SF28

SF21 thru SF28 Axial Lead Super Fast Rectifiers P b Lead(Pb)-Free REVERSE VOLTAGE 50 TO 600 VOLTS CURRENT 2.0 AMPERE Features: * Low forward voltage drop. * High current capability. * High reliability. * High surge current capability. Mechanical Data: * Case: Molded plastic. * Epoxy: UL 94V-0 rate ame retardant. * Lead: Axial leads, solderable per MIL-STD-202, method 208 guranteed. * Polarity: Color band denotes cathode end. * Mounting position: Any. * Weight: 0.40 grams. DO-15 DO-15 Outline Dimensions Axial Device (Through-Hole) A B C Unit:mm D Dim DO-15 Min 25.4 A Max - Min 5.8 B Max 7.6 Min 25.4 C E Max - Min 0.7 D Max 0.9 Min 2.6 E Max 3.6 WEITRON http://www.weitron.com.tw 1/3 Rev.A 04-Aug-09 SF21 thru SF28 Maximum Ratings and Electrical Characteristics Rating 25°C Ambient Temperature Unless Otherwise Speci ed. Single Phase Half Wave, 60Hz, Recti ed or Inductive Load. For Capacitive Load, Derate Current By 20%. Characteristics Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current .375”(9.5mm) Lead Length @TA = 55°C Peak Forward Surge Current, 8.3 ms Single Half Sine-Wave Superimposed on Rated Load (JEDEC) Symbol SF21 SF22 SF23 SF24 SF25 SF26 SF27 SF28 Unit VRRM VRMS VDC IF(AV) IFSM VF IR CJ Trr TJ TSTG 50 35 50 100 70 100 150 105 150 200 140 200 300 210 300 2.0 50 400 280 400 500 350 500 600 420 600 V V V A A Maximum Instantaneous Forward Voltage At 2.0A Maximum DC Reverse Current @TA = 25°C At Rated DC BlockingVoltage @TA= 100°C Typical Junction Capacitance (Note 1) Maximum Reverse Recovery Time (Note 2) Operating Temperature Range Storage Temperature Range 0.97 1.25 5.0 50 60 35 +150 -65 to +150 1.50 V A pF nS °C °C NOTES: 1. Measured At 1MHz and Applied Reverse Voltage of 4.0 V.D.C 2. Reverse Recovery Time Test Condition: IF=0.5A, IR= 1.0A, IRR= 0.25A WEITRON http://www.weitron.com.tw 2/3 Rev.A 04-Aug-09 SF21 thru SF28 RATINGAND CHARACTERISTIC CURVES +0.5A | | | | | | | | AVERAGE FORWARD CURRENT (A) 50 NONINDUCTIVE 10 NONINDUCTIVE trr 2.4 2.0 1.6 1.2 0.8 0.4 0 0 25 50 75 100 125 150 175 Single Phase Half Wave 60Hz Resistive Or Inductive Load 0.375"(9.5mm) Lead Length (+) 25Vdc (approx.) ( ) D.U.T. 1 NONINDUCTIVE ( ) PULSE GENERATOR (NOTE 2) 0 -0.25A OSCILLISCOPE (NOTE 1) (+) NOTES: 1. Rise Time= 7ns max., Input Impedance= 1 megohm.22pF. 2. Rise Time= 10ns max., Source Impedance= 50 ohms. -1.0A 1cm FIG.1 TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY SET TIME BASE FOR 50 / 10ns / cm AMBIENT TEMPERATURE,( C) TIME CHARACTERISTIC FIG.2-TYPICAL FORWARD CURRENT DERATING CURVE INSTANTANEOUS FORWARD CURRENT (A) 50 50 10 3.0 SF 21~ SF 24 REVERSE LEAKAGE CURRENT (A) 10 3.0 1.0 SF 25 ~S F2 6 1.0 Tj=100°C SF 27 ~S F2 8 0.1 Tj=25 C Pulse Width 300us 1% Duty Cycle Tj=25°C 0.1 0.01 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0.01 0 20 40 60 80 100 120 140 FORWARD VOLTAGE,(V) PERCENT OF RATED PEAK REVERSE VOLTAGE (%) FIG.3 TYPICAL FORWARD CHARACTERISTICS PEAK FORWARD SURGECURRENT (A) 100 80 60 Tj=25°C FIG.4 TYPICAL REVERSE CHARACTERISTICS 175 JUNCTION CAPACITANCE (pF) 150 125 100 75 50 25 0 0.01 0.05 0.1 0.5 1 5 10 50 100 8.3ms Single Half Sine Wave JEDEC method 40 20 0 1 5 10 50 100 NUMBER OF CYCLES AT 60Hz REVERSE VOLTAGE,(V) FIG.5 MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT FIG.6 TYPICAL JUNCTION CAPACITANCE http://www.weitron.com.tw WEITRON 3/3 Rev.A 04-Aug-09