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| SF31 THRU SF37 Features * Low forward voltage drop * High current capability * High reliability * High surge current capability * Super fast recovery time * Good for use in switching mode circuits * Plastic package has Underwrites Laboratory Flammability Classification 94V-0 CURRENT 3.0 Amperes VOLTAGE 50 to 600 Volts DO-201AD 0.210(5.3) 0.188(4.8) DIA. 1.0(25.4) MIN. Mechanical Data * Case : JEDEC DO-201AD molded plastic body * Terminals : Plated axial lead solderable per MIL-STD-750, method 2026 * Polarity : Color band denotes cathode end * Mounting Position : Any * Weight : 0.042 ounce, 1.18 gram 0.375(9.5) 0.285(7.2) 0.042(1.1) 0.037(0.9) DIA. 1.0(25.4) MIN. Dimensions in inches and (millimeters) Maximum Ratings And Electrical Characteristics (Ratings at 25E ambient temperature unless otherwise specified, Single phase, half wave 60Hz, resistive or inductive load. For capacitive load, derate by 20%) Symbols Maximum recurrent peak reverse voltage Maximum RMS voltage Maximum DC blocking voltage Maximum average forward rectified current 0.375"(9.5mm) lead length at TA=55E Peak forward surge current 8.3ms single half sine-wave superimposed on rated load (JEDEC method) Maximum instantaneous forward voltage at 3.0A Maximum DC reverse current at rated DC blocking voltage TA=25E TA=100E Trr CJ TJ TSTG VRRM VRMS VDC I(AV) IFSM VF IR SF31 50 35 50 SF32 100 70 100 SF33 150 105 150 SF34 200 140 200 3.0 125 SF35 300 210 300 SF36 400 280 400 SF37 600 420 600 Units Volts Volts Volts Amps Amps 0.95 5.0 100 35 100 -55 to +125 -55 to +150 1.30 1.70 Volts iA ns 80 pF E Maximum reverse recovery time (Note 1) Typical junction capacitance (Note 2) Operating junction and storage temperature range Notes: (1) Test conditions: IF=0.5A, IR=1.0A, Irr=0.25A. (2) Measured at 1MHz and applied reverse voltage of 4.0 Volts. RATINGS AND CHARACTERISTIC CURVES SF31 THRU SF37 50 FIG . 1 -REVERSE RECOVERY TIME CHARACTERISTIC NONINDUCTIVE +0.5A AVERAGE FORWARD CURRENT . (A ) NONINDUCTIVE 10 AND TEST CIRCUIT DIAGRAM trr FIG . 2 -MAXIMUM AVERAGE FORWARD CURRENT DERATING 3.0 2.5 2.0 1.5 SINGLE PHASE 1.0 RESISTIVE OR 0.5 0.375"(9.5m m) 0 LEAD LENGTH HALF WAVE 60Hz INDUCTIVE LOAD 55 OC (+ ) DUT 50Vdc (approx) (-) NONINDUCTIVE OSCILLOSCOPE (NOTE 2 ) PULSE GENERATOR (NOTE 2 ) 0 -0.25A NOTES: 1 . RISE TIME = 7nsmax. INPUT IMPEDANCE= 1 MEGOHM 22p 2 . RISE TIME = 10ns max. SOURSE IMPEDANCE = 50ohmsf FIG . 3 -TYPICAL REVERSE CHARACTERISTICS 1000 A) -1.0A 1cm SET TIME BASE FOR 5/ 10ns / cm AMBIENT TEMPERATURE . ( C) O 25 50 75 100125 150 175 FIG . 4 -TYPICAL REVERSE CHARACTERISTICS 100.0 INSTANTANEOUS FORWARD CURRENT. (A) INSTANTA NEOUS REVERSE CURRET . ( 100 Tj=100 C O 10.0 SF 31 F 34 S 5 F3 -S 36 -S 10 1.0 SF 37 Tj=25 C O 1 0.1 o Tj=25C Pulse Width=300 1% Duty Cycle s 1.6 .1 0 20 40 60 80 100 120 .01 0.2 0.4 0.6 0.8 1.0 1.2 1.4 PERCENT OF RA TED PEAK REVERSE VOL TAGE . (% ) FIG . 5 -MAXIMUM NON- REPETITIVE FOR WARD SUREG CURRENT 175 150 125 100 75 50 25 0 1 2 5 10 20 50 1 00 JUNCTION CAPACITANCE(pF) FORWARD VOLTAGE . ( V ) FIG . 6 -TYPICAL JUNCTION CAP ACITANCE 200 180 160 140 120 100 80 60 .1 S F3 PEAK FORWARD SURGE CURRENT . (A) 8.3ms Single Half Sine Wave JEDEC Method S F3 1 -S F34 5 -S F37 .5 NUMBER OF CYCLES AT 60Hz 125 10 20 50 100 200 REVERSE VOLTAGE . ( V) 500 1000 |
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