BL GALAXY ELECTRICAL SX5817--- SX5819 VOLTAGE RANGE: 20 --- 40 V CURRENT: 1.0 A SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS FEATURES 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 SOD-123FL 1.9± 0.1 1.0±0.2 Cathode Band Top View 1.4± 0.15 The plastic material carries U/L recognition 94V-0 0.10-0.30 2.8±0.1 MECHANICAL DATA 0.6±0.25 Case:JEDEC SOD-123FL,molded plastic Terminals: Solderable per MIL- STD-202,method 208 Polarity: Color band denotes cathode Weight: 0.0008 ounces,0.22 grams Mounting position: Any 3.7±0.2 Dimensions in millimeters 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 SX5817 SX5818 SX5819 S2 S3 S4 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 9.5mm lead length, @TA =75 IF(AV) 1.0 A IFSM 25.0 A Peak forw ard surge current 8.3ms single half-sine-w ave superimposed on rated load @TJ =70 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 10.0 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 0281063 BLGALAXY ELECTRICAL 1. RATINGS AND CHARACTERISTIC CURVES SX5817 --- SX5819 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 SX5 81 7 AMPERES SX5819 SX5 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 0281063 BLGALAXY ELECTRICAL 2.