BA157 thru BA159 Fast Switching Plastic Rectifier Reverse Voltage 400 to 1000V Forward Current 1.0A DO-204AL (DO-41) Features 1.0 (25.4) MIN. * Plastic package has Underwriters Laboratories Flammability Classification 94V-0 * High surge current capability * Void-free plastic package * Fast switching for high efficiency * High temperature soldering guaranteed: 350C/10 seconds, 0.375" (9.5mm) lead length, 5 lbs. (2.3kg) tension 0.107 (2.7) 0.080 (2.0) DIA. 0.205 (5.2) 0.160 (4.1) Mechanical Data 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 1.0 (25.4) MIN. 0.034 (0.86) 0.028 (0.71) DIA. Dimensions in inches and (millimeters) Maximum Ratings & Thermal Characteristics Ratings at 25C ambient temperature unless otherwise specified. SYMBOL BA157 BA158 BA159D BA159 UNIT Maximum repetitive peak reverse voltage VRRM 400 600 800 1000 V Maximum RMS voltage VRMS 280 420 560 700 V Maximum DC blocking voltage VDC 400 600 800 1000 V Maximum average forward rectified current 0.375" (9.5mm) lead length at TA=55C IF(AV) 1.0 A Peak forward surge current 10ms single half sine-wave superimposed on rated load at TA=25C IFSM 20 A Maximum operation junction temperature TJ -65 to +125 C TSTG -65 to +150 C Maximum storage temperature Electrical Characteristics Ratings at 25C ambient temperature unless otherwise specified. SYMBOL BA157 BA158 BA159D BA159 UNIT Maximum instantaneous forward voltage at 1.0A VF 1.3 V Maximum DC reverse current at rated DC blocking voltage TA=25C IR 5.0 A Maximum reverse recovery time at IF=0.5A, IR=1.0A, Irr=0.25A trr Typical junction capacitance at 4.0V, 1MHz CJ 150 250 500 12 ns pF 12/27/99 BA157 thru BA159 Ratings and Characteristic Curves (T A = 25C unless otherwise noted) FIG. 2 - MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT FIG. 1 - FORWARD CURRENT DERATING CURVE 1.0 20 AVERAGE FORWARD CURRENT AMPERES TJ=55C 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 0 175 100 10 1 AMBIENT TEMPERATURE, C NUMBER OF CYCLES AT 60HZ FIG. 3 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 20 FIG. 4 - TYPICAL REVERSE CHARACTERISTICS 100 INSTANTANEOUS REVERSE CURRENT, MICROAMPERES INSTANTANEOUS FORWARD CURRENT AMPERES 10 TJ=25C PULSE WIDTH=300s 1% DUTY CYCLE 1 0.1 10 TJ=100C 1 0.1 TJ=25C 0.01 0 20 40 80 60 100 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=25C 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