BA157 THRU BA159 FAST RECOVERY RECTIFIER Reverse Voltage: 400 to 1000 Volts Forward Current:1.0Ampere DO-41 FEATURES Plastic package has Underwriters Laboratory Flammability Classification 94V-0 Diffused junction JF 1.0(25.4) MIN High current capability 0.107(2.7) 0.080(2.0) DIA. High temperature soldering guaranteed:260°C/10 seconds at terminals, Component in accordance to RoHS 2002/95/EC and WEEE 2002/96/EC 0.205(5.20) 0.161(4.10) MECHANICAL DATA Case: JEDEC DO-41 molded plastic body Terminals: Plated axial leads, solderable per MIL-STD-750,method 2026 1.0(25.4) MIN Polarity: Color band denotes cathode end 0.034(0.85) 0.026(0.65) DIA. Mounting Position: Any Weight: 0.012ounce, 0.33 gram Dimensions in inches and (millimeters) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS (Rating at 25 C ambient temperature unless otherwise specified.Single phase ,half wave ,60HZ,resistive or inductive load. For capacitive load,derate current by 20%.) Symbols BA157 BA158 BA159 Units 400 600 1000 280 420 700 400 600 1000 Volts Volts Volts Maximum DC Blocking Voltage VRRM VRMS VDC Maximum Average Forward Rectified Current load length at TA=50 °C I(AV) 1.0 Amps Peak Forward Surge Current 10ms single half sine-wave superimposed on rated load IFSM 30 Amps VF 1.3 Volts Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum Instantaneous Forward Voltage at 1.0 A Maximum DC Reverse Current TA=25°C at rated DC blocking voltage TA=100°C Maximum reverse recovery time(Note1) Max.thermal resistance(Note 2) Typical junction capacitance(Note 3) Operating junction and storage temperature range 5.0 IR A 100 trr R JA CJ 150 TJ TSTG Note: 1.Test conditions: IF=0.5A,IR=1.0A,Irr=0.25A. 2.Mount on Cu-Pad size 5mmx5mm on P.C.B. 3.Measured at 1MHZ and applied reverse voltage of 4.0 Volts D.C. 1 250 500 ns 65 C/W 15 pF -65 to+150 C BA157 THRU BA159 FAST RECOVERY RECTIFIER Reverse Voltage: 400 to 1000 Volts Forward Current:1.0Ampere FIG.2-MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT 2.0 PEAK FORWARD SURGE CURRENT(AMPERES) AVERAGE FORWARD CURRENT (A) FIG.1-TYPICAL FORWARD CURRENT DERATING CURVE 1.5 1.0 Single Phase Half Wave 60Hz Resistive or Inductive Load .375”(9.5mm) Lead Length 0.5 2.5 8.3ms SINGLE HALF SINE-WAVE (JEDEC Method) 50 40 30 20 10 0 0 0 60 75 50 100 125 150 2 1 175 FIG.3-TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 10 40 100 FIG.4-TYPICAL JUNCTION CAPACTIANCE 20 60 10 JUNCTION CAPACITANCE(pF) INSTANTANEOUS FORWARD CURRENT( AMPERES) 6 4 NUMBER OF CYCLES AT 60Hz AMBIENT TEMPERATURE (°C) 3 1 0.3 0.1 40 20 Tj=25°C 10 TJ=25 C Pulse Width=300µs 1% Duty Cycle 0.03 1 0.01 0.4 0.6 0.8 1.0 1.2 1.4 1.6 2 4 6 INSTANTANEOUS FORWARD VOLTAGE (VOLTS) FIG.5- TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC NONINDUCTIVE trr NONINDUCTIVE +0.5A (＋) D.U.T. PULSE GENERATOR (NOTE2) 50Vdc 0 -0.25A (ADJUSTABLE) (－) 1 NONINDUCTIVE 10 REVERSE VOLTAGE (V) 1.8 OSCILLOSCOPE (NOTE1) -1.0A NOTES:1.Rise Time=7ns max. input lmpedance=1 megohm 22pF 2.Rise Time=10ns max. source lmpedance= 50 ohms 1cm SET TIME BASE FOR 50/100 ns/cm 2 20 40 60 100