BA157 thru BA159 REVERSE VOLTAGE - 400 to 1000 Volts FORWARD CURRENT - 1.0 Ampere FAST RECOVERY RECTIFIERS DO- 41 FEATURES ● Fast switching for high efficiency ● Low cost ● Diffused junction ● Low reverse leakage current 1.0(25.4) MIN ● Low forward voltage drop ● High current capability .034(0.9) DIA .028(0.7) ● The plastic material carries UL recognition 94V-0 .205(5.2) MAX .107(2.7) DIA .080(2.0) MECHANICAL DATA ●Case: JEDEC DO-41 molded plastic 1.0(25.4) MIN ●Polarity: Color band denotes cathode ●Weight: 0.012 ounces , 0.34 grams ●Mounting position: Any Dimensions in inches and (millimeters) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Rating at 25℃ ambient temperature unless otherwise specified. Single phase, half wave ,60Hz, resistive or inductive load. For capacitive load, derate current by 20% CHARACTERISTICS SYMBOL BA157 BA158 BA159 UNIT Maximum Recurrent Peak Reverse Voltage VRRM 400 600 1000 V Maximum RMS Voltage VRMS 280 420 700 V VDC 400 600 1000 V Maximum DC Blocking Voltage Maximum Average Forward Rectified Current @TA=75 ℃ I(AV) 1.0 A IFSM 30 A VF 1.3 V Peak Forward Surge Current 8.3ms Single Half Sine-Wave Super Imposed on Rated Load(JEDEC Method) Peak Forward Voltage at 1.0A DC Maximum DC Reverse Current @TJ=25℃ at Rated DC Blocking Voltage @TJ=100℃ 5.0 IR Maximum Reverse Recovery Time (Note 1) Trr 150 Typical Junction Capacitance (Note2) CJ 25 Typical Thermal Resistance (Note3) Operating Temperature Range Storage Temperature Range μA 100 250 500 15 nS pF RθJA 25 ℃/W TJ -55 to +125 ℃ TSTG -55 to +150 ℃ NOTES: 1.Measured with IF=0.5A,IR=1A,IRR=0.25A 2.Measured at 1.0 MHz and applied reverse voltage of 4.0V DC 3.Thermal resistance junction to ambient. ~ 62 ~ RATING AND CHARACTERTIC CURVES BA157 thru BA159 FIG. 1 – FORWARD CURRENT DERATING CURVE FIG. 2 – MAXIMUM NON-REPETITIVE SURGE CURRENT 40 SINGLE PHASE HALF WAVE 60Hz RESISTIVE OR INDUCTIVE LOAD 0.8 0.6 0.4 0.2 0 25 50 75 100 125 150 175 PEAK FORWARD SURGE CURRENT AMPERES AVERAGE FORWARD CURRENT AMPERES 1.0 30 20 10 PULSE WIDTH 8.3ms SINGLE HALF-SINE-WAVE (JEDEC METHOD) 0 1 2 AMBIENT TEMPERATURE (℃) 10 20 100 50 NUMBER OF CYCLES AT 60Hz FIG.4-TYPICAL FORWARD CHARACTERISTICS FIG.3 – TYPICAL JUNCTION CAPACITANCE 10 INSTANTANEOUS FORWARD CURRENT AMPERES 100 BA157 CAPACITANCE (pF) 5 10 BA158 - BA159 1.0 T J = 25°C 0.1 PULSE WIDTH 300us T J = 25°C f = 1 MHz 0.01 1 1 4 10 0 100 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 INSTANTANEOUS FORWARD VOLTAGE ,VOLTS REVERSE VOLTAGE ,VOLTS ~ 63 ~ 1.8