SFR157

SFR151 THRU SFR157 SOFT FAST RECOVERY RECTIFIERS Reverse Voltage – 50 to 1000 Volts Forward Current – 1.5 Amperes Features • Low forward voltage drop. • High current capability. • High reliability. • High surge current capability. • Fast switching for high efficiency. Mechanical Data • Cases: Molded plastic • Lead: Axial leads, solderable per MIL-STD-202, Method 208 guaranteed. • Polarity: Color band denotes cathode end • High temperature soldering guaranteed: 250oC/10 seconds/ 0.375”, (9.5mm) lead lengths at 5 Ibs., (2.3kg) tension Absolute Maximum Ratings and Characteristics Rating at 25oC ambient temperature unless otherwise specified. Single-phase, half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%. Symbols Maximum recurrent peak reverse voltage Maximum RMS voltage Maximum DC blocking voltage Maximum average forward rectified current O 0.375”(9.5mm) lead length at TA = 55 C Peak forward surge current , 8.3mS single half sine-wave superimposed on rated load (JEDEC method) Maximum instantaneous forward voltage @ 1.5A Maximum DC reverse current at rated DC blocking voltage @ TA = 25 C O @ TA = 75 C O SFR 151 50 35 50 SFR 152 100 70 100 SFR 153 200 140 200 SFR 154 400 280 400 1.5 SFR 155 600 420 600 SFR 156 800 560 800 SFR 157 1000 700 1000 Units V V V A VRRM VRMS VDC I(AV) IFSM VF IR IR Trr CJ TJ TS 120 50 1.2 5 100 200 30 -65 to +150 -65 to +150 350 A V µA µA nS pF O O Maximum reverse recovery time (Note 1) Typical junction capacitance (Note 2) Operating temperature range Storage temperature range C C Note: (1) Reverse recovery test conditions: IF = 0.5A, IR = 1A , IRR = 0.25A. (2) Measured at 1 MHz and applied reverse voltage of 4 Volts D.C. SEMTECH ELECTRONICS LTD. ® (Subsidiary of Semtech International Holdings Limited, acompany listed on the Hong Kong Stock Exchange, Stock Code: 724) Dated : 20/06/2003 SFR151 THRU SFR157 RATINGS AND CHARACTERISTIC CURVES (SFR151 THRU SFR157) Fig. 1-MAXIMUM FORWARD CURRENT DERATING CURVE AVERAGE FORWARD CURRENT, AMPERES PEAK FORWARD SURGE CURRENT,(A) Fig. 2-MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT 60 50 40 30 20 10 0 2 4 6 10 40 100 2.0 1.5 1.0 SINGLE PHASE HALF WAVE 60Hz RESISTIVE OR INDUCTIVE LOAD .375" 9.5 mm LEAD LENGTH 0 25 50 75 100 125 150 175 0.5 0 o AMBIENT TEMPERATURE, C NUMBER OF CYCLES AT 60Hz Fig. 3-TYPICAL FORWARD CHARACTERISTICS Fig. 4-TYPICAL JUNCTION CAPACITANCE 20 o Tj =25 C Pulse Width=300 s 1% Duty Cycle JUNCTION CAPACITANCE.(pF) 100 60 40 10 INSTANTANEOUS FORWARD CURRENT, (A) 3.0 1.0 20 o Tj =25 C 0.3 0.1 10 1 2 46 10 20 40 60 100 REVERSE VOLTAGE. (V) 0.03 0.01 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 FORWARD VOLTAGE, (V) Fig. 5-REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM 50 NONINDUCTIVE 10 NONINDUCTIVE +0.5A DUT (+) 50Vdc (appox) (-) 1 NON INDUCTIVE OSCILLOSCOPE (NOTE 1) (-) PULSE GERATOR (NOTE 2) (+) -1.0A 0 -0.25A trr 1cm NOTES:1. Rise Time=7ns max. Input Impedance= 1 megohm 22 pf 2. Rise Time=10ns max. Sourse Impedance= 50 ohms SET TIME BASE FOR 5/10ns/cm SEMTECH ELECTRONICS LTD. ® (Subsidiary of Semtech International Holdings Limited, acompany listed on the Hong Kong Stock Exchange, Stock Code: 724) Dated : 20/06/2003