SF31

SF31 - SF39 PRV : 50 - 1000 Volts Io : 3.0 Amperes FEATURES : * * * * * * * High current capability High surge current capability High reliability Low reverse current Low forward voltage drop Super fast recovery time Pb / RoHS Free SUPER FAST RECTIFIER DIODES DO-201AD 0.21 (5.33) 0.19 (4.82) 1.00 (25.4) MIN. 0.375 (9.52) 0.285 (7.24) MECHANICAL DATA : * Case : DO-201AD Molded plastic * Epoxy : UL94V-O rate flame retardant * Lead : Axial lead solderable per MIL-STD-202, Method 208 guaranteed * Polarity : Color band denotes cathode end * Mounting position : Any * W eight : 1.16 grams 0.052 (1.32) 0.048 (1.22) 1.00 (25.4) MIN. Dimensions in inches and ( millimeters ) Rating at 25 °C ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20%. MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS RATING Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Current 0.375"(9.5mm) Lead Length Ta = 55 °C Maximum Peak Forward Surge Current, 8.3ms Single half sine wave Superimposed on rated load (JEDEC Method) Maximum Peak Forward Voltage at IF = 3.0 A. Maximum DC Reverse Current at Rated DC Blocking Voltage Tj = 25 °C Tj = 100 °C SYMBOL SF31 SF32 SF33 SF34 SF35 SF36 SF37 SF38 SF39 VRRM VRMS VDC IF(AV) IFSM VF IR IR(H) Trr UNIT V V V A A 50 35 50 100 70 100 150 105 150 200 140 200 300 210 300 3.0 125 400 280 400 600 420 600 800 560 800 1000 700 1000 0.95 10 500 35 50 1.7 4.0 V µA ns pf °C °C Maximum Reverse Recovery Time ( Note 1 ) Typical Junction Capacitance ( Note 2 ) Junction Temperature Range Storage Temperature Range CJ TJ TSTG - 65 to + 150 - 65 to + 150 Notes : ( 1 ) Reverse Recovery Test Conditions : IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A. ( 2 ) Measured at 1.0 MHz and applied reverse voltage of 4.0 VDC Page 1 of 2 Rev. 05 : March 25, 2005 RATING AND CHARACTERISTIC CURVES ( SF31 - SF39 ) FIG.1 - REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM 50 Ω 10 Ω + 0.5 D.U.T. 50 Vdc (approx) 1Ω PULSE GENERATOR ( NOTE 2 ) OSCILLOSCOPE ( NOTE 1 ) 0 - 0.25 Trr + - 1.0 A SET TIME BASE FOR 15 ns/cm NOTES : 1. Rise Time = 7 ns max., Input Impedance = 1 megaohm, 22 pF. 2. Rise time = 10 ns max., Source Impedance = 50 ohms. 3. All Resistors = Non-inductive Types. 1 cm FIG.2 - DERATING CURVE FOR OUTPUT RECTIFIED CURRENT 3.0 FIG.3 - MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT 125 AVERAGE FORWARD OUTPUT CURRENT, AMPERES 2.4 PEAK FORWARD SURGE CURRENT, AMPERES 8.3 ms SINGLE HALF SINE Ta = 50 °C 100 1.8 75 1.2 50 0.6 60Hz RESISTIVE OR INDUCTIVE LOAD 0 0 25 50 75 100 125 150 175 25 0 1 2 4 6 10 20 40 60 100 AMBIENT TEMPERATURE, ( °C) NUMBER OF CYCLES AT 60Hz FIG.4 - TYPICAL FORWARD CHARACTERISTICS 100 SF31 - SF34 SF35 - SF37 FIG.5 - TYPICAL REVERSE CHARACTERISTICS 1000 FORWARD CURRENT, AMPERES REVERSE CURRENT, MICROAMPERES 10 100 TJ = 100 °C 1.0 SF38 - SF39 10 0.1 Pulse Width = 300 µ s 2% Duty Cycle TJ = 25 °C 0.01 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 1 TJ = 25 °C 0.1 0 20 40 60 80 100 120 140 FORWARD VOLTAGE, VOLTS PERCENT OF RATED REVERSE VOLTAGE, (%) Page 2 of 2 Rev. 05 : March 25, 2005