Frontier Electronics Corp. 667 E. COCHRAN STREET, SIMI VALLEY, CA 93065 TEL: (805) 522-9998 FAX: (805) 522-9989 E-mail: [email protected] Web: http://www.frontierusa.com 1A FAST RECOVERY PLASTIC RECTIFIER BA157-LFR THRU BA159-LFR FEATURES z FOR USE IN HIGH FREQUENCY RECTIFIER CIRCUITS z PLASTIC PACKAGE HAS UNDERWRITERS LABORATORY FLAMMABILITY CLASSIFICATION 94 V-0 z FAST SWITCHING FOR HIGH EFFICIENCY z LEAD FREE 1.0(25.4) MIN .034(0.9) .028(0.7) MECHANICAL DATA z CASE: MOLDED PLASTIC CASE, DO41, DIMENSIONS IN INCHES AND (MILLIMETERS) z TERMINAL: AXIAL LEADS, SOLDERABLE PER MIL-STD202, METHOD 208 z POLARITY: COLOR BAND DENOTES CATHODE z MOUNTING POSITION: ANY z WEIGHT: 0.34 GRAM .205(5.2) .166(4.2) .107(2.7) .080(2.0) 1.0(25.4) MIN MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS 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% SYMBOL BA157-LFR BA158-LFR BA159-LFR UNITS MAXIMUM RECURRENT PEAK REVERSE VOLTAGE MAXIMUM RMS VOLTAGE MAXIMUM DC BLOCKING VOLTAGE MAXIMUM AVERAGE FORWARD RECTIFIED CURRENT 0.375”(9.5mm) LEAD LENGTH AT TA=55°C PEAK FORWARD SURGE CURRENT, 8.3ms SINGLE HALF SINE-WAVE SUPERIMPOSED ON RATED LOAD TYPICAL JUNCTION CAPACITANCE (NOTE 1) RATINGS VRRM VRMS VDC 400 280 400 600 420 600 1000 700 1000 V V V CJ 15 PF TYPICAL THERMAL RESISTANCE (NOTE 2) Rθja 50 °C/W STORAGE TEMPERATURE RANGE TSTG - 55 TO + 150 °C OPERATING TEMPERATURE RANGE TOP - 55 TO + 150 °C IO 1.0 A IFSM 35 A ELECTRICAL CHARACTERISTICS (AT TA =25°C UNLESS OTHERWISE NOTED) CHARACTERISTICS SYMBOL BA157-LFR BA158-LFR BA159-LFR UNITS MAXIMUM FORWARD VOLTAGE AT IO DC VF 1.3 V MAXIMUM REVERSE CURRENT AT 25°C IR 5 μA MAXIMUM REVERSE CURRENT AT 100°C IR 50 MAXIMUM REVERSE RECOVERY TIME (NOTE 3) TRR 150 NOTE: 1. MEASURED AT 1 MHZ AND APPLIED REVERSE VOLTAGE 0F 4.0 VOLTS 2. BOTH LEADS ATTACHED TO HEAT SINK 20x20x1t (mm) COPPER PLATE AT LEAD LENGTH 5mm 3. REVERSE RECOVERY TEST CONDITIONS: IF=0.5A, IR=1.0A, IRR=0.25A BA157-LFR THRU BA159-LFR μA 250 Page: 1 nS RATINGS AND CHARACTERISTICS CURVES BA157-LFR THRU BA159-LFR FIG. 1 -TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC Trr 10Ω NO INDUCTIVE 10Ω NO INDUCTIVE +0.5A 0 (-) D.U.T. -0.25A PULSE GENERATOR (NOTE 2) (+) 25 Vdc (Approx) 1Ω NON INDUCTIVE (-) OSCILLOSCOPE (NOTE 1) -1.0A (+) 1cm SET TIME BASE FOR 10/20 ns/cm NOTE: 1. RISE TIME=7ns MAX. INPUT IMPEDANCE=1 MOhms 22PF 2. RISE TIME =10ns MAX. SOURCE IMPEDANCE=50 OHMS Fig. 3-MAXIMUM FORWARD SURGE NUMBER OF CYCLES SINGLE PHASE HALF WAVE 60Hz RESISTIVE OR INDUCTIVE LOAD 1.0 0.8 0.6 0.4 0.2 0 0 20 40 60 80 PEAK FORWARD SURGE CURRENT AMPERES Io-AVERAGE RECTIFIED CURRENT (A) Fig. 2-MAXIMUM CURRENT DERATING CURVE 35 TA=150oC Pulse Width= 8.3ms 20 10 1.0 CYCLE 0 100 120 140 160 180 200 1 10 100 NUMBER OF CYCLES AT 60 HZ TA-AMBIENT TEMPERATURE (OC) FIG. 5-TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 10 10 0 TJ=100oC 10 1.0 0.1 TJ=25oC 01 0 20 40 60 80 100 120 140 INSTANTANEOUS FORWARD CURRENT (A) INSTANTANEOUS REVERSE CURRENT, MICROAMPERES FIG. 4-TYPICAL REVERSE CHARACTERISTICS 1.0 0.1 Tj=25oC PULSE WIDTH =300us 1% DUTY CYCLE .01 0.4 PERCENT OF RATED PEAK REVERSE VOLTAGE, % BA157-LFR THRU BA159-LFR 0.6 0.8 1.0 1.2 1.4 1.6 INSTANTANEOUS FORWARD VOLTAGE, (V) Page: 2