BY255

3.0 AMP SILICON RECTIFIERS

VOLTAGE RANGE200 to 1300 VoltsCURRENTFEATURES* Low forward voltage drop* High current capability* High reliability* High surge current capability3.0 AmperesDO-27.220(5.6).197(5.0) DIA.1.0(25.4) MIN.MECHANICAL DATA* Case: Molded plastic* Epoxy: UL 94V-0 rate flame retardant* Lead: Axial leads, solderable per MIL-STD-202, method 208 guranteed* Polarity: Color band denotes cathode end* Mounting position: Any*Weight: 1.10 grams.375(9.5).285(7.2).052(1.3).048(1.2) DIA.1.0(25.4) MIN.Dimensions in inches and (millimeters)MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICSRating 25 C ambient temperature uniess otherwies specified.Single phase half wave, 60Hz, resistive or inductive load.For capacitive load, derate current by 20%.TYPE NUMBERMaximum Recurrent Peak Reverse VoltageMaximum RMS VoltageMaximum DC Blocking VoltageMaximum Average Forward Rectified Current.375\"(9.5mm) Lead Length at Ta=75 CPeak Forward Surge Current, 8.3 ms single half sine-wavesuperimposed on rated load (JEDEC method)Maximum Instantaneous Forward Voltage at 3.0AMaximum DC Reverse Current Ta=25 Cat Rated DC Blocking Voltage Ta=100 CTypical Junction Capacitance (Note 1)Typical Thermal Resistance RθJA (Note 2)Operating and Storage Temperature Range TJ, TSTGNOTES: BY251 BY252 BY253 BY254 BY255 UNITS 200 400 600 800 1300 V 140 280 420 560 910 V 200 400 600 800 1300 V 3.0200 1.0 5.0 50 4030-65 +150 AAVµAµApFC/W C1. Measured at 1MHz and applied reverse voltage of 4.0V D.C.2. Thermal Resistance from Junction to Ambient .375\" (9.5mm) lead length. 124RATING AND CHARACTERISTIC CURVES (BY251 THRU BY255)FIG.1-TYPICAL FORWARDCHARACTERISTICSAVERAGE FORWARD CURRENT,(A)3.02.52.01.51.00.5 00 20 40 60 80 100 120 140 160 180 200Single PhaseHalf Wave 60HzResistive Or Inductive Load0.375\"(9.5mm) Lead LengthFIG.2-TYPICAL FORWARD CURRENT DERATING CURVE50 INSTANTANEOUS FORWARD CURRENT,(A)10 3.01.0Tj=25 CPulse Width 300us 1% Duty CycleAMBIENT TEMPERATURE,( C)0.1FIG.4-MAXIMUM NON-REPETITIVE FORWARDSURGE CURRENTPEAK FORWARD SURGE CURRENT,(A) 250 .01.6 .7 .8 .9 1.0 1.1 1.2 1.3FORWARD VOLTAGE,(V)200150Tj=25 C8.3ms Single HalfSine WaveJEDEC method100 50FIG.3 - TYPICAL REVERSECHARACTERISTICS100 01 5 10 50100NUMBER OF CYCLES AT 60HzREVERSE LEAKAGE CURRENT, (µA) 10Tj=100 C FIG.5-TYPICAL JUNCTION CAPACITANCE140 120100 80 60 40 20 01.0.1Tj=25 C .01 0 20 40 60 80 100 120 140PERCENT OF RATED PEAK REVERSE VOLTAGE,(%)JUNCTION CAPACITANCE,(pF).01 .05 .1 .5 1 5 10 50 100REVERSE VOLTAGE,(V) 125