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| BL FEATURES GALAXY ELECTRICAL SF31G - - - SF38G VOLTAGE RANGE: 50 --- 600 V CURRENT: 3.0 A GLASS PASSIVATED RECTIFIERS Low cost Glass passivated junction Low forward voltage drop High current capability Easily cleaned with alcohol,Isopropanol and similar solvents The plastic material carries U/L recognition 94V-0 DO - 27 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 G Maximum recurrent peak reverse voltage Maximum RMS voltage Maximum DC blocking voltage Maximum average forw ard rectified current 9.5mm lead length, @TA=75 SF32 G 100 70 100 SF33 SF34 G G 150 105 150 200 140 200 3.0 SF35 SF36 SF37 SF38 UNITS G G G G 300 210 300 400 280 400 500 350 500 600 420 600 V V V A VRRM VRMS VDC IF(AV) 50 35 50 Peak forw ard surge current 8.3ms single half-sine-w ave superimposed on rated load @TJ=125 IFSM 125.0 A Maximum instantaneous forw ard voltage @ 3.0A Maximum reverse current @TA=25 VF IR trr CJ RJA TJ TSTG 0.95 5.0 50.0 35 100 20 - 55 ----- + 175 - 55 ----- + 175 1.3 1.7 V A ns at rated DC blocking voltage @TA=125 Maximum reverse recovery time Typical junction capacitance Typical thermal resistance (Note1) (Note2) (Note3) 50 pF /W Operating junction temperature range Storage temperature range NOTE: 1. Measured with I F=0.5A, I R=1A, I rr=0.25A. www.galaxycn.com 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 0269028 BLGALAXY ELECTRICAL 1. RATINGS AND CHARACTERISTIC CURVES trr 50 N 1. 10 N 1. SF31G - - - SF38G FIG.1 -- TEST CIRCUIT DIAGRAM AND REV ERSE RECOVERY TIM E CHARACTERISTIC + 0 .5 A D.U.T. (+) 25VDC (approx) (-) 1 NONINDUCTIVE PULSE GENERATOR (NOTE2) OSCILLOSCOPE (NOTE 1) 0 -0 .2 5 A -1 .0 A 1cm 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 FIG.2 -- TYPICAL FORW ARD CHARACTERISTIC INSTANTANEOUS FORWARD CURRENT 100 FIG.3 -- FORW ARD DERATING CURVE z AVERAGE FORWARD CURRENT 6.0 5.0 Single Phase Half Wave 60HZ Resistive or Inductive Load 0.375"(9.5mm)Lead Length AMPERES 10 SF 31G ~S F3 4G AMPERES SF 35 G~ SF SF 36 37 G G~ SF 38 G 4.0 3.0 2.0 1.0 0 0 1 0.1 25 50 75 100 125 150 175 0.01 .4 Tj=25oC Pulse Width=300 s 1% Duty Cycle .6 .8 1.0 1.2 1.4 1.6 1.8 INSTA NTANE OUS FORW ARD VOLTAGE , VOLTS A M BIENT TE M P ERA TURE, FIG.4 -- TYPICAL JUNCTION CAPACITANCE FIG.5 -- PEAK FORW ARD SURGE CURRENT PEAK FORWARD SURGE CURRENT JUNCTION CAPACITANCE,pF 200 100 60 40 20 10 6 4 TJ=25 SF35G-SF38G SF31G-SF34G 175 150 125 AMPERES 8.3m Single Half s Sine-W ave 100 75 50 25 0 1 5 10 50 100 2 1 0.1 0.2 0.4 1 2 4 10 20 40 100 REV ERS E V OLTA GE ,VOLTS NUM B ER OF CYCLES AT 60Hz Document Number 0269028 BLGALAXY ELECTRICAL www.galaxycn.com 2. |
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