SF34

SF31 THRU SF38 3.0AMPS. SUPER FAST RECTIFIERS DO-27/DO-201AD FEATURE .High current capability .Low forward voltage drop .Low power loss, high efficiency .High surge capability .High temperature soldering guaranteed 260°C /10sec/ 0.375" lead length at 5 lbs tension .Super fast recovery time for high efficiency. 0.96(24.4) MIN. .220(5.6) .187(5.0) + .375(9.5) .335(8.5) MECHANICAL DATA .Terminal: Plated axial leads solderable per MIL-STD 202E, method 208C .Case: Molded with UL-94 Class V-0 recognized Flame Retardant Epoxy .Polarity: color band denotes cathode .Mounting position: any DIA. - 0.96(24.4) MIN. .051(1.3) .043(1.1) DIA. Dimensions in inches and (millimeters) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25℃ ambient temperature unless otherwise 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 .375"(9.5mm) lead length at TA =55°C SYM BOL SF 31 SF 32 SF 33 SF 34 SF 35 SF 36 SF 37 SF 38 units VRRM VRMS VDC 50 100 150 200 300 400 500 600 V 35 70 105 140 210 280 350 420 V 50 100 150 200 300 400 500 600 V IF(AV) 3.0 A IFSM 90.0 A Peak Forward Surge Current 8.3ms single half sine-wave superimposed on rated load (JEDEC method) Maximum Instantaneous forward Voltage at 3.0A DC Maximum DC Reverse Current at rated DC blocking voltage @TA =25°C @TA =100°C Maximum Reverse Recovery Time (Note 1) Typical Junction Capacitance (Note 2) Typical Thermal Resistance (Note 3) Storage Temperature Operation JunctionTemperature VF 0.95 1.3 1.7 5.0 IR µA 100.0 trr CJ R(JA) TSTG TJ 35 100 nS 80 pF 50 °C/W -55 to +150 °C -55 to +150 °C Note: 1. Test Conditions: IF=0.5A, IR=1.0A, IRR=0.25A 2. Measured at 1.0 MHz and applied reverse voltage of 4.0Vdc 3. Thermal Resistance from Junction to Ambient at 0.375"（9.5mm）lead length, vertical P.C.Board Mounted. - 419 - V RATING AND CHARACTERISTIC CURVES (SF31 THRU SF38) Single Phase Half Wave 60Hz Resistive or inductive Load 50 V20 0V FIG.2-TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS INSTANEOUS FORWARD CURRENT,(A) AVERGE FORWARD RECTIFIED CURRENT,(A) FIG.1-TYPICAL FORWARD CURRENT DERATING CURVE V 00 0-4 0 3 V 00 -6 0 50 TJ=25℃ Pulse Width=300μs 1% Duty Cycle 120 8 INSTANEOUS FORWARD VOLTAGE,(V) FIG.3-MAXIMUN NON-REPETITIVE FORWARD SURGE CURRENT FIG.4-TYPICAL REVERSE CHARACTERISTICS 8.3ms Single Half Sine-Wave (JEDEC Method) INSTANEOUS REVERSE CURRENT,(μA) PEAK FORWARD SURGE CURRENT,(A) 4 AMBIENT TEMPERTURE,(℃) TJ=25℃ PERCENT OF RATED PEAK REVERSE VOLTAGE,(%) NUMBER OF CYCLES AT 60Hz FIG.5-TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERSITIC 50 Ω NONINDUCTIVE (+) 25Vdc (approx) (-) 10 Ω NONINDUCTIVE (+) PULSE GENERATOR (NOTE 2) 1Ω (NOTE 1) NON- OSCILOSCOPE INDUCTIVE (-) NOTES:1. Rise Time=7ns max, Input Impedance= 1 megohm.22pF. 2. Rise Time=10ns max, Souce Impedance= 50 ohms. - 420 -