BY251-BY255 3.0 AMP. Silicon Rectifiers DO-201AD Features High efficiency, Low VF High current capability High reliability High surge current capability Low power loss Mechanical Data Cases: Molded plastic Epoxy: UL 94V-0 rate flame retardant Polarity: Color band denotes cathode High temperature soldering guaranteed: o 260 C/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 25 oC 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 Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current . 375 (9.5mm) Lead Length o @T A = 75 C Peak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method ) Maximum Instantaneous Forward Voltage @ 3.0A V RRM V RMS V DC BY251 BY252 BY253 BY254 BY255 Units 200 140 200 400 280 400 600 420 600 Maximum Full Load Reverse Current, Full Cycle Average .375”(9.5mm) Lead Length @T L=75℃ Typical Junction Capacitance ( Note 1 ) Typical Thermal Resistance ( Note 2 ) Operating Temperature Range 1300 910 1300 3.0 A IFSM 150 A VF 1.0 V IR 5.0 100 uA uA HT IR 30 uA Cj 40 40 -65 to +150 -65 to +150 R θJA TJ Storage Temperature Range T STG 1. Measured at 1 MHz and Applied Reverse Voltage of 4.0 V D.C. Notes: 2. Mount on Cu-Pad Size 16mm x 16mm on P.C.B. http://www.luguang.cn V V V I(AV) o Maximum DC Reverse Current @ T A=25 C o at Rated DC Blocking Voltage @ T A=125 C 800 560 800 mail:[email protected] o pF C/W o C o C BY251-BY255 3.0 AMP. Silicon Rectifiers FIG.2- TYPICAL REVERSE CHARACTERISTICS FIG.1- MAXIMUM FORWARD CURRENT DERATING CURVE 4 3 2 Single Phase Half Wave 60Hz Resistive or Inductive Load 0.375" (9.5mm) Lead Length 1 0 0 25 50 75 100 125 150 175 o PEAK FORWARD SURGE CURRENT. (A) AMBIENT TEMPERATURE. ( C) INSTANTANEOUS REVERSE CURRENT. ( A) AVERAGE FORWARD CURRENT AMPERES RATINGS AND CHARACTERISTIC CURVES (BY251 THRU BY255) 100 Tj=125 0C 1 0.1 Tj=25 0C 0.01 0 20 40 60 80 100 120 PERCENT OF RATED PEAK REVERSE VOLTAGE. (%) FIG.3- MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT PER LEG 150 120 8.3ms Single Half Sine Wave PER LEG. (JEDEC Method) Tj=Tj max. 90 60 FIG.5- TYPICAL FORWARD CHARACTERISTICS 30 0 100 0 2 5 10 20 50 100 FIG.4- TYPICAL JUNCTION CAPACITANCE JUNCTION CAPACITANCE.(pF) 100 50 Tj=25 0C 10 5 1 1 5 10 REVERSE VOLTAGE. (V) 50 http://www.luguang.cn 100 INSTANTANEOUS FORWARD CURRENT. (A) NUMBER OF CYCLES AT 60Hz 30 10 3 1 Tj=25oC Pulse Width=300 s 1% Duty Cycle 0.1 0.03 0.01 0.4 0.6 0.8 1.0 1.2 1.4 FORWARD VOLTAGE. (V) 1.6 1.8 mail:[email protected] 140