31DF4 LUGUANG | Alldatasheet
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Dimensions in inches and (millimeters) DO-201AD F e a t u r e s /cuspopen High efficiency, Low VF /cuspopen High current capability /cuspopen High reliability /cuspopen High surge current capability /cuspopen Low power loss. Mechanical Data /cuspopen Cases: Molded plastic /cuspopen Epoxy: UL 94V-0 rate flame retardant /cuspopen Polarity: Color band denotes cathode end /cuspopen High temperature soldering guaranteed: 260 o C/10 seconds/.375”,(9.5mm) lead lengths at 5 lbs., (2.3kg) tension /cuspopen Weight: 1.2 grams Maximum Ratings and Electrical Characteristics Rating at 25 oC ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20% Type Number Symbol 31DF4 31DF6 Units Maximum Recurrent Peak Reverse Voltage VRRM 400 600 V Maximum RMS Voltage VRMS 280 420 V Maximum DC Blocking Voltage VDC 400 600 V Maximum Average Forward Rectified Current .375 (9.5mm) Lead Length @TA = 29 o C (Note 1) @T L = 109 o C I(AV) 1.2 3.0 A Peak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method ) IFSM 45 A Maximum Instantaneous Forward Voltage @ 3.0A VF 1.7 V Maximum DC Reverse Current @ T A=25 o C at Rated DC Blocking Voltage @ T A=125 o C IR 20 100 uA Maximum Reverse Recovery Time (Note 3) Trr 35 nS Typical Thermal Resistance ( Note 2 ) RθJA 80 oC/W Operating Temperature Range TJ -40 to +150 oC Storage Temperature Range TSTG -40 to +150 oC 2. Thermal Resistance from Junction to Ambient .375” (9.5mm) Lead Length. 3. Reverse recovery Test Condition: Ta = 25℃, IFM=3A, di/dt = 50A / Us. 31DF4-31DF6 3.0 AMP. Super Fast Rectifiers http://www.luguang.cn mail:lge@luguang.cn
PERCENT OF RATED PEAK REVERSE VOLTAGE. (%) FIG.1- MAXIMUM FORWARD CURRENT DERATING CURVE 175 Single Phase Half Wave 50 HZ Inductive Load 0.375" (9.5mm) Lead Length AVERAGE FORWARD RECTIFIED CURRENT AMPERES LEAD TEMPERATURE. ( C) O 25 50 75 100 125 150 FIG.3- MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT Tj=25 C0 8.3ms Single Half Sine Wave JEDEC Method 5 10 50 100 100 200 PEAK FORWARD SURGE CURRENT. (A) NUMBER OF CYCLES AT 60 Hz 202 3 30 808 FIG.2- TYPICAL FORWARD CHARACTERISTICS INSTANTANEOUS FORWARD CURRENT. (A) 1.4 0.01 0.03 0.1 0.3 100 1.5 Tj=25 C Pulse Width=300 s 1% Duty Cycle O FORWARD VOLTAGE. (V) RATINGS AND CHARACTERISTIC CURVES (31DF4 THRU 31DF6) FIG.6- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM NONINDUCTIVE NON INDUCTIVE OSCILLOSCOPE (NOTE 1) PULSE GENERATOR (NOTE 2) DUT (+) 50Vdc (approx) (-) NOTES: 1. Rise Time=7ns max. Input Impedance= 1 megohm 22pf 2. Rise Time=10ns max. Sourse Impedance= 50 ohms (-) (+) NONINDUCTIVE -1.0A -0.25A +0.5A trr 1cm SET TIME BASE FOR 5/ 10ns/ cm FIG.4- TYPICAL REVERSE CHARACTERISTICS 0.1 100 FIG.5- TYPICAL JUNCTION CAPACITANCE JUNCTION CAPACITANCE.(pF) 0.1 0.5 1 5 2 10 20 50 100 200 500 1000 100 120 140 REVERSE VOLTAGE. (V) Tj=25 C0 1000 Tj=25 C0 Tj=125 C0 160 180 INSTANTANEOUS REVERSE CURRENT .( A ) 31DF4-31DF6 3.0 AMP. Super Fast Rectifiers http://www.luguang.cn mail:lge@luguang.cn