packaging TD: 7" paper tape (0603, 0805, 1206, 1210: 5,000 pieces/reel) TE: 7" punched plastic (0805, 1206, 1210, 2010, 2512: 4,000 pieces/reel) 100 Nominal Resistance 2 significant figures + 1 multiplier "R" indicates decimal on value <10 J Tolerance J: 5% 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. 11/20/08 KOA Speer Electronics, Inc. * 199 Bolivar Drive * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com 173 circuit protection RF73 fusing flat chip resistor applications and ratings Power Part Rating Designation @ 70C T.C.R. (ppm/C) Max. +1000 ~ -500 (1.0-3.3) 500 (3.6-100) Resistance Resistance Range Tolerance E-24* Maximum Open Circuit Voltage -- 50V J: 5% 3.0W 0.2-0.47 3.75W 0.2-0.47 4.5W 0.2-0.47 5.5W 0.2-0.47 6.5W 0.2-0.47 2.6W 1.0 2.6W 0.51-1.0 2.875W 0.51-10 4.1W 0.51-4.7 5.0W 0.51-4.7 6.0W 0.51-4.7 Fusing Characteristics Fusing Power 2.4W 1.1-20 2.4W 1.1-20 2.5W 11-24 3.5W 5.1-27 4.0W 5.1-27 5.0W 5.1-30 2.1W 22-100 2.1W 22-100 2.0W 27-100 3.2W 30-100 3.5W 30-100 4.5W 33-100 -- 2.0W 110-510 60 1.75W sec. 110-510 max. 3.0W 110-510 3.2W 110-510 4.0W 110-510 Operating Temperature Fusing Range Time Fusing TIme (Sec.) 80 % Rated Power 60 40 20 0 -60 -40 -55 Limiting Electric Power circuit protection RF731J 0.63W 1-100 RF732A RF732B RF732E RF732H RF733A 0.1W 0.125W +1000 ~ -500 (0.2-4.3) 0.25W 0.2-510 500 (4.7-510) 0.50W 1.0W -55C to +125C 100V environmental applications Derating Curve 100 One-Pulse Limiting Electric Power 100 Typical Fusing Characteristics 10 10 3A 2H 2E 2B 1J, 2A -20 0 20 40 60 80 70 Ambient Temperature (C) 100 120 140 125 1 .01 .1 1 Pulse Duration (msec) 10 100 1 1J, 2A 2B 2E 2H 3A 0 1 2 3 4 5 6 7 8 Fusing Power (W) Performance Characteristics Parameter Resistance T.C.R. Overload (Short Time) Resistance to Solder Heat Rapid Change of Temperature Moisture Resistance Endurance at 70C High Temperature Exposure Requirement R (% + 0.1) Limit Typical Within specified -- tolerance Within specified T.C.R. 5.0% 3.0% 0.5%: 2A~3A 3.0%: 1J 5.0% 5.0% 1.0% -- 2.0% 0.5% 0.3%: 2A~3A 0.6%: 1J 2.0% 1.0% 0.6% Test Method 25C +25C/-55C and +25C/+125C Rated voltage x 2 for 5 seconds (except 2E, 2H, 3A: x 1.5) 260C 5C for 10 seconds 1 second -55C (30 minutes)/ +125C (30 minutes) 5 cycles 40C 2C, 90 - 95% RH, 500 hours, 1.5 hr ON, 0.5 hr OFF cycle 70C 2C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle +125C, 100 hours Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 1/06/09 174 KOA Speer Electronics, Inc. * 199 Bolivar Drive * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com |
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