SF21

SF21 WEITRON | Alldatasheet

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Technical content

50 TO 600 VOLTS

2.0 AMPERE

Lead(Pb) - F r ee P b Axial Lead Super Fast Rectifiers WEITRON http://www.weitron.com.tw DO-15 Outline Dimensions Axial Device (Th rough-Hole) Features: * Low forward voltage drop. * High current capability. * High reliability. * High surge current capability. * Case: Molded plastic. * Epoxy: UL 94V-0 rate /f_lame 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. Mechanical Data: 1/3 Rev.A 04-Aug-09 Unit:mm CA B D E 2.60.7 0.9 3.6 Dim Min Max Min Max Min Max Min Max Min Max A B C D E

http://www.weitron.com.tw WEITRON 2/3 Rev.A 04-Aug-09 SF21 thru SF28 Rating 25°C Ambient Temperature Unless Otherwise Speci/f_ied. Single Phase Half Wave, 60Hz, Recti/f_ied or Inductive Load. For Capacitive Load, Derate Current By 20%. Maximum Ratings and Electrical Characteristics Characteristics Symbol Unit V V V A A V /uni03BCA VRRM VRMS VDC IFSM VF IR 10050 150 300 400200 5.0 SF21 SF22 SF23 SF24 SF25 SF26 SF27 SF28 500 600 10050 150 300 400200 500 600 7035 105 210 280140 350 420 2.0 0.97 1.25 1.50 Maximum Recurrent Peak Reverse Voltage IF(AV) Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current .375”(9.5mm) Lead Length @TA = 55°C Maximum Instantaneous Forward Voltage At 2.0A Peak Forward Surge Current, 8.3 ms Single Half Sine-Wave Superimposed on Rated Load (JEDEC) Maximum DC Reverse Current @TA = 25°C At Rated DC BlockingVoltage @TA= 100°C Maximum Reverse Recovery Time (Note 2) -65 to +150 nS TSTG TJOperating Temperature Range Storage Temperature Range Trr 60Typical Junction Capacitance (Note 1) pFCJ 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 NOTES: +150

http://www.weitron.com.tw 3/3 Rev.A 04-Aug-09 0.1 1.0 0.01 FIG.4 TYPICAL REVERSE CHARACTERISTICS FIG.1 TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC FIG.2-TYPICAL FORWARD CURRENT DERATING CURVE FIG.6 TYPICAL JUNCTION CAPACITANCE REVERSE VOLTAGE,(V) 0.4 0.8 1.2 1.6 2.0 2.4 175 150 125 100 (+) (+) 25Vdc (approx.) ( ) ( ) NONINDUCTIVE NONINDUCTIVE PULSE GENERATOR (NOTE 2) OSCILLISCOPE (NOTE 1) NON- INDUCTIVE NOTES: 1. Rise Time= 7ns max., Input Impedance= 1 megohm.22pF. 2. Rise Time= 10ns max., Source Impedance= 50 ohms. +0.5A -0.25A -1.0A 1cm SET TIME BASE FOR 50 / 10ns / cm trr 0.01 0.05 0.1 0.5 1 5 10 50 100 D.U.T. 3.0 0.1 1.0 0.01 3.0 0.375"(9.5mm) Lead Length Tj=100°C Tj=25°C 100 NUMBER OF CYCLES AT 60Hz 1 105 50 100 Tj=25°C 8.3ms Single Half Sine Wave JEDEC method 0 20 40 60 80 100 120 140 AMBIENT TEMPERATURE,( C) 0 25 50 75 100 125 150 175 FIG.5 MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT Pulse Width 300us 1% Duty Cycle SF25~SF26 SF21~SF24 Tj=25 C SF27~SF28 RATINGAND CHARACTERISTIC CURVES Single Phase Half Wave 60Hz Resistive Or Inductive Load AVERAGE FORWARD CURRENT (A) PERCENT OF RATED PEAK REVERSE VOLTAGE (%) REVERSE LEAKAGE CURRENT (A) FORWARD VOLTAGE,(V) FIG.3 TYPICAL FORWARD CHARACTERISTICS INSTANTANEOUS FORWARD CURRENT (A) PEAK FORWARD SURGECURRENT (A) JUNCTION CAPACITANCE (pF) SF21 thru SF28