SF54

BL GALAXY ELECTRICAL SUPER FAST RECTIFIER FEATURES 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 SF51 --- SF56 VOLTAGE RANGE: 50 --- 400 V CURRENT: 5.0 A 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%. SF51 Maximum recurrent peak reverse voltage Maximum RMS voltage Maximum DC blocking voltage Maximum average forw ard rectified current 9.5mm lead length, @TA=75 SF52 100 70 100 SF53 150 105 150 5.0 SF54 200 140 200 SF55 300 210 300 SF56 400 280 400 UNITS 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 150.0 A Maximum instantaneous forw ard voltage @ 5.0A Maximum reverse current @TA=25 VF IR trr CJ RθJA TJ TSTG 0.95 5.0 100.0 35 50 25 - 55 ----- + 150 - 55 ----- + 150 1.25 V A ns at rated DC blocking voltage @TA=100 Maximum reverse recovery time Typical junction capacitance Typical thermal resistance (Note1) (Note2) (Note3) 30 pF /W Operating junction temperature range Storage temperature range NOTE: 1. Measured with IF=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 0264004 BLGALAXY ELECTRICAL 1. RATINGS AND CHARACTERISTIC CURVES SF51 --- SF56 F IG.1 -- TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC 50 N 1. 10 N 1. t rr +0.5A D.U.T. 0 (+) 25VDC (approx) (-) 1 NONINDUCTIVE PULSE GENERATOR (NOTE2) OSCILLOSCOPE (NOTE 1) -0.25A -1.0A 1cm NOTES:1.RISE TIME = 7ns MAX.INPUT IMPEDANCE = 1M .22pF. JJJJJ2.RISE TIME =10ns MAX.SOURCE IMPEDANCE=50 . SET TIME BASE FOR 10 ns/cm F IG.2 -- TYPICAL FORW ARD CHARACTERISTIC INSTANTANEOUS FORWARD CURRENT 6.0 F IG.3 -- FORW ARD DERATING CURVE z AVERAGE FORWARD CURRENT 6.0 5.0 SF51---SF54 SF55---SF56 AMPERES 5.0 AMPERES 4.0 3.0 2.0 1.0 0 0 25 50 75 100 125 150 175 4.0 TJ =25 Pulse Width=300 µs Single Phase Half Wave 60HZ Resistive or Inductive Load 0.375"(9.5mm)Lead Length 3.0 0.3 0.5 0.7 0.9 1.1 1.3 1.5 INSTANTANEOUS FORW ARD VOLTAGE, VOLTS A MBIENT TEMPERATURE, F IG.4 -- TYPICAL JUNCTION CAPACITANCE PEAK FORWARD SURGE CURRENT F IG.5 -- PEAK FORW ARD SURGE CURRENT JUNCTION CAPACITANCE,pF 200 100 60 40 20 10 6 4 TJ=25 SF55 - SF56 SF51 - SF54 175 150 125 8.3ms Single Half Sine-Wave AMPERES 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 REVERSE VOLTAGE,VOLTS NUMBER OF CYCLES AT 60Hz www.galaxycn.com Document Number 0264004 BLGALAXY ELECTRICAL 2.