BL GALAXY ELECTRICAL SF21- - - SF28 VOLTAGE RANGE: 50 --- 600 V CURRENT: 2.0 A SUPER FAST RECTIFIER FEATURES DO - 15 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--15,molded plastic Terminals: Axial lead ,solderable per MIL- STD-202,Method 208 Polarity: Color band denotes cathode Weight: 0.014 ounces,0.39 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%. SF21 SF22 SF23 SF24 SF25 SF26 SF27 SF28 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) 2.0 A IFSM 50 A Peak forw ard surge current 8.3ms single half-sine-w ave superimposed on rated load @TJ=125 Maximum instantaneous forw ard voltage @ 2.0A Maximum reverse current @TA=25 at rated DC blocking voltage @TA=125 0.95 VF 1.3 5.0 IR 35 (Note1) trr Typical junction capacitance (Note2) CJ Typical thermal resistance (Note3) RθJA 20 TJ - 55 ----- + 125 TSTG - 55 ----- + 150 Storage temperature range 60 ns 30 NOTE: 1. Measured with I F=0.5A, I R=1A, I rr=0.25A. V A 50.0 Maximum reverse recovery time Operating junction temperature range 1.7 pF /W 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 0264002 BLGALAXY ELECTRICAL 1. RATINGS AND CHARACTERISTIC CURVES SF21 - - - SF28 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 0.1 Single Phase Half Wave 60HZ Resistive or Inductive Load 0.375"(9.5mm)Lead Length 2.5 2.0 1.5 1.0 0.5 0 0 25 50 75 100 125 150 175 Tj=25oC Pulse Width=300 s 1% Duty Cycle 0.01 .4 .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.5 -- PEAK FORW ARD SURGE CURRENT SF21 - SF24 60 40 20 10 SF25 - SF28 6 4 TJ=25 2 1 0.1 0.2 0.4 1 2 4 10 20 40 REV ERS E V OLTA GE ,VOLTS 100 70 60 8.3ms Single Half Sine-Wave 50 AMPERES 200 100 PEAK FORWARD SURGE CURRENT FIG.4 -- TYPICAL JUNCTION CAPACITANCE JUNCTION CAPACITANCE,pF z 3.0 AMPERES 1 SF 25 ~S F2 SF 6 27 ~S F2 8 SF 21~ SF 24 10 FIG.3 -- FORW ARD DERATING CURVE AVERAGE FORWARD CURRENT 100 AMPERES INSTANTANEOUS FORWARD CURRENT FIG.2 -- TYPICAL FORW ARD CHARACTERISTIC 40 30 20 10 0 1 5 10 50 100 NUM B ER OF CYCLES AT 60Hz www.galaxycn.com Document Number 0264002 BLGALAXY ELECTRICAL 2.