BA157 RECTRON THRU SEMICONDUCTOR TECHNICAL SPECIFICATION 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. .205 (5.2) .166 (4.2) .034 (0.9) DIA. .028 (0.7) .107 (2.7) .080 (2.0) DIA. 1.0 (25.4) MIN. MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS o 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%. Dimensions in inches and (millimeters) MAXIMUM RATINGS (At T A = 25 oC unless otherwise noted) SYMBOL BA157 BA158 BA159 UNITS Maximum Recurrent Peak Reverse Voltage VRRM 400 600 1000 Volts Maximum RMS Voltage VRMS 280 420 700 Volts VDC 400 600 1000 Volts RATINGS Maximum DC Blocking Voltage Maximum Average Forward Rectified Current at T A = 75 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 IO 1.0 Amps I FSM 30 Amps CJ 15 pF T J , T STG -65 to + 150 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 = 25 oC Maximum Full Load Reverse Current Full Cycle Average, .375” (9.5mm) lead length at T L = 55 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 BA159 UNITS Volts 5.0 uAmps 100 uAmps IR trr 250 nSec 2002-3 RATING AND CHARACTERISTIC CURVES ( BA157 THRU BA159 ) FIG. 2 - MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT 50 1.0 PEAK FORWARD SURGE CURRENT, (A) AVERAGE FORWARD CURRENT, (A) FIG. 1 - TYPICAL FORWARD CURRENT DERATING CURVE .8 .6 .4 Single Phase Half Wave 60Hz Resistive or Inductive Load .2 8.3ms Single Half Sine-Wave (JEDED Method) 40 30 20 10 0 0 0 25 50 75 100 125 150 AMBIENT TEMPERATURE, ( ) 175 1 3.0 1.0 TJ = 25 Pulse Width=300uS 1% Duty Cycle 0.3 0.1 .03 .01 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 JUNCTION CAPACITANCE, (pF) 50 NONINDUCTIVE (+) 25 Vdc (approx) (-) 20 TJ = 25 .2 .1 TJ = 25 .06 .04 .02 .01 20 40 10 NONINDUCTIVE 60 80 100 120 140 trr +0.5A (-) D.U.T 0 PULSE GENERATOR (NOTE 2) 1 NONINDUCTIVE OSCILLOSCOPE (NOTE 1) -0.25A (+) -1.0A NOTES:1 Rise Time = 7ns max. Input Impedance = 1 megohm. 22pF. 2. Rise Time = 10ns max. Souce Impedance = 50 ohms. 2 1 .1 .6 .4 FIG. 6 - TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC 200 60 40 2 1.0 0 FIG. 5 - TYPICAL JUNCTION CAPACITANCE 100 10 6 4 PERCENT OF RATED PEAK REVERSE VOLTAGE, (%) INSTANTANEOUS FORWARD VOLTAGE, (V) 10 6 4 4 6 8 10 20 40 60 80 100 NUMBER OF CYCLES AT 60Hz FIG. 4 - TYPICAL REVERSE CHARACTERISTICS 20 10 INSTANTANEOUS REVERSE CURRENT, (uA) INSTANTANEOUS FORWARD CURRENT, (A) FIG. 3 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 2 .2 .4 1cm SET TIME BASE FOR 50/100 ns/cm 1.0 2 4 10 20 40 100 REVERSE VOLTAGE, ( V ) RECTRON