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 SFR SFR SFR SFR SFR SFR SFR 151 152 153 154 155 156 157 Units Maximum recurrent peak reverse voltage VRRM 50 100 200 400 600 800 1000 V Maximum RMS voltage VRMS 35 70 140 280 420 560 700 V Maximum DC blocking voltage VDC 50 100 200 400 600 800 1000 V Maximum average forward rectified current O 0.375”(9.5mm) lead length at TA = 55 C I(AV) 1.5 A Peak forward surge current , 8.3mS single half sine-wave superimposed on rated load (JEDEC method) IFSM 50 A VF 1.2 V IR IR 5 100 µA Maximum instantaneous forward voltage @ 1.5A Maximum DC reverse current at rated DC blocking voltage O @ TA = 25 C O @ TA = 75 C 120 µA Maximum reverse recovery time (Note 1) Trr 200 350 nS Typical junction capacitance (Note 2) CJ 30 Operating temperature range TJ -65 to +150 O C Storage temperature range TS -65 to +150 O C pF 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. 2-MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT PEAK FORWARD SURGE CURRENT,(A) AVERAGE FORWARD CURRENT, AMPERES Fig. 1-MAXIMUM FORWARD CURRENT DERATING CURVE 2.0 1.5 1.0 SINGLE PHASE HALF WAVE 60Hz RESISTIVE OR INDUCTIVE LOAD .375" 9.5 mm LEAD LENGTH 0.5 0 0 25 50 75 100 125 150 60 50 40 30 20 10 0 2 175 10 6 40 100 NUMBER OF CYCLES AT 60Hz o AMBIENT TEMPERATURE, C Fig. 3-TYPICAL FORWARD CHARACTERISTICS Fig. 4-TYPICAL JUNCTION CAPACITANCE 20 JUNCTION CAPACITANCE.(pF) 100 10 INSTANTANEOUS FORWARD CURRENT, (A) 4 o Tj =25 C Pulse Width=300 s 1% Duty Cycle 3.0 1.0 0.3 60 40 20 o Tj =25 C 10 0.1 1 2 4 6 20 10 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 10 NONINDUCTIVE 50 NONINDUCTIVE +0.5A DUT (-) (+) 50Vdc (appox) (-) PULSE GERATOR (NOTE 2) 1 NON INDUCTIVE trr OSCILLOSCOPE (NOTE 1) 0 -0.25A (+) NOTES:1. Rise Time=7ns max. Input Impedance= 1 megohm 22 pf 2. Rise Time=10ns max. Sourse Impedance= 50 ohms -1.0A 1cm 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