BA157

RECTRON SEMICONDUCTOR TECHNICAL SPECIFICATION BA157 THRU BA159 FAST RECOVERY RECTIFIER VOLTAGE RANGE 400 to 1000 Volts CURRENT 1.0 Ampere FEATURES * * * * * * Fast switching Low leakage Low forward voltage drop High current capability High surge capability High reliability DO-41 MECHANICAL DATA * * * * * Case: Molded plastic Epoxy: Device has UL flammability classification 94V-O Lead: MIL-STD-202E method 208C guaranteed Mounting position: Any Weight: 0.33 gram 1.0 (25.4) MIN. .034 (0.9) DIA. .028 (0.7) .205 (5.2) .166 (4.2) .107 (2.7) .080 (2.0) DIA. MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 C ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20%. o 1.0 (25.4) MIN. Dimensions in inches and (millimeters) MAXIMUM RATINGS (At T A = 25 oC unless otherwise noted) RATINGS Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current at T A = 7 5 oC Peak Forward Surge Current 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) Typical Junction Capacitance (Note 2) Operating and Storage Temperature Range SYMBOL VRRM VRMS VDC IO I FSM CJ T J , T STG BA157 400 280 400 BA158 600 420 600 1.0 30 15 -65 to + 150 BA159 1000 700 1000 UNITS Volts Volts Volts Amps Amps pF 0 C ELECTRICAL CHARACTERISTICS (At TA = 25oC unless otherwise noted) CHARACTERISTICS Maximum Instantaneous Forward Voltage at 1.0A DC Maximum DC Reverse Current at Rated DC Blocking Voltage TA = 2 5 oC Maximum Full Load Reverse Current Full Cycle Average, .375” (9.5mm) lead length at T L = 5 5 oC Maximum Reverse Recovery Time (Note 1) NOTES : 1. Test Conditions: IF = 0.5A, IR = -1.0A, IRR = - 0.25A 2. Measured at 1 MHZ and applied reverse voltage of 4.0 volts SYMBOL VF BA157 BA158 1.3 5.0 IR 100 trr 250 uAmps nSec 2002-3 BA159 UNITS Volts uAmps RATING AND CHARACTERISTIC CURVES ( BA157 THRU BA159 ) FIG. 1 - TYPICAL FORWARD CURRENT DERATING CURVE AVERAGE FORWARD CURRENT, (A) FIG. 2 - MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT 50 PEAK FORWARD SURGE CURRENT, (A) 8.3ms Single Half Sine-Wave (JEDED Method) 1.0 .8 .6 .4 .2 0 0 25 50 75 100 125 150 AMBIENT TEMPERATURE, ( ) FIG. 3 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 175 Single Phase Half Wave 60Hz Resistive or Inductive Load 40 30 20 10 0 1 2 4 6 8 10 20 40 60 80 100 NUMBER OF CYCLES AT 60Hz FIG. 4 - TYPICAL REVERSE CHARACTERISTICS INSTANTANEOUS REVERSE CURRENT, (uA) INSTANTANEOUS FORWARD CURRENT, (A) 20 10 3.0 1.0 0.3 0.1 .03 .01 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 TJ = 25 Pulse Width=300uS 1% Duty Cycle 10 6 4 2 1.0 .6 .4 .2 .1 .06 .04 .02 .01 0 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE, (%) TJ = 25 INSTANTANEOUS FORWARD VOLTAGE, (V) FIG. 5 - TYPICAL JUNCTION CAPACITANCE JUNCTION CAPACITANCE, (pF) 200 100 60 40 20 10 6 4 2 1 .1 .2 .4 1.0 2 4 10 20 40 100 REVERSE VOLTAGE, ( V ) TJ = 25 50 NONINDUCTIVE FIG. 6 - TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC 10 NONINDUCTIVE trr +0.5A (-) 0 PULSE GENERATOR (NOTE 2) 1 NONINDUCTIVE OSCILLOSCOPE (NOTE 1) (+) -1.0A 1 NOTES: Rise Time = 7ns max. Input Impedance = 1 megohm. 22pF. 2. Rise Time = 10ns max. Souce Impedance = 50 ohms. 1cm SET TIME BASE FOR 50/100 ns/cm (+) 25 Vdc (approx) (-) D.U.T -0.25A RECTRON