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| SF21 thru SF26 SUPER FAST RECTIFIER CHENG- YI ELECTRONIC SUPER FAST RECTIFIER VOLTAGE RANGE-50 to 400 Volts CURRENT-2.0 Amperese FEATURES High reliability Low leakage Low forward voltage High current capability Super fast switching speed High surge capability Good for switching mode circuit 1.0(25.4) MIN. .034(0.9) DIA. .028(0.7) .300(7.6) .230(5.8) .140(3.6) DIA. .104(2.6) 1.0(25.4) MIN. MECHANICAL DATA Case:Molded plastic Epoxy:UL94V-0 rate flame retardant Lead:MIL-STD-202E method 208C quaranted Mounting position:Any Weigh:0.38 grams MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 250C ambient temperature unless otherwise specified. Signle phase, half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%. MAXIMUM RATINGS ( At TA=250C unless otherwise noted) RATINGS Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current .375" (9.5mm) lead length @TA=550C Peak Forward Surge Current, 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) Typical Junction Capacitance (Note 2) Operating and Storage Temperature Range 0 SYMBOL VRRM VRMS VDC IO SF21 50 35 50 SF22 100 70 100 SF23 150 105 150 2.0 SF24 200 140 200 SF25 300 210 300 SF26 400 280 400 UNITS Volts Volts Volts Amps IFSM CJ TJ TSTG 30 75 20 -65 to +150 Amps pF 0 C ELECTRICAL CHARACTERISTICS ( At TA=25 C unless otherwise noted) CHARACTERISTICS Maximum Instantaneous Forward Voltage at 2.0A DC Maximum DC Reverse Current at Rated DC Blocking Voltage @TA=25 C @TA=1500C 0 SYMBOL VF IR trr SF21 SF22 0.95 SF23 SF24 SF25 1.25 SF26 UNITS Volts uAmps uAmps nSec 5.0 50 35 Maximum Reverse Recovery Time (Note1) Notes : 1.Test Condition: IF=0.5A, IR=1.0A, IRR=0.25A 2.Measured at 1 MHz and applied reverse voltage of 4.0 volts SF21 thru SF26 SUPER FAST RECTIFIER CHENG- YI ELECTRONIC RATING AND CHARACTERISTICS CURVES SF21 THRU SF26 Fig.1 - TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC +0.5A (-) D.U.T. PULSE GENERATOR (NOTE 2) Fig. 2 - TYPICAL FORWARD CURRENT DERATING CURVE AVERAGE FORWARD CURRENT, (A) 3.0 SINGLE PHASE HALF WAVE 60Hz RESISTIVE OR INOUCTIVE LOAD 50 NONINDUCTIVE (+) 25 Vdc (approx.) (-) 1 NONINDUCTIVE 10 NONINDUCTIVE trr 0 -0.25 2.0 OSCILLOSCOPE (NOTE 1) (+) -1.0A 1cm 1.0 SET TIME BASE FOR 10 /20 ns/cm 0 25 50 75 100 125 150 175 NOTES : 1. Rise Time=7ns max., Input Impedance= 1 megohm, 22pF . 2. Rise Time=10ns max., Source Impedance= 50 ohms. AMBIENT TEMPERATURE, 0C Fig.3 - TYPICAL REVERSE CHARACTERISTICS 100 Fig. 4 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 10.0 INSTANTANEOUS REVERSE CURRENT, ( A) INSTANTANEOUS FORWARD CURRENT, AMPERES 0 TJ=150C ~S 21 SF 1.0 .1 0.1 0 TJ=25C .01 Pulse Width-300 s 1% DUTY CYCLE .001 .2 .4 .6 .8 1.0 1.2 1.4 .01 20 40 60 80 100 120 PERCENT OF RATED PEAK REVERSE VOLTAGE, (%) INSTANTANEOUS FORWARD VOLT AGE, VOLTS Fig.5 -MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT 40 Fig.6 - TYPICAL JUNCTION CAPACIT ANCE 200 PEAK FORWARD SURGE CURRENT, (A) JUNCTION CAPACITANCE, pF 30 25 20 15 10 5 1 2 5 8.3ms Single Half Sine Wave JEDEC Method 100 60 40 20 10 6 4 2 1 .1 .2 .4 1.0 2 4 10 20 40 100 TJ = 25 C 0 SF TJ=100C 25 0 ~S F2 1.0 6 10 F2 TJ = 25 C 4 0 SF 21 ~ SF SF2 24 5~ SF2 6 10 20 50 100 NUMBER OF CYCLES AT 60 Hz REVERSE VOLTAGE, (V) |
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