BA157 THRU BA159D FAST SWITCHING PLASTIC RECTIFIER Reverse Voltage - 400 to 800 Volts Forward Current - 1.0 Ampere DO-204AL 1.0 (25.4) MIN. 0.107 (2.7) 0.080 (2.0) DIA. 0.205 (5.2) 0.160 (4.1) FEATURES ♦ Plastic package has Underwriters Laboratory Flammability Classification 94V-0 ♦ High surge current capabability ♦ Void-free plastic package ♦ Fast switching for high efficiency ♦ High temperature soldering guaranteed: 350°C/10 seconds, 0.375" (9.5mm) lead length, 5 lbs. (2.3kg) tension MECHANICAL DATA 1.0 (25.4) MIN. 0.034 (0.86) 0.028 (0.71) DIA. Case: JEDEC DO-204AL molded plastic body Terminals: Plated axial leads, solderable per MIL-STD-750, Method 2026 Polarity: Color band denotes cathode end Mounting Position: Any Weight: 0.012 ounce,0.3 gram Dimensions in inches and (millimeters) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25°C ambient temperature unless otherwise specified. SYMBOLS BA157 BA158 BA159D UNITS Maximum repetitive peak reverse voltage VRRM 400 600 800 Volts Maximum RMS voltage VRMS 280 420 560 Volts Maximum DC blocking voltage VDC 400 600 800 Volts Maximum average forward rectified current 0.375" (9.5mm) lead length at T A=55°C I(AV) 1.0 Amp Peak forward surge current 10ms single half sine-wave superimposed on rated load at TA=25°C IFSM 20.0 Amps Maximum instantaneous forward voltage at 1.0A VF 1.3 Volts Maximum DC reverse current at rated DC blocking voltage TA=25°C IR 5.0 µA Maximum reverse recovery time (NOTES 1) trr 300 ns Typical junction capacitance (NOTE 2) CJ 12.0 pF Maximum operation junction temperature TJ -65 to +125 °C TSTG -65 to +150 °C Maximum storage temperature NOTES: (1) Reverse recovery test conditions: IF=10mA, IR=10mA, Irr=1mA for 400 to 800 Volt devices (2) Measured at 1.0MHZ and applied reverse voltage of 4.0 Volts 4/98 RATINGS AND CHARACTERISTIC CURVES BA157 THRU BA159D FIG. 2 - MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT FIG. 1 - FORWARD CURRENT DERATING CURVE 1.0 20 AVERAGE FORWARD CURRENT AMPERES TJ=55°C 8.3ms SINGLE HALF SINE-WAVE (JEDEC Method) PEAK FORWARD CURRENT AMPERES 0.8 0.6 0.4 0.2 0 15 10 5 RESISTIVE OR INDUCTIVE LOAD 0.375" (9.5mm) LEAD LENGTH 0 25 50 75 100 125 150 0 175 1 10 AMBIENT TEMPERATURE, °C 100 NUMBER OF CYCLES AT 60HZ FIG. 3 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 20 FIG. 4 - TYPICAL REVERSE CHARACTERISTICS INSTANTANEOUS REVERSE CURRENT, MICROAMPERES INSTANTANEOUS FORWARD CURRENT AMPERES 10 TJ=25°C PULSE WIDTH=300µs 1% DUTY CYCLE 1 0.1 100 10 TJ=100°C 1 0.1 TJ=25°C 0.01 0 20 40 60 80 100 PERCENT OF RATED PEAK REVERSE VOLTAGE, % 0.01 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 INSTANTANEOUS FORWARD VOLTAGE, VOLTS FIG. 6 - TYPICAL TRANSIENT THERMAL IMPEDANCE 100 TRANSIENT THERMAL IMPEDANCE, °C/W FIG. 5 - TYPICAL JUNCTION CAPACITANCE JUNCTION CAPACITANCE, pF 100 TJ=25°C f=1.0 MHz Vsig=50mVp-p 10 1 0.1 1 10 REVERSE VOLTAGE, VOLTS 100 10 1 0.1 0.01 0.1 1 t, PULSE DURATION, sec. 10 100