BL GALAXY ELECTRICAL S5817- - -S5819 VOLTAGE RANGE: 20 --- 40 V CURRENT: 1.0 A SCHOTTKY BARRIER RECTIFIER FEATURES SMA(DO-214AC) Metal-Semiconductor junction with guard ring 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 DO--214AC,molded plastic Terminals: Solderable per MIL- STD-202,method 208 Polarity: Color band denotes cathode Weight: 0.002 ounces, 0.064 gram 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%. Device marking code S5817 S5818 S5819 S17 S18 S19 UNITS Maximum recurrent peak reverse voltage V RRM 20 30 40 V Maximum RMS voltage V RMS 14 21 28 V Maximum DC blocking voltage VDC 20 30 40 V Maximum average forw ard rectified current @TL =90 IF(AV) 1.0 A IFSM 25 A Peak forw ard surge current 8.3ms single half-sine-w ave superimposed on rated load Maximum instantaneous forw ard voltage @ 1.0A z (Note 1) @ 3.0A Maximum reverse current @TA =25 at rated DC blocking voltage @TA =100 Typical junction capacitance (Note2) Typical thermal resistance (Note3) Operating junction temperature range Storage temperature range NOTE: 1. Pulse test : 300 VF 0.45 0.55 0.75 0.875 1.0 IR 10 CJ 110 Rθ JA 50 TJ - 55 ---- + 125 TSTG - 55 ---- + 150 s pulse width,1% duty cy cle. 0.60 0.90 V mA pF /W www.galaxycn.com 2. Measured at 1.0MH Z and applied rev erse v oltage of 4.0V DC. 3.Thermal resistance junction to ambient Document Number 0281040 BLGALAXY ELECTRICAL 1. RATINGS AND CHARACTERISTIC CURVES S5817 - - - S5819 FIG.2 -- PEAK FORWARD SURGE CURRENT 0.75 Resistive or Inductive Load 0.375"(9.5mm)Lead Length 0.5 0.25 0 0 25 50 75 100 125 150 PEAK FORWARD SURGE CURRENT AMPERES 1.0 AMPERES AVERAGE FORWARD RECTIFIED CURRENT FIG.1 -- FORWARD DERATING CURVE 25 TJ=TJMAX 8.3ms Single Half Sine-Wave 20 25 10 5 0 1 LEAD TEMPERATURE, CAPACITANCE, pF 400 S5 81 7 AMPERES S5 81 9 S5 81 8 1 T J = 25 P ulse w id th= 300 1 % D uty C yc le s .1 .1 100 FIG.4 -- TYPICAL JUNCTION CAPACITANCE 20 10 10 NUMBER OF CYCLES AT 60Hz FIG.3 -- TYPICAL INSTANTANEOUS FORWARD X -CHARACTERISTICS INSTANTANEOUS FORWARD CURRENT 30 .3 .5 .7 .9 1.1 1.3 1.5 1.7 1.9 2.1 TJ=25℃ f=1.0MHz Vsig=50mVp-p 100 10 0.1 INSTANTANEOUS FORWARD VOLTAGE, VOLTS 1 10 100 REVERSE VOLTAGE,VOLTS www.galaxycn.com Document Number 0281040 BLGALAXY ELECTRICAL 2.