SF31 DYELEC
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Maximum Ratings and Electrical Characteristics Type Number Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current.375"(9.5mm) lead length @TA=55℃ 3.0 Peak Forward Surge Current 8.3ms Single half sine-wave superimposed on rated load (JEDEC Method) 125 Forward Voltage @IF=3.0A 0.95 1.25 Peak Reverse Current @TA=25℃ 5.0 At Rated DC Blocking Voltage @TA=100℃ 100 Typical Junction Capacitance (Note 1) 70 45 Typical Thermal Resistance Junction to Ambient(Note 2) 20 Maximum Reverse Recovery Time(Note 3) 35 Operating Temperature Range -55 to +125 /Storage Temperature Range -55 to +150 Note:1. Measured at 1.0 MHz and Applied reverse Voltage of 4.0V D.C 2. Leads maintained at ambient temperature at a distance of 9.5mm from the case 3.Reverse Recovery Test Conditions: IF=0.5A, IR=1A, Irr=0.25A version:01 1of2 www.dyelec.com IR uA TSTG .0 AMP. Super Fast Rectifiers Plastic material UL 94V flammability Dimensions in inches and (millimeters) MIN. MIN. DIA. DIA. DO-201AD 0.96（24.5） 0.96（24.5）
C version:01 2of2 www.dyelec.com SF31 THRU SF38 2FIG. 1 – FORWARD CURRENT DERATING CURVE AMBIENT TEMPERATURE ( ) AVERAGE FORWARD CURRENT( A ) 1.0 2.0 3.0 50 75 100 125 150 175 0.5 1.5
2.5 SINGLE PHASE HALF WAVE 60Hz
RESISTIVE OR INDUCTIVE LOAD FIG. -TYPICAL FORWARD CHARA TERISTICS INSTANTANEOUS FORWARD CURRENT,(A) INSTANTANEOUS FORWARD VOLTAGE (V) 4 3 FIG. –MAXIMUM NON-REPETITIVE SURGE CURRENT NUMBER OF CYCLES AT 60Hz PEAK FORWARD SURGE CURRENT ( A ) PULSE WIDTH 8.3ms SINGLE HALF-SINE-WAVE (JEDEC METHOD) 200 150 100 1005020101 2 5 100 100101 4 FIG. –TYPICAL JUNCTION CAPACITANCE CAPACITANCE, (pF) REVERSE VOLTAGE, (V ) TJ = 25°C f = 1 MHz SF31-SF34 SF35-SF38 0.1 1.0 .01 Pulse Width 300us 1% Duty Cycle 3.0 TA=25 C S F S F S F S F S F