SF31G

SF31G THRU SF38G 3.0 AMPS. Ultra Fast Recovery Rectifiers Voltage Range 50 to 600 Volts Current 3.0 Amperes Features Low forward voltage drop High current capability High reliability High surge current capability DO-201AD Mechanical Data Case: Molded plastic Epoxy: UL 94V-O rate flame retardant Lead: Axial leads, solderable per MIL-STD202, Method 208 guaranteed Polarity: Color band denotes cathode end High temperature soldering guaranteed: o 260 C/10 seconds/.375”,(9.5mm) lead lengths at 5 lbs., (2.3kg) tension Mounting position: Any Weight: 1.1 grams Dimensions in inches and (millimeters) Maximum Ratings and Electrical Characteristics Rating at 25℃ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20% Symbol SF SF SF SF 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℃ Peak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method ) Maximum Instantaneous Forward Voltage @ 3.0A Maximum DC Reverse Current @ TA=25℃ at Rated DC Blocking Voltage @ TA=125℃ Maximum Reverse Recovery Time (Note 1) Typical Junction Capacitance (Note 2) Typical Thermal Resistance (Note 3) SF SF SF SF Units 31G 32G 33G 34G 35G 36G 37G 38G VRRM VRMS VDC I(AV) IFSM VF IR Trr Cj RθJA RθJL 50 100 150 200 300 400 500 600 35 70 105 140 210 280 350 420 50 100 150 200 300 400 500 600 3.0 125 0.95 5.0 100 35 80 60 1.3 1.7 V V V A A V uA uA nS pF ℃/W ℃ ℃ 35 10 Operating Temperature Range -65 to +150 TJ Storage Temperature Range -65 to +150 TSTG Notes: 1. Reverse Recovery Test Conditions: I F=0.5A, IR=1.0A, IRR=0.25A 2. Measured at 1 MHz and Applied Reverse Voltage of 4.0 V D.C. 3. Mount on Cu-Pad Size 16mm x 16mm on PCB. - 244 - RATINGS AND CHARACTERISTIC CURVES (SF31G THRU SF38G) FIG.1- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM trr +0.5A (-) DUT (+) 50Vdc (approx) (-) PULSE GENERATOR (NOTE 2) 1W NON INDUCTIVE OSCILLOSCOPE (NOTE 1) (+) 0 -0.25A AVERAGE FORWARD CURRENT. (A) 50W NONINDUCTIVE 10W NONINDUCTIVE FIG.2- MAXIMUM AVERAGE FORWARD CURRENT DERATING 3.0 2.5 2.0 1.5 1.0 0.5 0 0 25 50 75 100 125 150 175 o Single Phase Half Wave 60Hz Resistive or Inductive Load 0.375" (9.5mm) Lead Length NOTES: 1. Rise Time=7ns max. Input Impedance= 1 megohm 22pf 2. Rise Time=10ns max. Sourse Impedance= 50 ohms -1.0A 1cm SET TIME BASE FOR 5/ 10ns/ cm AMBIENT TEMPERATURE. ( C) FIG.3- TYPICAL REVERSE CHARACTERISTICS 1000 FIG.4- TYPICAL FORWARD CHARACTERISTICS 100 INSTANTANEOUS REVERSE CURRENT. ( A) 100 INSTANTANEOUS FORWARD CURRENT. (A) 10 SF 31 G~ SF 34 G G 35 1 Tj=75 0C 1 0.1 0.1 Tj=25 0C SF 10 ~S F3 Tj=125 0C 8G F3 ~S 7G 3 SF 6G Tj=25oC Pulse Width=300 s 1% Duty Cycle 0.01 0 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE. (%) 0.01 0.4 0.6 0.8 1.0 1.2 1.4 FORWARD VOLTAGE. (V) 1.6 1.8 FIG.5- MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT 175 140 120 FIG.6- TYPICAL JUNCTION CAPACITANCE PEAK FORWARD SURGE CURRENT. (A) JUNCTION CAPACITANCE.(pF) 150 8.3ms Single Half Sine Wave JEDEC Method Tj=25 0C 100 80 125 100 SF 60 40 20 0 31 75 SF G~ 35 SF G G~ 34 G SF 38 50 25 1 2 5 10 20 50 100 NUMBER OF CYCLES AT 60Hz 0.1 0.5 1 2 5 10 20 50 100 200 500 1000 REVERSE VOLTAGE. (V) - 245 -