BA157 THRU BA159 FAST SWITCHING PLASTIC RECTIFIER VOLTAGE - 400 to 1000 Volts CURRENT - 1.0 Ampere FEATURES l High surge current capability l Plastic package has Underwriters Laboratory Flammability Classification 94V-O Utilizing Flame Retardant Epoxy Molding Compound l Void-free Plastic in a DO-41 package l 1.0 ampere operation at TA=55 ¢J with no thermal runaway l l DO-41 Fast switching for high efficiency Exceeds environmental standards of MIL-S-19500/228 MECHANICAL DATA Case: Molded plastic, DO-41 Terminals: Axial leads, solderable per MIL-STD-202, Method 208 Polarity: Band denotes cathode Mounting Position: Any Weight: 0.012 ounce, 0.3 gram MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 ¢J ambient temperature unless otherwise specified. Single phase, half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%. Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current .375"(9.5mm) lead length at TA=55 ¢J Peak Forward Surge Current 8.3ms single half sine wave superimposed on rated load(JECEC method) Maximum Forward Voltage at 1.0A Maximum Reverse Current TJ=25 ¢J at Rated DC Blocking Voltage TJ=100 ¢J Typical Junction capacitance (Note 1) Maximum Reverse Recovery Time(Note 2) Operating and Storage Temperature Range BA157 400 280 400 NOTES: 1. Measured at 1 MHz and applied reverse voltage of 4.0 VDC 2. Reverse Recovery Test Conditions: IF=.5A, IR=1A, Irr=.25A BA158 600 420 600 1.0 BA159 1000 700 1000 UNITS V V V A 30 A 1.3 5.0 500 V £g A 12 150 PF 250 -55 to +150 ns ¢J RATING AND CHARACTERISTIC CURVES BA157 THRU BA159 trr +0.5A 0 -0.25 -1.0 NOTE:1.Rise Time = 7ns max. Input Impedance = 1 megohm. 22pF 2.Rise Time = 10ns max. 1cm SET TIME BASE FOR 50 ns/cm Source Impedance = 50 Ohms Fig. 1-REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM 1 AVERAGE FORWARD RECTIFIED CURRENT AMPERES INSTANTANEOUS FORWARD CURRENT, AMPERES 10 TJ = 25¢J 0.1 PULSE WIDTH = 300£gs 1% DUTY CYCLE 0.01 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.6 1.4 MAXIMUM AVERAGE CURRENT RATING SINGLE PHASE, HALF WAVE 60Hz RESISTIVE OR INDUCTIVE LOAD .375"(9.5mm) LEAD LENGTHS 1.2 1.0 .8 .6 .4 .2 0 0 20 40 60 80 100 120 140 160 AMBIENT TEMPERATURE, ¢J INSTANTANEOUS FORWARD VOLTAGE, VOLTS Fig. 2-TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS Fig. 3-FORWARD CURRENT DERATING CURVE 30 FORWARD SURGE CURRENT, AMPERES pk (HALF-SINE WAVE) CAPACITANCE, pF 100 TJ = 25¢J 10 1 1 4 10 24 18 12 6 1 2 4 6 8 10 20 40 60 80 100 100 REVERSE VOLTAGE, Vdc Fig. 4-TYPICAL JUNCTION CAPACITANCE NUMBER OF CYCLES AT 60Hz Fig. 5-PEAK FORWARD SURGE CURRENT 180