SF31 THRU SF38 3.0 AMP SUPER FAST RECTIFIERS VOLTAGE RANGE 50 to 600 Volts CURRENT 3.0 Amperes FEATURES * Low forward voltage drop * High current capability * High reliability * High surge current capability * Good for switching mode application DO-27 .220(5.6) .197(5.0) DIA. 1.0(25.4) MIN. MECHANICAL DATA * Case: Molded plastic * Epoxy: UL 94V-0 rate flame retardant * Lead: Axial leads, solderable per MIL-STD-202, method 208 guranteed * Polarity: Color band denotes cathode end * Mounting position: Any .375(9.5) .285(7.2) 1.0(25.4) MIN. .052(1.3) .048(1.2) DIA. * Weight: 1.10 grams Dimensions in inches and (millimeters) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Rating 25 C ambient temperature uniess otherwies specified. Single phase half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%. TYPE NUMBER Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current SF31 SF32 SF33 SF34 SF35 SF36 50 35 50 100 70 100 150 105 150 200 140 200 300 210 300 400 280 400 .375"(9.5mm) Lead Length at Ta=55 C Peak Forward Surge Current, 8.3 ms single half sine-wave SF38 UNITS 600 420 600 A 3.0 125 superimposed on rated load (JEDEC method) Maximum Instantaneous Forward Voltage at 3.0A Maximum DC Reverse Current Ta=25 C 5.0 A V µA 50 35 µA nS 50 +150 pF C 1.25 0.95 at Rated DC Blocking Voltage Ta=100 C Maximum Reverse Recovery Time (Note 1) Typical Junction Capacitance (Note 2) Operating and Storage Temperature Range TJ, TSTG -65 NOTES: 1. Reverse Recovery Time test condition: IF=0.5A, IR=1.0A, IRR=0.25A 2. Measured at 1MHz and applied reverse voltage of 4.0V D.C. 48 V V V 1.70 RATING AND CHARACTERISTIC CURVES (SF31 THRU SF38) FIG.2-TYPICAL FORWARD CURRENT DERATING CURVE FIG.1- TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC trr 10Ω NONINDUCTIVE ( ) (+) D.U.T. 25Vdc (approx.) PULSE GENERATOR (NOTE 2) ( ) 1Ω NONINDUCTIVE | | | | | | | | +0.5A 0 AVERAGE FORWARD CURRENT,(A) 50Ω NONINDUCTIVE -0.25A (+) OSCILLISCOPE (NOTE 1) -1.0A NOTES: 1. Rise Time= 7ns max., Input Impedance= 1 megohm.22pF. 1cm 2. Rise Time= 10ns max., Source Impedance= 50 ohms. SET TIME BASE FOR 3.0 2.5 2.0 Single Phase 1.5 Half Wave 60Hz Resistive Or Inductive Load 1.0 0.375"(9.5mm) Lead Length 0.5 0 0 25 50 FIG.4-TYPICAL REVERSE CHARACTERISTICS CHARACTERISTICS 50 10 10 REVERSE LEAKAGE CURRENT, (µA) 50 SF 34 SF 38 ~S F3 6 SF 3 1~ 1.0 SF 35 INSTANTANEOUS FORWARD CURRENT,(A) FIG.3-TYPICAL FORWARD 3.0 Tj=25 C Pulse Width 300us 1% Duty Cycle 0.1 .01 .4 .6 .8 1.0 1.2 1.4 1.6 75 100 125 150 175 AMBIENT TEMPERATURE,( C) 50 / 10ns / cm 3.0 1.0 Tj=100 C Tj=25 C 0.1 .01 1.8 0 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE,(%) FORWARD VOLTAGE,(V) FIG.6-TYPICAL JUNCTION CAPACITANCE FIG.5-MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT 175 JUNCTION CAPACITANCE,(pF) PEAK FORWARD SURGE CURRENT,(A) 125 100 75 Tj=25 C 8.3ms Single Half Sine Wave 50 JEDEC method 25 150 125 100 75 50 25 0 0 1 5 10 50 100 NUMBER OF CYCLES AT 60Hz .01 .05 .1 .5 1 REVERSE VOLTAGE,(V) 49 5 10 50 100