BA157 THRU BA159 FAST RECOVERY RECTIFIERS Reverse Voltage - 400 to 1000 Volts Forward Current - 1.0 Ampere FEATURES DO-41 The plastic package carries Underwriters Laboratory Flammability Classification 94V-0 Fast switching for high efficiency Low reverse leakage High forward surge current capability High temperature soldering guaranteed: 250 C/10 seconds,0.375”(9.5mm) lead length, 5 lbs. (2.3kg) tension 1.0 (25.4) MIN. 0.107(2.7) 0.080(2.0) DIA. 0.205(5.2) 0.166(4.2) MECHANICAL DATA 1.0 (25.4) MIN. 0.034(0.86) 0.028(0.70) DIA. Dimensions in inches and (millimeters) Case: JEDEC DO-41 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, 0.33 grams MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 C ambient temperature unless otherwise specified. Single phase half-wave 60Hz,resistive or inductive load,for capacitive load current derate by 20%. MDD Catalog Number Maximum repetitive peak reverse voltage Maximum RMS voltage Maximum DC blocking voltage Maximum average forward rectified current 0.375”(9.5mm) lead length at TA=75 C Peak forward surge current 8.3ms single half sine-wave superimposed on rated load (JEDEC Method) Maximum instantaneous forward voltage at 1.0A Maximum DC reverse current TA=25 C at rated DC blocking voltage TA=100 C Maximum reverse recovery time (NOTE 1) Typical junction capacitance (NOTE 2) Typical thermal resistance (NOTE 3) Operating junction and storage temperature range SYMBOLS BA157 BA158 BA159 UNITS VRRM VRMS VDC 400 280 400 600 420 600 1000 700 1000 VOLTS VOLTS VOLTS I(AV) 1.0 Amp IFSM 30.0 Amps VF 1.3 Volts IR 5.0 50.0 µA trr CJ RθJA TJ,TSTG 150 250 15.0 50.0 -65 to +150 Note:1.Reverse recovery condition IF=0.5A,IR=1.0A,Irr=0.25A 2.Measured at 1MHz and applied reverse voltage of 4.0V D.C. 3.Thermal resistance from junction to ambient at 0.375”(9.5mm)lead length,P.C.B. mounted 500 ns pF C/W C FIG. 1- FORWARD CURRENT DERATING CURVE 1.0 0.8 0.6 Single Phase Half Wave 60Hz Resistive or inductive Load 0.4 0.2 0 0 25 50 75 100 125 150 PEAK FORWARD SURGE CURRENT, AMPERES AVERAGE FORWARD RECTIFIED CURRENT, AMPERES RATINGS AND CHARACTERISTIC CURVES BA157 THRU BA159 FIG. 2-MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT 30 25 20 15 8.3ms SINGLE HALF SINE-WAVE (JEDEC Method) 10 175 5.0 1 10 AMBIENT TEMPERATURE, C 20 10 1 TJ=25 C PULSE WIDTH=300 µs 1%DUTY CYCLE 0.01 0.6 0.8 1.0 1.2 1.4 1.5 FIG. 4-TYPICAL REVERSE CHARACTERISTICS INSTANTANEOUS REVERSE CURRENT, MICROAMPERES INSTANTANEOUS FORWARD CURRENT,AMPERES FIG. 3-TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 0.1 1,000 100 10 TJ=100 C 1 0.1 TJ=25 C 0.01 INSTANTANEOUS FORWARD VOLTAGE, VOLTS TJ=25 C 10 TRANSIENT THERMAL IMPEDANCE, C/W FIG. 5-TYPICAL JUNCTION CAPACITANCE JUNCTION CAPACITANCE, pF 0 20 40 60 80 FIG. 6-TYPICAL TRANSIENT THERMAL IMPEDANCE 100 10 1 0.1 0.01 0.1 1 10 1 0.1 1.0 10 REVERSE VOLTAGE,VOLTS 100 PERCENT OF PEAK REVERSE VOLTAGE,% 200 100 100 NUMBER OF CYCLES AT 60 Hz 100 t,PULSE DURATION,sec. The cruve graph is for reference only, can't be the basis for judgment(曲线图仅供参考)! 100