BL GALAXY ELECTRICAL SR820 --- SR8A0 VOLTAGE RANGE: 20 --- 100 V CURRENT: 8.0A SCHOTTKY BARRIER RECTIFIER FEATURES Metal-Semiconductor junction with guard ring TO - 220AC Epitaxial construction Low forward voltage drop,low switching losses High surge capability For use in low voltage,high frequency inverters free xxxx wheeling,and polarity protection applications The plastic material carries U/L recognition 94V-0 MECHANICAL DATA Case:JEDEC TO--220AC,molded plastic Terminals: Leads solderable per MIL- STD-750,Method 2026 Polarity: As marked Weight: 0.078ounces,2.24 grams ｍｍ Mounting position: Any MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 ambient temperature unless otherwise specified. Single phase,half wave,60 Hz,resistive or inductive load. For capacitive load,derate by 20%. SR820 SR830 SR840 SR850 SR860 SR880 SR8A0 UNITS Maximum recurrent peak reverse voltage VRRM 20 30 40 50 60 80 100 V Maximum RMS voltage VRMS 14 21 28 35 42 56 70 V Maximum DC blocking voltage VDC 20 30 40 50 60 80 100 V Maximum average forw ard rectified current (see fig.1) IF(AV) 8.0 A IFSM 150.0 A Peak forw ard surge current 8.3ms single half -sine-w ave superimposed on rated load @TJ =125 Maximum instantaneous forw ard voltage @ 8.0A (Note 1) Maximum reverse current at rated DC blocking voltage Typical thermal resistance @TA =25 @TA =100 (Note2) Operating junction temperature range Storage temperature range VF 0.65 0.75 1.0 IR 15.0 50.0 3 RθJA TJ TSTG - 55 ---- + 125 0.85 V mA /W - 55 ---- + 150 - 55 ---- +150 NOTE: 1. Pulse test:300us pulse width,1% duty cy cle. www.galaxycn.com 2.Thermal resistance junction to ambient Document Number 0266012 0.8 BLGALAXY ELECTRICAL 1. RATINGS AND CHARACTERISTIC CURVES SR820 --- SR8A0 8.0 SR820 - SR840 6.0 SR850 - SR8A0 4.0 Single Phase Half Wave 60Hz Resistive or Inductive Load 2.0 0 0 50 100 150 150 TJ=TJMAX 8.3ms Single Half Sine-Wave 145 AMPERES PEAK FORWARD SURGE CURRENT FIG.2 -- PEAK FORWARD SURGE CURRENT 10 AMPERES AVERAGE FORWARD RECTIFIED CURRENT FIG.1 -- FORWARD CURRENT DERATING CURVE 140 135 130 125 1.0 LEAD TEMPERATURE, 5.0 10 50 100 NUMBER OF CYCLES AT 60HZ 50 SR820 - SR840 SR850 - SR860 SR8A0 10 SR880 AMPERES INSTANTANEOUS FORWARD CURRENT FIG.3 -- TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 1.0 TJ=25℃ Pulse width=300 1% Duty Cycle s 0.1 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 INSTANTANEOUS FORWARD VOLTAGE, VOLTS www.galaxycn.com Document Number 0266012 BLGALAXY ELECTRICAL 2.