BY251 TSC
Document overview
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Technical content
Features
/cuspopen Low forward voltage drop /cuspopen High current capability /cuspopen High reliability /cuspopen High surge current capability Mechanical Data /cuspopen Cases: Molded plastic /cuspopen Epoxy: UL 94V-O rate flame retardant /cuspopen Lead: Axial leads, solderable per MIL- STD-202, Method 208 guaranteed /cuspopen Polarity: Color band denotes cathode end /cuspopen High temperature soldering guaranteed: 260oC/10 seconds/.375”,(9.5mm) lead lengths at 5 lbs., (2.3kg) tension /cuspopen Weight: 1.2 grams DO-201AD Dimensions in inches and (millimeters) Maximum Ratings and Electrical Characteristics Rating at 25℃ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20% Type Number Symbol BY251 BY252 BY253 BY254 BY255 Units Maximum Recurrent Peak Reverse Voltage VRRM 200 400 600 800 1300 V Maximum RMS Voltage VRMS 140 280 420 560 910 V Maximum DC Blocking Voltage VDC 200 400 600 800 1300 V Maximum Average Forward Rectified Current . 375 (9.5mm) Lead Length A = 75℃ I(AV) 3.0 A Peak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method ) IFSM 150 A Maximum Instantaneous Forward Voltage @ 3.0A VF 1.0 V Maximum DC Reverse Current @ T A=25℃ at Rated DC Blocking Voltage @ T A=100℃ IR 5.0 100 uA uA Maximum Full Load Reverse Current, Full Cycle Average .375”(9.5mm) Lead Length @TL=75℃ HTIR 30 uA Typical Junction Capacitance ( Note 1 ) Cj 40 pF Typical Thermal Resistance ( Note 2 ) RθJA 40 ℃/W Operating Temperature Range TJ -65 to +150 ℃ Storage Temperature Range TSTG -65 to +150 ℃ Notes: 1. Measured at 1 MHz and Applied Reverse Voltage of 4.0 V D.C. 2. Mount on Cu-Pad Si ze 16mm x 16mm on P.C.B.
- 521 - FIG.5- TYPICAL REVERSE CHARACTERISTICS 0 20 40 60 80 100 120 140 0.01 0.1 100 PERCENT OF RATED PEAK REVERSE VOLTAGE. (%) Tj=25 C0 Tj=100 C0 RATINGS AND CHARACTERISTIC CURVES (BY251 THRU BY255) FORWARD VOLTAGE. (V) FIG.3- TYPICAL FORWARD CHARACTERISTICS INSTANTANEOUS FOR WARD CURRENT . (A) 0.01 100 0.03 0.1 Tj=25 C Pulse Width=300 s 1% Duty Cycle o FIG.4- TYPICAL JUNCTION CAPACITANCE JUNCTION CAP ACITANCE.(pF) 100501015 100 REVERSE VOLTAGE. (V) Tj=25 C0 FIG.1- MAXIMUM FORWARD CURRENT DERATING CURVE AVERAGE FOR WARD CURRENT AMPERES 250 50 75 100 125 150 175 AMBIENT TEMPERATURE. ( C) o Single Phase Half Wave 60Hz Resistive or Inductive Load 0.375" (9.5mm) Lead Length FIG.2- MAXIMUM FORWARD SURGE CURRENT PEAK FOR WARD SURGE CURRENT . (A) 10 5051 100 100 150 NUMBER OF CYCLES AT 60Hz 8.3ms Single Half Sine Wave JEDEC Method INSTANTANEOUS REVERSE CURRENT .( A )