SF21 THRU SF26 Shanghai Lunsure Electronic Technology Co.,Ltd Tel:0086-21-37185008 Fax:0086-21-57152769 Features • • • • 2.0 Amp Super Fast Rectifier 50 to 400 Volts High reliability High current capability Low forward voltage drop High surge capability Maximum Ratings • • • Operating Temperature: -55°C to +125°C Storage Temperature: -55°C to +150°C For capacitive load, derate current by 20% Part Number SF21 SF22 SF23 SF24 SF25 SF26 Maximum Recurrent Peak Reverse Voltage 50V 100V 150V 200V 300V 400V DO-15 Maximum RMS Voltage Maximum DC Blocking Voltage 35V 70V 105V 140V 210V 280V 50V 100V 150V 200V 300V 400V D Electrical Characteristics @ 25°C Unless Otherwise Specified Average Forward IF(AV) 2.0A TC = 55°C Current Peak Forward Surge IFSM 50A 8.3ms, half sine Current Maximum Instantaneous IFM = 2.0A; Forward Voltage VF TC = 25°C SF21-SF24 0.95V SF25-SF26 1.3V Maximum DC 5.0uA TC = 25°C Reverse Current At IR 100uA TC = 100°C Rated DC Blocking Voltage Typical Junction Capacitance Measured at CJ SF21-SF24 60pF 1.0MHz, VR=4.0V SF25-SF26 30pF IF=0.5A, IR=1.0A, Maximum Reverse TRR 35nS Recovery Time IRR=0.25A Pulse Test: Pulse width 300 usec, Duty cycle 1%. A Cathode Mark B D C DIMENSIONS DIM A B C D INCHES MIN .230 .104 .026 1.000 www.cnelectr.com MAX .300 .140 .034 --- MM MIN 5.80 2.60 .70 25.40 MAX 7.60 3.60 .90 --- NOTE SF21 thru SF26 Figure 1 Typical Reverse Characteristics Figure 2 Typical Forward Characteristics 10 1000 SF21-SF24 SF25 -SF26 Tj =100°C uAmps 100 Amps Tj =25°C 10 1 40 20 60 1 0.1 80 100 120 Volts Instantaneous Reverse Current - uAmperes versus Percent of Rated Peak Reverse Voltage - % 0.01 6 8 10 3.0 2.5 2.0 1.5 Amps 1.0 0.5 Single Phase, Half Wave 60Hz Resistive or Inductive Load 0 25 50 75 100 125 14 16 Volts Instantaneous Forward Current - Amperes versus Instantaneous Forward Voltage - Volts Figure 3 Forward Derating Curve 0 12 150 °C Average Forward Rectified Current Per Leg - Amperes versus Case Temperature - °C www.cnelectr.com SF21 thru SF26 Figure 4 Maximum Non-repetitive Forward Surge Current 150 50 JUNCTION CAPACITANCE.(pF) PEAK FORWARD SURGE CURRENT. (A) 60 8.3ms Single Half Sine Wave JEDEC Method 40 30 20 10 0 Figure 5 Typical Junction Capacitance 125 100 Tj=25 0C SF 21 ~S F2 4 75 SF 50 25 ~S F2 6 25 0 1 2 5 10 20 50 .1 100 .5 1 2 5 10 20 50 100 200 500 1000 REVERSE VOLTAGE. (V) NUMBER OF CYCLES AT 60Hz Figure 6 Reverse Recovery Time Characteristic And Test Circuit Diagram 50Ω 10Ω trr +0.5A 0 Pulse Generator Note 2 25Vdc 1Ω Notes: 1. Rise Time = 7ns max. Input impedance = 1 megohm, 22pF 2. Rise Time = 10ns max. Source impedance = 50 ohms 3. Resistors are non-inductive Oscilloscope Note 1 -0.25 -1.0 1cm Set Time Base for 20/100ns/cm www.cnelectr.com