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