SG73 Series KOA Speer Electronics • 199 Bolivar Drive • Bradford, PA 16701 • 814.362.5536 • KOASpeer.com Thick Film Flat Chip Resistors Surge Current Flat Chip Resistors (SG73 series) Features Electrostatic surge Applications IC Excellent surge resistance ESD & Surge protection at I/O port Type Size (inch) Power Rating (w) SG73 1J 0603 0.1 50 SG73 2A 0805 0.125 150 SG73 2B 1206 0.25 SG73 2E 1210 0.33 SG73 W2H 2010 0.75 SG73 W3A 2512 1 T.C.R. (x10-6/K) Max. Working Vol.(V) +/-200 +/-400 Resistance Range(ohm ) Resistance Tolerance (%) 1~1M K:+/-10 M:+/-20 200 KOA Speer Electronics • 199 Bolivar Drive • Bradford, PA 16701 • 814.362.5536 • KOASpeer.com Thick Film Flat Chip Resistors Surge Current Flat Chip Resistors (SG73S，SG73P series) Features High precision type (+/-0.5%~) SG73S: Excellent ESD resistance High peak voltage, but effective for short duration waveform SG73P:Strong resistance to pulse overload High peak voltage, but effective for long duration waveform (CR discharge/inrush current) Applications ECUs, Circuits to catch inductive lighting surge. Type SG73S 1E SG73P 1E SG73S 1J SG73P 1J SG73S 2A SG73P 2A SG73S 2B SG73P 2B SG73S 2E SG73P 2E Size (inch) Power Rating(W) T.C.R. (x106/K) 0402 0.125 +/-200 0603 0.2 0805 0.25 1206 0.33 Max. Working Vol.(V) Resistance Range(ohm) Resistance Tolerance (%) 50 +/-100 * 150 +/-200 1~10M D:+/-0.5(10~1Mohm) F:+/-1 (1~1Mohm) G:+/-2 (1~10Mohm) J:+/-5 (1~10Mohm) 200 1210 0.5 KOA Speer Electronics • 199 Bolivar Drive • Bradford, PA 16701 • 814.362.5536 • KOASpeer.com ＜ SG73P/S series Anti-pulse chip resistors ＞ ◆Surge overload High peak voltage, short duration Ex.：CR discharge, ESD surge ◆Pulse overload Higher power than rated power, lower voltage than surge is applied for long time. Ex.：Gate resistors of FET SG73S Voltage SG73P 0 100ns~1us Time 1us~1ms KOA Speer Electronics • 199 Bolivar Drive • Bradford, PA 16701 • 814.362.5536 • KOASpeer.com The large the size is, the higher the one-pulse limiting electric power Size （inch） SG73 size comparison One-pulse limiting electric power(W) 100000 10000 1000 2512 2010 1210 100 1206 10 1.E-03 For Pulse SG73 For Pulse SG73P For General RK73 0603 68 70 13 0805 220 103 20 1206 500 268 40 1210 1300 531 52 2012 3600 - 210 2512 11000 - 420 ・Select large size for better pulse resistance. ・Anti pulse type is small size with high max peak current ・SG73P is suitable for high precision (+/0.5~+/-5%) is requested 0805 1 1.E-06 One-pulse limiting electric power(W) Pulse duration:10(us) 1.E+00 Pulse duration(s) KOA Speer Electronics • 199 Bolivar Drive • Bradford, PA 16701 • 814.362.5536 • KOASpeer.com <Comparison of One-pulse limiting electric power 2> SG73P2E SG73P2B SG73P2A SG73P1J RK732E RK732B RK732A RK731Ｊ * RK73 is Reference value. KOA Speer Electronics • 199 Bolivar Drive • Bradford, PA 16701 • 814.362.5536 • KOASpeer.com <ESD Limiting Voltage(Guaranteed performance)> Note RK73 series doesn't have ESD guarantee. KOA Speer Electronics • 199 Bolivar Drive • Bradford, PA 16701 • 814.362.5536 • KOASpeer.com <SG73S vs RK73 ESD test (10 ohm)> ESD test circuit and values Charge resistor C R DUT High-voltage power supply Model Resistance Capacitance (ohm) (pF) Human 1.5k 100 Machine 0 200 KOA Speer Electronics • 199 Bolivar Drive • Bradford, PA 16701 • 814.362.5536 • KOASpeer.com <SG73S vs RK73 ESD test (10k ohm)> ESD test circuit and values Charge resistor C R DUT High-voltage power supply Model Resistance Capacitance (ohm) (pF) Human 1.5k 100 Machine 0 200 KOA Speer Electronics • 199 Bolivar Drive • Bradford, PA 16701 • 814.362.5536 • KOASpeer.com <SG73S vs RK73 ESD test (1M ohm)> ESD test circuit and values Charge resistor C R DUT High-voltage power supply Model Resistance Capacitance (ohm) (pF) Human 1.5k 100 Machine 0 200 KOA Speer Electronics • 199 Bolivar Drive • Bradford, PA 16701 • 814.362.5536 • KOASpeer.com