BL GALAXY ELECTRICAL SF31 - - - SF38 VOLTAGE RANGE: 50 --- 600 V CURRENT: 3.0 A SUPER FAST RECTIFIER FEATURES DO - 27 Low cost Low leakage Low forward voltage drop High current capability Easily cleaned with alcohol,Isopropanol and similar solvents The plastic material carries U/L recognition 94V-0 MECHANICAL DATA Case:JEDEC DO--27,molded plastic Terminals: Axial lead ,solderable per MIL- STD-202,Method 208 Polarity: Color band denotes cathode Weight: 0.041 ounces,1.15 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%. SF31 SF32 SF33 SF34 SF35 SF36 SF37 SF38 UNITS Maximum recurrent peak reverse voltage VRRM 50 100 150 200 300 400 500 600 V Maximum RMS voltage VRMS 35 70 105 140 210 280 350 420 V Maximum DC blocking voltage VDC 50 100 150 200 300 400 500 600 V Maximum average forw ard rectified current 9.5mm lead length, @TA=75 IF(AV) 3.0 A IFSM 125.0 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 Maximum reverse current @TA=25 at rated DC blocking voltage @TA=100 0.95 VF 1.3 5.0 IR 35 (Note1) trr Typical junction capacitance (Note2) CJ Typical thermal resistance (Note3) RθJA 20 TJ - 55 ----- + 150 TSTG - 55 ----- + 150 Storage temperature range 100 V A 50.0 Maximum reverse recovery time Operating junction temperature range 1.7 ns 50 pF /W www.galaxycn.com NOTE: 1. Measured with I F=0.5A, I R=1A, I rr=0.25A. 2. Measured at 1.0MHZ and applied rev erse v oltage of 4.0V DC. 3. Thermal resistance f rom junction to ambient. Document Number 0264003S BLGALAXY ELECTRICAL 1. RATINGS AND CHARACTERISTIC CURVES SF31 - - - SF38 FIG.1 -- TEST CIRCUIT DIAGRAM AND REV ERSE RECOVERY TIM E CHARACTERISTIC trr 10 N 1. 50 N 1. + 0 .5 A D.U.T. 0 PULSE GENERATOR (NOTE2) (+) 25VDC (approx) (-) -0 .2 5 A OSCILLOSCOPE (NOTE 1) 1 NONINDUCTIVE -1 .0 A 1 c m N OTES:1 .R ISE TIME = 7n s MAX.IN PU T IMPED AN C E = 1M .2 2p F. JJJJJ2.R ISE TIME =10 ns MAX.SOU R C E IMPED AN C E=5 0 . SE T TIM E BA SE FOR 10 ns/cm SF31-SF34 3.0 SF37-SF38 2.0 1.0 Single Phase Half Wave 60HZ Resistive or Inductive Load 0.375"(9.5mm)Lead Length 5.0 4.0 3.0 2.0 1.0 0 0 1.5 1.7 1.9 25 INSTA NTANE OUS FORW ARD VOLTAGE , VOLTS 20 10 SF35 - SF38 6 4 TJ=25 2 1 0.1 0.2 0.4 1 2 4 10 20 40 100 100 125 150 175 175 150 8.3ms Single Half Sine-Wave 125 AMPERES 40 75 FIG.5 -- PEAK FORW ARD SURGE CURRENT PEAK FORWARD SURGE CURRENT JUNCTION CAPACITANCE,pF SF31 - SF34 60 50 A M BIENT TE M P ERA TURE, FIG.4 -- TYPICAL JUNCTION CAPACITANCE 200 100 z 6.0 AMPERES SF35-SF36 0.5 0.7 0.9 1.1 1.3 FIG.3 -- FORW ARD DERATING CURVE AVERAGE FORWARD CURRENT 4.0 AMPERES INSTANTANEOUS FORWARD CURRENT FIG.2 -- TYPICAL FORW ARD CHARACTERISTIC REV ERS E V OLTA GE ,VOLTS 100 75 50 25 0 1 5 10 50 100 NUM B ER OF CYCLES AT 60Hz www.galaxycn.com Document Number 0264003S BLGALAXY ELECTRICAL 2.