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SF28G Dataheets PDF



Part Number SF28G
Manufacturers LGE
Logo LGE
Description Glass Passivated Super Fast Rectifiers
Datasheet SF28G DatasheetSF28G Datasheet (PDF)

SF21G-SF28G 2.0 AMP. Glass Passivated Super Fast Rectifiers DO-41 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 Polarity: Color band denotes cathode High temperature soldering guaranteed: o 260 C/10 seconds/.375”,(9.5mm) lead lengths at 5 lbs., (2.

  SF28G   SF28G



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SF21G-SF28G 2.0 AMP. Glass Passivated Super Fast Rectifiers DO-41 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 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: 0.40 gram Dimensions in inches and (millimeters) 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 SF SF SF SF SF SF SF SF 21G 22G 23G 24G 25G 26G 27G 28G Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current .375(9.5mm) Lead Length @ TA=55 oC Peak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method ) VRRM VRMS VDC 50 100 150 200 300 400 500 600 35 70 105 140 210 280 350 420 50 100 150 200 300 400 500 600 I(AV) 2.0 IFSM 50 Maximum Instantaneous Forward Voltage @ 2.0A Maximum DC Reverse Current @ TA=25 oC at Rated DC Blocking Voltage @ TA=125 oC VF IR 0.95 1.3 5.0 100 1.7 Maximum Reverse Recovery Time (Note 1) Trr 35 Typical Junction Capacitance (Note 2) Cj 40 20 Typical Thermal Resistance RθJA 65 Operating Temperature Range TJ -65 to +150 Storage Temperature Range TSTG -65 to +150 Notes: 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 10mm x 10mm on PCB. Units V V V A A V uA uA nS pF oC/W oC oC http://www.luguang.cn mail:[email protected] SF21G-SF28G 2.0 AMP. Glass Passivated Super Fast Rectifiers RATINGS AND CHARACTERISTIC CURVES (SF21G THRU SF28G) FIG.1- MAXIMUM AVERAGE FORWARD CURRENT DERATING 3.0 FIG.2- TYPICAL REVERSE CHARACTERISTICS 1000 INSTANTANEOUS REVERSE CURRENT. ( A) AVERAGE FORWARD CURRENT. (A) 2.5 2.0 1.5 Single Phase Half Wave 60Hz 1.0 Resistive or Inductive Load 0.5 0.375" (9.5mm) Lead Length 0 0 25 50 75 100 125 150 175 AMBIENT TEMPERATURE. (OC) FIG.3- MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT 60 50 40 8.3ms Single Half Sine Wave JEDEC Method 30 100 Tj=1250C 10 Tj=750C 1 Tj=250C 0.1 0 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE. (%) PEAK FORWARD SURGE CURRENT. (A) 20 FIG.5- TYPICAL FORWARD CHARACTERISTICS 10 100 JUNCTION CAPACITANCE.(pF) 0 12 5 10 20 NUMBER OF CYCLES AT 60Hz FIG.4- TYPICAL JUNCTION CAPACITANCE 150 50 100 125 100 75 50 25 0 0.1 SF21G~SF24G SF25G~SF28G Tj=250C 0.5 1 2 5 10 20 50 100 200 500 1000 REVERSE VOLTAGE. (V) INSTANTANEOUS FORWARD CURRENT. (A) 10 SF21G~SFS2F4G25G~SF26G 1 SF27G~SF28G 0.1 Tj=25oC Pulse Width=300 s 1% Duty Cycle 0.01 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 FORWARD VOLTAGE. (V) FIG.6- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM 50 NONINDUCTIVE 10 NONINDUCTIVE (+) 50Vdc (approx) (-) DUT OSCILLOSCOPE NON (NOTE 1) INDUCTIVE (-) PULSE GENERATOR (NOTE 2) (+) +0.5A 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 http://www.luguang.cn mail:[email protected] .


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