BL GALAXY ELECTRICAL DUAL SCHOTTKY RECTIFIERS SR1520CT-SR1560CT REVERSE VOLTAGE: 20 - 60 V FORWARD CURRENT: 15 A FEATURES Metal-Semiconductor junction with guard ring TO-220AB Epitaxial construction For use in low voltage,high frequency inverters free xxxx wheeling,and polarity protection applications Low forward voltage drop,low switching losses High surge capability The plastic material carries U/L recognition 94V-0 MECHANICAL DATA Case:JEDEC TO--220AB,molded plastic Terminals: Plated leads, solderable per MIL-STD-111 111 202, Method 208 Polarity: As marked Weight: 0.08 ounce, 2.24 grams 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%. SR 1520CT SR 1530CT SR 1540CT SR 1550CT SR 1560CT UNITS Maximum recurrent peak reverse voltage VRRM 20 30 40 50 60 V Working peak reverse voltage VRMS 14 21 28 35 42 V Maximum DC blocking voltage VDC 20 30 40 50 60 V Maximum average forw ard rectified current h @ T A=100 IF(AV) 15.0 A Peak forw ard surge current 8.3 ms single half b sine-w ave superimposed on rated load v (JEDEC Method) @TA =125 IFSM 200.0 A Maximum instantaneous forw ard voltage per leg h @ 7.5A (Note1) VF Maximum reverse current at rated DC blocking voltage @TA =25 @TA =100 Operating junction temperature range Storage temperature range 0.65 0.75 1.0 mA IR 50.0 TJ -55 --- +150 TSTG -55 --- +150 Note: 1. Pulse test:300us pulse width,1% duty cy cle. Document Number 0267002 V www.galaxycn.com BLGALAXY ELECTRICAL 1. RATINGS AND CHARACTERISTIC CURVES SR1520CT --- SR1560CT FIG.2 -- TYPICAL REVERSE CHARACTERISTICS PER LEG INSTANTANEOUS REVERSE CURRENT MILLIAMPERES 18 15 AMPERES AVERAGE FORWARD CURRENT FIG.1 --FORWARD CURRENT DERATING CURVE Resistive or inductive load 12 9 6 3 0 50 0 100 150 CASE TEMPERATURE, TJ=125 1 .1 TJ=75 .01 TJ=25 .001 1 .1 SR1520CT-SR1540CT SR1550CT-SR1560CT .01 0 .1 .2 .3 .4 .5 .7 .8 1.0 1.2 40 60 80 100 PERCENT OF RATED PEAK REVERSE VOLTAGE, % FIG.4 -- PEAK FORWARD SURGE CURRENT PEAK FORWARD SURGE CURRENT AMPERES Pulse width = 300 s 1% Duty Cycle TJ =125 TJ =25 AMPERES INSTANTANEOUS FORWARD CURRENT, 10 20 0 FIG.3 -- TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS PER LEG 50 SR1520CT-SR1540CT SR1550CT-SR1560CT 10 200 175 TJ=TJMAX. 8.3ms Single Half Sine-Wave (JEDEC Method) 150 125 100 75 50 25 0 INSTANTANEOUS FORWARD VOLTAGE, VOLTS 1 2 5 10 20 50 100 NUMBER OF CYCLE AT 60Hz FIG.5 -- TYPICAL JUNCTION CAPACITANCE /W FIG.6 -- TYPICAL TRANSIENT THERMAL IMPEDANCE TJ=25 1000 SR1520CT-SR1540CT SR1550CT-SR1560CT 100 0.1 1 10 100 REVERSE VOLTAGE, VOLTS TRANSIENT THERMAL IMPEDANCE, JUNCTION CAPACITANCE, pF 100 4000 10 1 0.1 0.01 0.1 1 10 100 PULSE DURATION, Sec www.galaxycn.com Document Number 0267002 BLGALAXY ELECTRICAL 2.