RoHS BY251-BY255 GENERAL PURPOSE SILICON RECTIFIER VOLTAGE RANGE CURRENT FEATURES D T ,. L O 200 to 1300 Volts 3.0 Amperes Low cost construction Low forward voltage drop .052(1.3) DO-27 DIA. .048(1.2) Low reverse leakage High forward surge current capability 1.0(25.4) High temperature soldering guaranteed: MIN o 260 C/10 seconds/0.375 ＂ (9.5mm)lead length at 5 lbs (2,3kg) tension .375(9.5) MECHANICAL DATA .335(8.5) Case: Transfer molded plastic IC Epoxy: UL94V-0 rate flame retardant C .220(5.6) DIA .197(5.0) 1.0(25.4) Polarity: Color band denotes cathode end Lead: Plated axial lead ,solderable per MIL-STD-202E N method 208C Mounting position: Any Weight: 0.042 ounce,1.19 grams O MIN Dimensions in inches and (millimeters) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS R T o Ratings at 25 C ambient temperature unless otherwise specified. Single phase,half wave,60Hz,resistive or inductive load. For capacitive load derate current by 20%. C E L Maximum Repetitive Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage V RRM BY 251 200 BY 252 400 BY 253 600 BY 254 800 BY 255 1300 V RMS 140 280 420 560 910 V olts V DC 200 400 600 800 1300 V olts SYMBOLS UNITS V olts Maximum Average Forward Rectified Current o 0.375”(9.5mm) lead length at T A =75 C E A mps I (AV) 3.0 I FSM 150 A mps VF 1.1 V olts Peak Forward Surge Current 8.3ms single half sine-wave superimposed on J E rated load (JEDEC Method) Maximum Instantaneous Forward Voltage at 3.0A Maximum DC Reverse Current at rated DC blocking voltage o T A =25 C o T A =150 C Maximum Full Load Reverse Current,full cycle o average 0.375”(9.5mm) lead length at T L =105 C W 10 IR I R(AV) 500 A mps pF Typical Junction Capacitance(NOTE1) CJ 40 Typical Thermal Resistance(NOTE2) R 30 Operating and Storage Temperature Range A mps 500 JA T J ,T STG -65 to +175 O C/W O C NOTES: 1.Measured at 1.0 MHz and applied reverse voltage of 4.0 Volts. 2.Thermal Resistance from Junction to Ambient at 0.5”(12.5mm) lead length,P.C.board mounted with 0.8 ＂ X0.8 ＂ (20X20mm)copper heatsink. WEJ ELECTRONIC CO. Http:// www.wej.cn E-mail:[email protected] RoHS BY251-BY255 FIG.1-TYPICAL FORWARD CURRENT FIG.2-MAXIMUM NON-REPETITIVE PEAK Single Phase Half Wave 60Hz Resistive or Inductive Load 0.375 ＂(9.5mm) Lead Length 0 0 25 50 75 100 125 150 8.3ms Single Half Sine-Wave CURRENT,(A) PEAK FORWARD SURGE 2.0 1.0 175 150 (JEDEC Method) T j=Tjmax 90 30 0 o AMBIENT TEMPERATURE,( C) 1 Cycle 1 2 C 4 6 8 10 20 40 60 80100 NUMBER OF CYCLES AT 60 Hz IC FIG.3-TYPICAL INSTANTANEOUS FIG.4-TYPICAL REVERSE FORWARD CHARACTERISTICS N 100 CHARACTERISTICS R T 1.0 o T j=25 C Pulse Width=300us 1% Duty Cycle C E L 0.1 0.01 0.4 0.6 E 0.8 1.0 1.2 1.4 1.6 O 10 o T j=100 C 1.0 (uA) 10 INSTANTANEOUS REVERSE CURRENT, 20 (A) INSTANTANEOUS FORWARD CURRENT, D T ,. L O FORWARD SURGE CURRENT 210 (A) AVERAGE FORWARD CURRENT, DERATING CURVE 3.0 0.1 o T j=25 C 0.01 0 1.8 20 40 60 80 100 120 PERCENT OF RATED PEAK INSTANTANEOUS FORWARD VOLTAGE,(V) REVERSE VOLTAGE,(%) FIG.5-TYPICAL JUNCTION CAPACITANCE J E JUNCTION CAPACITANCE,(pF) 100 W 10 o Tj=25 C f=1MHz Vsig=50mVp-p 1 0.1 1.0 10 100 REVRESE VOLTAGE,(V) WEJ ELECTRONIC CO. Http:// www.wej.cn E-mail:[email protected] 140