BY252

BY251 ~ BY255 MEDIUM CURRENT PLASTIC RECTIFIER VOLTAGE FEATURES • Plastic package has Underwriters Laboratories Flammability Classification 94V-O • Void-free Plastic in DO-201AD package. • Exceeds environmental standards of MIL-S-19500/228 • Low leakage . .375(9.5) .285(7.2) 1.0(25.4)MIN. 200 to 1300 Volts CURRENT 3.0 Amperes DO-201AD Unit: inch(mm) • High current capability. .052(1.3) .048(1.2) • In compliance with EU RoHS 2002/95/EC directives MECHANICALDATA • Case: Molded plastic, DO-201AD • Polarity: Color Band denotes cathode end • Mounting Position: Any • Weight: 0.0395 ounce, 1.122 grams • Terminals: Axial leads, solderable to MIL-STD-750,Method 2026 MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25°C ambient temperature unless otherwise specified. Resistive or inductive load, 60Hz. PARAMETER Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Current .375"(9.5mm) lead length Peak Forward Surge Current : 8.3ms single half sine-wave superimposed on rated load(JEDEC method) Maximum Forward Voltage at 3.0A Maximum DC Reverse Current at TJ =25O C Rated DC Blocking Voltage TJ =100O C Typical Junction capacitance (Note 1) Typical Thermal Resistance(Note 2) Operating Junction and Storage Temperature Range SYMBOL VR R M VR M S VD C IF (A V ) IF S M VF IR CJ RθJ A TJ ,TS T G BY251 200 140 200 BY252 400 280 400 1.0(25.4)MIN. .210(5.3) .188(4.8) BY253 600 420 600 3.0 100 1.1 5.0 1000 40 15 -55 to +150 BY254 800 560 800 BY255 1300 910 1300 UNITS V V V A A V µA pF O C/W O C NOTES: 1. Measured at 1 MHz and applied reverse voltage of 4.0 volts. 2.Thermal resistance from junction to ambient. 3.Reverse Recovery Test Conditions:I F=0.5A , IR=1.0A ,Irr=0.25A STAD-FEB.27.2009 1 P AGE . 1 BY251 ~ BY255 RATING AND CHARACTERISTIC CURVES 100 AVERAGE FORWARD RECTIFIED CURRENT AMPERES 3.0 2.5 2.0 1.5 1.0 0.5 0 0 50 100 O INSTANTANEOUS FORWARD CURRENT, AMPERES 10 1.0 SINGLE PHASE HALF WAVE 60Hz RESISTIVE OR INDUCTIVE LOAD .375" (9.5mm) LEAD LENGTH 0.1 150 0 .01 0.5 0.7 0.9 1.1 1.3 1.5 1.7 AMBIENT TEMPERATURE, C INSTANTANEOUS FORWARD VOLTAGE, VOLTS FIG.1 FORWARD CURRENT DERATING CURVE 100 FIG.2 TYPICAL FORWARD CHARACTERISTICS JUNCTION CAPACITANCE, pF 120 PEAK FORWARD SURGE CURRENT, AMPERES 100 80 10 60 40 20 0 1 2 6 10 20 40 60 100 ?.1 1 10 100 NO. OF CYCLES AT 60Hz REVERSE VOLTAGE, VOLTS FIG.3 TYPICAL JUNCTION CAPACITANCE INSTANTANEOUS REVERSE CURRENT , m A Fig.4 MAXIMUM NON REPETITIVE PEAK SURGE CURRENT 1000 100 TJ = 125 C o 10 TJ = 100 OC 1.0 TJ = 2 C 5 O 0.1 20 40 60 80 100 120 140 PERCENTAGE OF PEAK REVERSE VOLTAGE,% Fig.5-TYPICAL REVERSE CHARACTERISTIC STAD-FEB.27.2009 1 P AGE . 2