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 .107(2.7) .080(2.0) DIA. 1.0(25.4) MIN. MECHANICAL DATA * Case: Molded plastic * Epoxy: UL 94V-0 rate flame retardant * Lead: Axial leads, solderable per MIL-STD-202, method 208 guranteed * Polarity: Color band denotes cathode end * Mounting position: Any .205(5.2) .166(4.2) .034(.9) .028(.7) DIA. * Weight: 0.34 grams 1.0(25.4) MIN. Dimensions in inches and (millimeters) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Rating 25 C ambient temperature uniess otherwies specified. Single phase half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%. TYPE NUMBER BA157 400 280 400 Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current BA158 600 420 600 BA159 1000 700 1000 UNITS V V V .375"(9.5mm) Lead Length at Ta=75 C Peak Forward Surge Current, 8.3 ms single half sine-wave 1.0 A superimposed on rated load (JEDEC method) Maximum Instantaneous Forward Voltage at 1.0A Maximum DC Reverse Current Ta=25 C 30 1.3 5.0 A V µA at Rated DC Blocking Voltage Ta=100 C Maximum Reverse Recovery Time (Note 1) Typical Junction Capacitance (Note 2) Operating and Storage Temperature Range TJ, TSTG 100 150 15 -65 +150 NOTES: 1. Reverse Recovery Time test condition: IF=0.5A, IR=1.0A, IRR=0.25A 2. Measured at 1MHz and applied reverse voltage of 4.0V D.C. 88 250 µA nS pF C RATING AND CHARACTERISTIC CURVES (BA157 THRU BA159) FIG.1-TYPICAL FORWARD FIG.2-TYPICAL FORWARD CURRENT DERATING CURVE AVERAGE FORWARD CURRENT,(A) CHARACTERISTICS 10 3.0 1.0 1.2 1.0 0.8 Single Phase 0.6 Half Wave 60Hz Resistive Or Inductive Load 0.4 0.375"(9.5mm) Lead Length 0.2 0 0 20 40 60 Tj=25 C 80 100 120 140 160 180 200 AMBIENT TEMPERATURE,( C) Pulse Width 300us 1% Duty Cycle 0.1 .6 .8 1.0 1.2 1.4 1.6 1.8 2.0 FORWARD VOLTAGE,(V) FIG.3- TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTICS 50Ω NONINDUCTIVE 10Ω NONINDUCTIVE ( ) (+) D.U.T. 25Vdc (approx.) PULSE GENERATOR (NOTE 2) ( ) 1Ω NONINDUCTIVE OSCILLISCOPE (NOTE 1) PEAK FORWARD SURGE CURRENT,(A) .01 FIG.4-MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT 30 24 18 Sine Wave 12 JEDEC method 6 0 1 | | | | | | | | 0 -0.25A 1cm 100 35 30 25 20 15 10 5 0 -1.0A 50 10 FIG.5-TYPICAL JUNCTION CAPACITANCE 2. Rise Time= 10ns max., Source Impedance= 50 ohms. +0.5A 5 NUMBER OF CYCLES AT 60Hz NOTES: 1. Rise Time= 7ns max., Input Impedance= 1 megohm.22pF. trr 8.3ms Single Half Tj=25 C (+) JUNCTION CAPACITANCE,(pF) INSTANTANEOUS FORWARD CURRENT,(A) 50 .01 SET TIME BASE FOR .05 .1 .5 1 REVERSE VOLTAGE,(V) 50 / 10ns / cm 89 5 10 50 100