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| SF31G - SF38G 3.0 AMPS. Glass Passivated Super Fast Rectifiers DO-201AD Features High efficiency, low VF High current capability High reliability High surge current capability Low power loss. For use in low voltage, high frequency inventor, free wheeling, and polarity protection application Mechanical Data Case: Molded plastic Epoxy: UL 94V-0 rate flame retardant Lead: Pure tin plated, lead free., solderable per MIL-STD-202, Method 208 guaranteed Polarity: Color band denotes cathode 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 o Dimensions in inches and (millimeters) Maximum Ratings and Electrical Characteristics 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% 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 o @T A = 55 C Peak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method ) Maximum Instantaneous Forward Voltage @ 3.0A o Maximum DC Reverse Current @ T A =25 C o at Rated DC Blocking Voltage @ T A =125 C Maximum Reverse Recovery Time (Note 1) Typical Junction Capacitance (Note 2) Typical Thermal Resistance Operating Temperature Range T J Storage Temperature Range T STG Notes: SF Units SF SF SF 31G 32G 33G 34G 35G 36G 37G 38G V RRM V RMS V DC I(AV) IFSM VF IR Trr Cj R JA R JL TJ T STG 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 35 10 -65 to +150 -65 to +150 60 o V V V A A 1.3 1.7 V uA uA nS pF C/W o o C C 1. Reverse Recovery Test Conditions: IF =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. Version: A06 RATINGS AND CHARACTERISTIC CURVES (SF31G THRU SF38G) FIG.1- MAXIMUM AVERAGE FORWARD CURRENT DERATING 3.0 FIG.3- TYPICAL REVERSE CHARACTERISTICS 1000 AVERAGE FORWARD CURRENT. (A) 2.5 100 Tj=125 0C 10 1.5 1.0 0.5 Single Phase Half Wave 60Hz Resistive or Inductive Load 0.375" (9.5mm) Lead Length 0 25 50 75 100 125 O INSTANTANEOUS REVERSE CURRENT. ( A) 2.0 Tj=75 0C 1 0 150 175 AMBIENT TEMPERATURE. ( C) 175 FIG.5- MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT 0.1 Tj=25 0C PEAK FORWARD SURGE CURRENT. (A) 150 125 8.3ms Single Half Sine Wave JEDEC Method 0.01 0 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE. (%) 100 75 50 25 FIG.4- TYPICAL FORWARD CHARACTERISTICS 100 1 2 5 10 20 50 100 INSTANTANEOUS FORWARD CURRENT. (A) 10 G 35 120 JUNCTION CAPACITANCE.(pF) Tj=25 0C 100 80 1 SF 60 40 20 0 31 SF G~ 35 SF G G~ 34 0.1 G SF 38 SF ~S 140 F3 8G F3 ~S G 37 SF 6G Tj=25oC Pulse Width=300 s 1% Duty Cycle FIG.5- TYPICAL JUNCTION CAPACITANCE 0.1 0.5 1 2 5 10 20 50 100 200 500 1000 0.01 0.4 0.6 REVERSE VOLTAGE. (V) 0.8 1.0 1.2 1.4 FORWARD VOLTAGE. (V) SF 31 G~ SF 34 G NUMBER OF CYCLES AT 60Hz 1.6 1.8 FIG.6- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM 50W NONINDUCTIVE 10W NONINDUCTIVE +0.5A (-) DUT (+) 50Vdc (approx) (-) PULSE GENERATOR (NOTE 2) 1W NON INDUCTIVE OSCILLOSCOPE (NOTE 1) (+) 0 -0.25A trr 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 Version: A06 |
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