SG73-RT surge current flat chip resistors (anti-surge, anti-sulfuration) EU features Excellent anti-sulfuration characteristic due to using high sulfuration-proof inner top electrode material/pulse Superior to RK73 series chip resistors in pulse withstanding voltage Products with lead-free terminations meet EU RoHS requirements. EU RoHS regulation is not intended for Pb-glass contained in electrode, resistor element and glass. AEC-Q200 Qualified dimensions and construction Type Dimensions inches (mm) (Inch Size Code) L Wc d t L c c .063.008 .031.004 .012.004 .012.004 .018.004 SG73 1J (1.60.2) (0.80.1) (0.30.1) (0.30.1) (0.450.1) (0603) +.008 W SG73 2A .079.008 .049.004 .016.008 .012 .02.004 -.004 (0805) (2.00.2) (1.250.1) (0.40.2) (0.50.1) Solder +0.2 (0.3 ) Plating -0.1 Ni t SG73 2B .063.008 Plating +.008 (1206) (1.60.2) .126.008 .016 -.004 d Protective Resistive Inner (3.20.2) +0.2 Coating Film Electrode (0.4 ) SG73 2E .102.008 -0.1 Ceramic (1210) (2.60.2) Substrate .02.012 .024.004 (0.50.3) (0.60.1) SG73 W2H .197.008 .098.008 (2010) (5.00.2) (2.50.2) .026.006 (0.650.15) SG73 W3A .248.008 .122.008 (2512) (6.30.2) (3.10.2) ordering information SG73 2A RT TD 103 K Power Termination Nominal Resistance Type Packaging Rating Material Resistance Tolerance SG73 1J RT: Sn TD: 0603, 0805, 1206, 1210: 10%, 20%: K: 10% Anti-Sulfur 7 4mm pitch punched paper 2 significant figures 2A M:20% + 1 multiplier R TDD: 0603, 0805, 1206, 1210: 2B indicates decimal on 10 paper tape 2E value <10 TE: 0805, 1206, 1210, 2010 & 2512: W2H 7 embossed plastic W3A TED: 0805, 1206, 1210, 2010 & 2512: 10 embossed plastic 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. 11/06/17 KOA Speer Electronics, Inc. 199 Bolivar Drive Bradford, PA 16701 USA 814-362-5536 Fax: 814-362-8883 www.koaspeer.com 61 resistorsresistors SG73-RT surge current flat chip resistors (anti-surge, anti-sulfuration) applications and ratings Resistance Range Rated Rated T.C.R. Operating Maximum Maximum K: 10% Part Power Ambient Terminal Part (ppm/C) Temp. Working Overload M: 20% Designation Rating Temp. Temp. Max. Range Voltage Voltage E-12 SG73 1J 400 1 - 8.2 0.1W 70C 125C 50V 100V (0603) 200 10 - 1M 400 1 - 8.2 SG73 2A 0.125W 70C 125C 150V 200V (0805) 200 10 - 1M 400 1 - 8.2 SG73 2B 70C 125C -55C 0.33W (1206) 200 10 - 1M to 400 1 - 8.2 SG73 2E +155C 0.50W 70C 125C (1210) 200 10 - 1M 400V 200V SG73 W2H 400 1 - 8.2 0.75W 70C 125C (2010) 200 10 - 1M 400 1 - 8.2 SG73 W3A 1W 70C 125C (2512) 200 10 - 1M Rated voltage = Power rating x resistance value or max. working voltage, whichever is lower If any questions should arise whether to use the Rated Ambient Temperature or the Rated Terminal Part Temperature, please give priority to the Rated Terminal Part Temperature. Prior to use and for more details refer to Introduction of the derating curves on the terminal part temperature in the beginning of the catalog. environmental applications One-Pulse Limiting Electric Power Derating Curve 100000 100 100 80 80 10000 60 60 1000 40 40 100 20 20 3A 0 0 2H -60 -40 -200420060 80 100 120 140 160 -60 -40 -200420060 80 100 120 140 160 10 2E -55 70 155 -55 125 155 2B Ambient Temperature Terminal Part Temperature 2A (C) (C) 1J 1 .001 .01 .1 1 10 100 1000 For resistors operated at an ambient temperature For resistors operated at a terminal part temperature Pulse Duration of 70C or above, a power rating shall be of described for each size or above, a power rating (ms) derated in accordance with the derating curve. shall be derated in accordance with the derating curve. The maximum applicable voltage is equal to the max. Please refer to Introduction of the derating curve overload voltage. Please contact factory for resistance based on the terminal part temperature in the characteristics of continuous applied pulse. beginning of our catalog before use. Performance Characteristics Requirement R (%+0.1) Parameter Limit Typical Test Method Within specified Resistance 25C tolerance Within specified T.C.R. +25C/-55C and +25C/+125C T.C.R. 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 Rapid Change of Temperature 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% 0.3% +155C, 1000 hours Sulfuration Test 5% 0.2% Soaked in industrial oil with 3.5% sulfur concentration 105C 3C, 500 hours 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. 11/06/18 62 KOA Speer Electronics, Inc. 199 Bolivar Drive Bradford, PA 16701 USA 814-362-5536 Fax: 814-362-8883 www.koaspeer.com % Rated Power % Rated Power One-Pulse Limiting Electric Power