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WEJ ELECTRONIC CO.,LTD
FEATURES
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Low cost construction Low forward voltage drop Low reverse leakage High forward surge current capability High temperature soldering guaranteed: 260 C/10 seconds/0.375 (9.5mm)lead length at 5 lbs (2,3kg) tension Transfer molded plastic UL94V-0 rate flame retardant Color band denotes cathode end Plated axial lead ,solderable per MIL-STD-202E method 208C Any 0.042 ounce,1.19 grams Ratings at ambient temperature unless otherwise specified. Single phase,half wave,60Hz,resistive or inductive load. For capacitive load derate current by 20%. o Case: Epoxy: Polarity: Lead: Mounting position: Weight: 25 C o .052(1.3) .048(1.2) DIA. 1.0(25.4) MIN .375(9.5) .335(8.5) .220(5.6) .197(5.0) DIA DO-27 1.0(25.4) MIN Dimensions in inches and (millimeters) V OL T A GE RANGE CURRENT 200 to 1300 V olts
3.0 Amper es
Maximum Average Forward Rectified Current 0.375 (9.5mm) lead length at T =75 C” A o Peak Forward Surge Current 8.3ms single half sine-wave superimposed on rated load (JEDEC Method) Maximum Instantaneous Forward Voltage at 3.0A Maximum DC Reverse Current at rated DC blocking voltage T =25 C T =150 C A o A o Maximum Full Load Reverse Current,full cycle average 0.375 (9.5mm) lead length at T =105 C” L o Typical Junction Capacitance(NOTE1) Typical Thermal Resistance(NOTE2) Operating and Storage Temperature Range NOTES: 1.Measured at 1.0 MHz and applied reverse voltage of 4.0 Volts. (20X20mm)copper heatsink. ” " " SYMBOLS UNITS VRRM VRMS VDC I(AV) IFSM VF IR T ,TJ STG -65 to +175 500 500 1.1 150 3.0 251 200 200 140 BY 252 400 400 280 BY 253 600 600 420 BY 254 800 800 560 BY 255 1300 1300 910 BY IR(AV) GENERAL PURPOSE SILICON RECTIFIER 40CJ Maximum Repetitive Peak Reverse Voltage Maximum DC Blocking Voltage Volts Volts Volts Amps Amps Volts Amps Amps pF O C/W O C R JA BY251-BY255 Http:// www.wej.cn E-mail:wej@yongerjia.com WEJ ELECTRONIC CO. RoHS
WEJ ELECTRONIC CO.,LTD 3.0 2.0 1.0 0 25 50 75 100 125 150 175 1 2 4 6 8 10 20 40 60 80100 100 1.0 0.1 0.01 100 0.1 1.0 10 100 8.3ms Single Half Sine-W ave (JEDEC Method) T =Tmaxj j FIG.1-TYPICAL FOR W ARD CURRENT DERA TING CUR VE FIG.2-MAXIMUM NON-REPETITIVE PEAK FOR W ARD SURGE CURRENT FIG.3-TYPICAL INST ANT ANEOUS FOR W ARD CHARACTERISTICS FIG.4-TYPICAL REVERSE CHARACTERISTICS FIG.5-TYPICAL JUNCTION CAP ACIT ANCE AMBIENT TEMPERA TURE,( C) o NUMBER OF CYCLES A T 60 Hz INST ANT ANEOUS FOR W ARD VOL T AGE,(V) PERCENT OF RA TED PEAK REVERSE VOL T AGE,(%) REVRESE VOL T AGE,(V) A VERAGE FOR W ARD CURRENT , (A) INST ANT ANEOUS REVERSE CURRENT , (uA) PEAK FOR W ARD SURGE CURRENT ,(A) INST ANT ANEOUS FOR W ARD CURRENT , (A) JUNCTION CAP ACIT ANCE,(pF)
1 Cycle
T =25 C Pulse Width=300us 1% Duty Cycle j o 1.0 0.1 0.01 0 20 40 60 80 100 120 140 T =100 Cj o T =25 Cj o Single Phase Half W ave 60Hz Resistive or Inductive Load 0.375 (9.5mm) Lead Length" T=25 C f=1MHz V =50mVp-p j o sig BY251-BY255 Http:// www.wej.cn E-mail:wej@yongerjia.com WEJ ELECTRONIC CO. RoHS