SF21-SF28 2.0A Axial Leaded Super Fast Rectifier Features · The plastic package carries Underwriters Laboratory · · · · Flammability Classification 94V-0 Super fast switching for high efficiency Low reverse leakage High forward surge current capability High temperature soldering guarantteed: 250 C/10 seconds,0.375”(9.5mm) lead length, 5 lbs. (2.3kg) tension B A A C D DO-15 Mechanical Data Dim Min Max A 25.40 ¾ · Case: JEDEC DO-15 molded plastic body · Terminals: Plated axial leads, solderable per MIL-STD-750, Method 2026 · Polarity: Color band denotes cathode end B 5.50 7.62 C 0.686 0.889 D 2.60 3.60 · Mounting Position: Any · Weight:0.014 ounce, 0.40 grams All Dimensions in mm Maximum Ratings and Electrical Characteristics @ TA = 25°C unless otherwise specified Single phase, half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%. Maximum repetitive peak reverse voltage Maximum RMS voltage Maximum DC blocking voltage Maximum average forward rectified current 0.375”(9.5mm) lead length at TA=55 C Peak forward surge current 8.3ms single half sine-wave superimposed on rated load (JEDEC Method) Maximum instantaneous forward voltage at 2.0A Maximum DC reverse current TA=25 C at rated DC blocking voltage TA=100 C Maximum reverse recovery time (NOTE 1) Typical junction capacitance (NOTE 2) Typical thermal resistance (NOTE 3) Operating junction and storage temperature range SYMBOLS SF21 SF22 SF23 SF24 SF25 SF26 SF28 UNITS VRRM VRMS VDC 50 35 50 100 70 100 150 105 150 200 140 200 300 210 300 400 280 400 600 420 600 VOLTS VOLTS VOLTS I(AV) 2.0 Amps IFSM 50.0 Amps 0.95 VF 1.25 5.0 50.0 IR trr uA ns 35 CJ 60.0 RqJA TJ,TSTG 30.0 50.0 -65 to +150 Note:1.Reverse recovery condition IF=0.5A,IR=1.0A,Irr=0.25A 2.Measured at 1MHz and applied reverse voltage of 4.0V D.C. 3.Thermal resistance from junction to ambient at 0.375”(9.5mm)lead length,P.C.B. mounted 1 of 2 Volts pF C/W C AVERAGE FORWARD RECTIFIED CURRENT, AMPERES FIG. 1- FORWARD CURRENT DERATING CURVE FIG. 2-MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT 1.6 1.2 Single Phase Half Wave 60Hz Resistive or inductive Load 0.8 0.4 0 0 25 50 50 £PEAK FORWARD SURGE CURRENT, AMPERES 2.0 75 100 125 150 40 30 20 8.3ms SINGLE HALF SINE-WAVE (JEDEC Method) 10 175 0 1 10 AMBIENT TEMPERATURE, C 100 NUMBER OF CYCLES AT 60 Hz FIG. 3-TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS FIG. 4-TYPICAL REVERSE CHARACTERISTICS 1,000 10 INSTANTANEOUS REVERSE CURRENT, MICROAMPERES INSTANTANEOUS FORWARD CURRENT,AMPERES 20 TJ=25 C PULSE WIDTH=300 ms 1%DUTY CYCLE 1 0.1 SF21-SF24 SF25-SF28 0.01 0 0.4 0.8 1.2 1.6 1.8 100 10 TJ=100 C 1 0.1 TJ=25 C 0.01 INSTANTANEOUS FORWARD VOLEAGE, VOLTS 40 60 80 TJ=25 C 10 SF21-SF24 SF25-SF28 100 10 1 0.1 0.01 0.1 1 10 1 0.1 1.0 10 100 FIG. 6-TYPICAL TRANSIENT THERMAL IMPEDANCE TRANSIENT THERMAL IMPEDANCE, C/W FIG. 5-TYPICAL JUNCTION CAPACITANCE JUNCTION CAPACITANCE, pF 20 PERCENT OF PEAK REVERSE VOLTAGE,% 200 100 0 100 REVERSE VOLTAGE,VOLTS t,PULSE DURATION,sec. 2of2 100