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| BA157 THRU BA159 1.0 AMP. Fast Recovery Rectifiers Voltage Range 400 to 1000 Volts Current 1.0 Ampere Features Low forward voltage drop High current capability High reliability High surge current capability DO-41 Mechanical Data Cases: DO-41 Molded plastic Epoxy: UL 94V-0 rate flame retardant Lead: Axial leads, solderable per MILSTD-202, Method 208 guaranteed Polarity: Color band denotes cathode end High temperature soldering guaranteed: 260/10 seconds/.375",(9.5mm) lead lengths at 5 lbs.,(2.3kg) tension Weight: 0.34 gram Dimensions in inches and (millimeters) Maximum Ratings and Electrical Characteristics Rating at 25ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20% Symbol Type Number BA157 Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current .375"(9.5mm) Lead Length @TA = 45 Peak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method ) Maximum Instantaneous Forward Voltage @ 1.0A Maximum DC Reverse Current @ TA=25 at Rated DC Blocking Voltage @ TA=100 Maximum Reverse Recovery Time ( Note 1 ) Typical Junction Capacitance ( Note 2 ) VRRM VRMS VDC I(AV) IFSM VF IR Trr Cj RJA TJ 400 280 400 BA158 600 420 600 1.0 30 1.2 5.0 100 150 BA159 1000 700 1000 Units V V V A A V uA uA nS pF O C/W 250 10 Typical Thermal Resistance ( Note 3 ) 65 Operating Temperature Range -65 to +150 Storage Temperature Range TSTG -65 to +150 Notes: 1. Reverse Recovery Test Conditions: IF=0.5A, IR=1.0A, IRR=0.25A 2. Measured at 1 MHz and Applied Reverse Voltage of 4.0 Volts D.C. 3. Mount on Cu-Pad Size 5mm x 5mm on P.C.B. - 398 - RATINGS AND CHARACTERISTIC CURVES (BA157 THRU BA159) FIG.1- MAXIMUM FORWARD CURRENT DERATING CURVE 1.0 70 FIG.2- MAXIMUM NON-REPETITIVE PEAK FORDWARD SURGE CURRENT PEAK FORWARD SURGE CURRENT. (A) 60 50 40 30 20 10 0 AVERAGE FORWARD CURRENT. (A) 0.75 8.3ms Single Half Sine Wave JEDEC Method 0.5 0.25 Single Phase Half Wave 60Hz Resistive or Inductive Load .375"(9.5mm) Lead Length 0 25 50 75 100 o 0 125 150 175 AMBIENT TEMPERATURE. ( C) 1 2 4 6 10 40 100 NUMBER OF CYCLES AT 60Hz FIG.3- TYPICAL FORWARD CHARACTERISTICS 20 10 90 FIG.4- TYPICAL JUNCTION CAPACITANCE INSTANTANEOUS FORWARD CURRENT. (A) JUNCTION CAPACITANCE.(pF) Tj=25oC Pulse Width=300 s 1% Duty Cycle 50 3 30 20 1 Tj=25 0C 10 0.3 0.1 1 1 2 4 6 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 50W NONINDUCTIVE 10W NONINDUCTIVE +0.5A (-) DUT (+) 50Vdc (approx) (-) PULSE GENERATOR (NOTE 2) 1W NON INDUCTIVE OSCILLOSCOPE (NOTE 1) (+) 0 -0.25A trr NOTES: 1. Rise Time=7ns max. Input Impedance= 1 megohm 22pf 2. Rise Time=10ns max. Sourse Impedance= 50 ohms -1.0A 1cm SET TIME BASE FOR 5/ 10ns/ cm - 399 - |
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