BA157 THRU BA159 1.0 AMP FAST RECOVERY RECTIFIERS VOLTAGE RANGE 400 to 1000 Volts CURRENT FEATURES 1.0 Ampere * Low forward voltage drop * Low leakage current * High reliability * High current capability DO-41 .107(2.7) .080(2.0) DIA. 1.0(25.4) MIN. MECHANICAL DATA * Case: Molded plastic * Epoxy: UL 94V-0 rate flame retardant method 208 guranteed * Lead: Axial leads, solderable per MIL-STD-202, .205(5.2) .166(4.2) method 208 guranteed * Polarity: Color band denotes cathode end * Mounting position: Any * Weight: 0.31grams * Both normal and Pb free product are available: * Normal:80~95%Sn,5~20%Pb * Pb free:99 Sn above can meet Rohs enviroment substance directive request .031(.8) .023(.6) DIA. 1.0(25.4) MIN. Dimensions in inches and (millimeters) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Rating 25 C ambient temperature uniess otherwies specified. Single phase half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%. TYPE NUMBER Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current BA157 400 280 400 BA158 600 420 600 BA159 1000 700 1000 UNITS V V V .375"(9.5mm) Lead Length at Ta=75 C Peak Forward Surge Current, 8.3 ms single half sine-wave 1.0 A superimposed on rated load (JEDEC method) Maximum Instantaneous Forward Voltage at 1.0A Maximum DC Reverse Current Ta=25 C 36 1.3 5.0 A V uA at Rated DC Blocking Voltage Ta=100 C Maximum Reverse Recovery Time (Note 1) Typical Junction Capacitance (Note 2) Operating and Storage Temperature Range Tj, TSTG NOTES: 1. Reverse Recovery Time test condition:IF=1.0A, VR=30V. 2. Measured at 1MHz and applied reverse voltage of 4.0V D.C. 50 150 250 -65 15 +150 uA nS pF C RATING AND CHARACTERISTIC CURVES (BA157 THRU BA159) FIG.1-TYPICAL FORWARD FIG.2-TYPICAL FORWARD CURRENT DERATING CURVE AVERAGE FORWARD CURRENT,(A) CHARACTERISTICS 10 3.0 1.0 1.2 1.0 0.8 Single Phase 0.6 Half Wave 60Hz Resistive Or Inductive Load 0.4 0.375"(9.5mm) Lead Length 0.2 0 20 40 Tj=25 C 60 80 100 120 140 160 180 200 AMBIENT TEMPERATURE ( C) Pulse Width 300us 1% Duty Cycle 0.1 .01 .6 .8 1.0 1.2 1.4 1.6 1.8 2.0 FORWARD VOLTAGE,(V) FIG.3- TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTICS 10K 2W 1 8 115Va 60Hz 2 7 3 30 W/50W NON-INDUCTIVE R1 3W 25W UNIT UNDER TEST 6 C P CLARE HPG1002 4 5 1 AMP SLO-BLO FUSE 30Vdc CONSTANT VOLTAGE SUPPLY C1 1.0mF 300V A R2 1W /10W NONINDUCTIVE 1.0Adc FROM CONSTANT VOLTAGE SUPPLY RIPPLE=3mVrms MAX. +10 C 0 IFM 1.0 i(t) di/dt=50A/mS trr 0 48 36 8.3ms Single Half Tj=25 C Sine Wave 24 JEDEC method 12 0 1 5 50 10 100 NUMBER OF CYCLES AT 60Hz Zout 11/2WMAX. DC To 2KHz FIG.5-TYPICAL JUNCTION CAPACITANCE R2- TEN 1W 10 W1% CARBON CORE IN PARALLEL TA= 25 60 C1 1.0mF 300V MINIMIZE ALL LEAD LENGTHS A-TEKTRONIX 545A. K PLUG IN PRE AMP P6000 PROBE OR EQUIVALENT R1- ADJUSTED FOR 14 BETWEEN POINT 2 OF RELAY AND RECTIFIER INDUCTIVE=3.8mH PEAK FORWAARD SURGE CURRENT,(A) FIG.4-MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT 35 FOR RECTIFIER JUNCTION CAPACITANCE,(pF) INSTANTANEOUS FORWARD CURRENT,(A) 50 30 25 20 15 10 5 IRM(REC) 2.0 0 1cm .01 .05 .1 .5 1 SET TIME BASE FOR 50 / 100ns / cm REVERSE VOLTAGE,(V) 5 10 50 100