SM5820-SM5822 Surface Mount Schottky Barrier Rectifiers VOLTAGE RANGE: 20 --- 40 V CURRENT: 3.0 A SMC(DO-214AB) Features Metal-Semiconductor junction with guard ring 7.5± 0.25 Low forward voltage drop,low switching losses 8.3± 0.2 2.4± 0.2 The plastic material carries U/L recognition 94V-0 Mechanical Data 1.5± 0.25 Case:JEDEC SMC,molded plastic Polarity: Color band denotes cathode 0.25± 0.06 0.203MAX xxxx High surge capability For use in low voltage,high frequency inverters free wheeling,and polarity protection applications 5.8± 0.3 3.0± 0.15 Epitaxial construction Weight: 0.007 ounces,0.21 grams Dimensions in millimeters 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%. SM5820 SM5821 SM5822 UNITS Maximum recurrent peak reverse voltage VRRM 20 30 40 V Maximum RMS voltage VRMS 14 21 28 V Maximum DC blocking voltage VDC 20 30 40 V Maximum average forw ard rectified current @TL=90 IF(AV) 3.0 A IFSM 80.0 A Peak forw ard surge current 8.3ms single half-sine-w ave superimposed on rated load @TJ =125 Maximum instantaneous forw ard voltage @ 3.0A (Note 1) @ 9.4A Maximum reverse current at rated DC blocking voltage @TA=25 @TA=100 VF IR 0.475 0.50 0.525 0.85 0.90 0.95 2.0 20.0 Typical junction capacitance (Note2) CJ 250 Typical thermal resistance (Note3) RθJA 20 TJ - 55 ---- + 125 TSTG - 55 ---- + 150 Operating junction temperature range Storage temperature range NOTE: 1. Pulse test : 300 s pulse width,1% duty cy cle. 2. Measured at 1.0MHz and applied rev erse v oltage of 4.0V DC. 3.Thermal resistance junction to ambient http://www.luguang.cn mail:[email protected] V mA pF /W SM5820-SM5822 Surface Mount Schottky Barrier Rectifiers Ratings AND Charactieristic Curves FIG.2 -- PEAK FORWARD SURGE CURRENT PEAK FORWARD SURGE CURRENT AMPERES 4 3 AMPERES AVERAGE FORWARD RECTIFIED CURRENT FIG.1 -- FORWARD DERATING CURVE Resistive or Inductive Load 0.375"(9.5mm)Lead Length 2 1 0 0 25 50 75 100 125 150 175 80 70 50 40 30 20 10 1 LEAD TEMPERATURE, SM5820 SM5822 SM5821 1 T J= 2 5 P u ls e w id t h = 3 0 0 1 % D u t y C y c le .1 .3 .5 .7 .9 1 .1 1 .3 1 .5 1 .7 1 .9 s 2 .1 CAPACITANCE, pF 1000 10 AMPERES 100 FIG.4 -- TYPICAL JUNCTION CAPACITANCE 20 .1 10 NUMBER OF CYCLES AT 60Hz FIG.3 -- TYPICAL INSTANTANEOUS FORWARD XXXXXXXXX----CHARACTERISTICS INSTANTANEOUS FORWARD CURRENT TJ=TJMAX 8.3ms Single Half Sine-Wave 60 T J =25℃ f=1.0MHz Vsig=50mVp-p 100 10 0.1 INSTANTANEOUS FORWARD VOLTAGE, VOLTS http://www.luguang.cn 1 10 REVERSE VOLTAGE,VOLTS mail:[email protected] 100