resistors SG73-RT surge current flat chip resistors (anti-sulfuration) EU features * Excellent anti-sulfuration characteristic due to using high sulfuration-proof inner top electrode material * Superior to RK73 series chip resistors in pulse withstanding voltage * Suitable for both flow and reflow soldering * Marking: White three-digit on wine red protective coat * 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 L c Type c W Solder Plating Ni Plating t Protective Coating d Resistive Inner Film Electrode 100 80 60 t .063.008 .031.004 .012.004 .012.004 .018.004 (1.60.2) (0.80.1) (0.30.1) (0.30.1) (0.450.1) 2A (0805) .079.008 .049.004 .016.008 (2.00.2) (1.250.1) (0.40.2) 2E (1210) Derating Curve Dimensions inches (mm) W c d 1J (0603) 2B (1206) Ceramic Substrate % Rated Power L (Inch Size Code) .126.008 (3.20.2) .012 (0.3 .063.008 (1.60.2) .102.008 (2.60.2) W2H (2010) .197.008 .098.008 (5.00.2) (2.50.2) W3A (2512) .248.008 .122.008 (6.30.2) (3.10.2) .016 (0.4 +.008 -.004 +0.2 ) -0.1 .02.004 (0.50.1) +.008 -.004 +0.2 ) -0.1 .02.012 (0.50.3) .024.004 (0.60.1) .026.006 (0.650.15) 40 20 0 -60 -40 -20 -55 0 20 40 60 80 100 120 140 160 70 155 Ambient Temperature (C) ordering information New Part # SG73 103 K Nominal Resistance 10%, 20%: 2 significant figures + 1 multiplier "R" indicates decimal on value <10 Resistance Tolerance K: 10% M:20% Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 11/06/09 Type SG73 30 2A RT Power Rating 1J 2A 2B 2E W2H W3A Termination Material RT: Sn Anti-Sulfur TD Packaging TP: 0603, 0805: 7" 2mm pitch punch paper TD: 0603, 0805, 1206, 1210: 7" 4mm pitch punched paper TDD: 0603, 0805, 1206, 1210: 10" paper tape TE: 0805, 1206, 1210, 2010 & 2512: 7" punched plastic TED: 0805, 1206, 1210, 2010 & 2512: 10" punched plastic For further information on packaging, please refer to Appendix A KOA Speer Electronics, Inc. * 199 Bolivar Drive * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com surge current flat chip resistors (anti-sulfuration) applications and ratings Part Designation Power Rating 1J (0603) 0.1W 2A (0805) 0.125W 2B (1206) 0.25W 2E (1210) W2H (2010) 0.33W W3A (2512) 1W 0.75W T.C.R. (ppm/C) Max. 400 200 400 200 400 200 400 200 400 200 400 200 Resistance Range (E-12) (E-12) (K10%) (M20%) 1 - 8.2 10 - 1M 1 - 8.2 10 - 1M 1 - 8.2 10 - 1M 1 - 8.2 10 - 1M 1 - 8.2 10 - 1M 1 - 8.2 10 - 1M Maximum Working Voltage Maximum Overload Voltage 50V 100V 150V 200V Rated Ambient Temperature Operating Temperature Range +70C -55C to +155C 400V 200V environmental applications Performance Characteristics Parameter Resistance T.C.R. Requirement R Limit Typical Within specified -- tolerance Within specified -- T.C.R. Test Method 25C +25C/-55C and +25C/+125C Overload (Short time) 2% 0.5% Rated Voltage x 2.5 for 5 seconds Resistance to Solder Heat 1% 0.75% 260C 5C, 10 seconds 1 second 0.5% 0.3% -55C (30 minutes), +125C (30 minutes), 100 cycles Moisture Resistance 3% 0.75% 40C 2C, 90%~95%RH, 1000 hours; 1.5 hr ON, 0.5 hr OFF cycle Endurance at 70C 3% 0.75% 70C 2C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle High Temperature Exposure 1% 0.5% +155C, 1000 hours -- 0.5% H2S 1000ppm, +25C, 90%Rh, 720 hours Rapid Change of Temperature Sulfuration Test Additional environmental applications can also be found at 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. 11/07/08 KOA Speer Electronics, Inc. * 199 Bolivar Drive * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com 31 resistors SG73-RT