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| BY251 THRU BY255 3.0 AMPS. Silicon Rectifiers Voltage Range 200 to 1300 Volts Current 3.0 Amperes Features Low forward voltage drop High current capability High reliability High surge current capability DO-201AD Mechanical Data Cases: Molded plastic Epoxy: UL 94V-O rate flame retardant Lead: Axial leads, solderable per MILSTD-202, Method 208 guaranteed Polarity: Color band denotes cathode end High temperature soldering guaranteed: 260oC/10 seconds/.375",(9.5mm) lead lengths at 5 lbs., (2.3kg) tension Weight: 1.2 grams Dimensions in inches and (millimeters) Maximum Ratings and Electrical Characteristics Rating at 25ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20% Symbol BY251 BY252 BY253 BY254 BY255 Units Type Number Maximum Recurrent Peak Reverse Voltage 200 400 600 800 1300 V VRRM Maximum RMS Voltage 140 280 420 560 910 V VRMS Maximum DC Blocking Voltage 200 400 600 800 1300 V VDC Maximum Average Forward Rectified Current . 375 (9.5mm) Lead Length @TA = 75 Peak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method ) Maximum Instantaneous Forward Voltage @ 3.0A Maximum DC Reverse Current @ TA=25 at Rated DC Blocking Voltage @ TA=100 Maximum Full Load Reverse Current, Full Cycle Average .375"(9.5mm) Lead Length @TL=75 Typical Junction Capacitance Operating Temperature Range Storage Temperature Range ( Note 1 ) Typical Thermal Resistance ( Note 2 ) I(AV) IFSM VF IR 3.0 150 1.0 5.0 100 30 40 40 -65 to +150 -65 to +150 A A V uA uA uA pF /W HTIR Cj RJA TJ TSTG Notes: 1. Measured at 1 MHz and Applied Reverse Voltage of 4.0 V D.C. 2. Mount on Cu-Pad Size 16mm x 16mm on P.C.B. - 520 - RATINGS AND CHARACTERISTIC CURVES (BY251 THRU BY255) AVERAGE FORWARD CURRENT AMPERES PEAK FORWARD SURGE CURRENT. (A) 4 FIG.1- MAXIMUM FORWARD CURRENT DERATING CURVE 150 FIG.2- MAXIMUM FORWARD SURGE CURRENT 3 100 2 Single Phase Half Wave 60Hz Resistive or Inductive Load 0.375" (9.5mm) Lead Length 0 25 50 75 100 o 50 1 8.3ms Single Half Sine Wave JEDEC Method 10 1 10 5 NUMBER OF CYCLES AT 60Hz 50 100 0 125 150 175 AMBIENT TEMPERATURE. ( C) FIG.3- TYPICAL FORWARD CHARACTERISTICS 100 100 FIG.4- TYPICAL JUNCTION CAPACITANCE JUNCTION CAPACITANCE.(pF) INSTANTANEOUS FORWARD CURRENT. (A) 30 10 50 Tj=25 0C 10 5 3 1 Tj=25oC Pulse Width=300 s 1% Duty Cycle 1 0.1 1 5 10 REVERSE VOLTAGE. (V) 50 100 0.03 FIG.5- TYPICAL REVERSE CHARACTERISTICS INSTANTANEOUS REVERSE CURRENT. ( A) 100 0.6 0.8 1.0 1.2 1.4 FORWARD VOLTAGE. (V) 1.6 1.8 0.01 0.4 Tj=100 0C 1 0.1 Tj=25 0C 0.01 0 20 40 60 80 100 120 PERCENT OF RATED PEAK REVERSE VOLTAGE. (%) 140 - 521 - |
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