DATA SHEET BY251 thru BY255 MEDIUM CURRENT PLASTIC RECTIFIER CURRENT VOLTAGE 200 to 1300 Volts 3.0 Amperes DO-201AD Unit: inch(mm) FEATURES • High current capability. .052(1.3) .048(1.2) 1.0(25.4)MIN. • Plastic package has Underwriters Laboratories Flammability Classification 94V-O • Void-free Plastic in DO-201AD package. • Exceeds environmental standards of MIL-S-19500/228 .375(9.5) • Hing current operation of 3Amperes at TA=95°C with no thermal runaway. .285(7.2) • Low leakage . MECHANICALDATA .210(5.3) .188(4.8) 1.0(25.4)MIN. Case: Molded plastic, DO-201AD Terminals: Axial leads, solderable to MIL-STD-202,Method 208 Polarity: Color Band denotes cathode end Mounting Position: Any Weight: 0.04 ounce, 1.1 grams MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25°C ambient temperature unless otherwise specified. Resistive or inductive load, 60Hz. PAR AMETER SYMB OL B Y251 B Y252 B Y253 B Y254 B Y255 U N ITS Maxi mum Recurrent Peak Reverse Voltage VRRM 200 400 600 800 1300 V Maxi mum RMS Voltage VRMS 140 280 420 560 910 V Maxi mum D C Blocki ng Voltage VDC 200 400 600 800 1300 V Maxi mum Average Forward C urrent .375"(9.5mm) lead length at TA=95 O C IAV 3.0 A Peak Forward Surge C urrent : 8.3ms si ngle half si ne-wave superi mposed on rated load(JED EC method) IFSM 100 A Maxi mum Forward Voltage TJ=25OC at 3.0A VF Maxi mum D C Reverse C urrent at TA=25OC Rated D C Blocki ng Voltage TA=100O C IR 5.0 1000 uA Typi cal Juncti on capaci tance (Note 1) CJ 40 pF RθJA 15 TJ,TSTG -55 to +150 Typi cal Thermal Resi stance(Note 2) Operati ng Juncti on and Storage Temperature Range 1.1 V 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. STAD-JAN.14.2004 PAGE . 1 8.0 AVERAGE FORWARD RECTIFIED CURRENT, AMPERES 7.0 6.0 5.0 4.0 3.0 2.0 TA=AMBIENT TEMPERATURE 0.375"(9.5mm) LEAD LENGTHTS P.C. BOARD MOUNTING RESISTIVE OR INDUCTIVE LOAD 1.0 0 0 25 50 75 100 125 150 175 200 INSTANTANEOUS REVERSE CURRENT, mA RATING AND CHARACTERISTIC CURVES 10 O TA=100 C 1.0 0.1 O TA=25 C 0.01 0 20 40 60 80 100 120 140 O AMBIENT TEMPERATURE, C PERCENT OF RATED PEAK REVERSE VOLTAGE FORWARD DERATING CURVE TYPICAL REVERSE CHARACTERISTICS 100 10 10 1 10 .1 100 REVERSE VOLTAGE, VOLTS TYPICAL JUNCTION CAPACITANCE FORWARD SURGE CURRENT, Apk AMPERES 120 MAXIMUM FORWARD CURRENT-1FM(Apk) JUNCTION CAPACITANCE, pF 100 1.0 0.1 0 .01 0.6 0.8 1.0 1.2 1.4 1.6 1.8 MAXIMUM FORWARD VOLTAGE,VOLTS 8.3ms Single Half Since-Wave JEDEC Method TYPICAL FORWARD CHARACTERISTICS 100 80 60 40 20 0 1 10 100 NUMBER OF CYCLES AT 60HZ MAXIMUM OVEROLAD SURGE CURRENT STAD-JAN.14.2004 PAGE . 2