BY251 thru BY255 CHENG- YI MEDIUM CURRENT PLASTIC RECTIFIER ELECTRONIC VOLTAGE RANGE-200 TO 1300 Volts CURRENT -3.0 Amperes DO-201AD FEATURE High surge current capability Plastic package has underwriters laboratory Flammability classification 94V-O Low leakage Void-free molded in DO-201AD plastic package High current operation of 3 Amperse at TA=950C with no thermal runaway Exceeds enviromental standard of MIL-STD19500/228 MECHANICAL DATA Case:JEDEC D0-201AD molded plastic Trminals:plated axials leads ,solderable per MIL-STD-750, Method 2026 Polarity:Color band denotes cathode Weight:0.04 ounce, 1.1gram Mounting Position:Any MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 250C ambient temperature unless otherwise specified. 60Hz, resistive or inductive load. For capacitive load, derate current by 20%. 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 lengths at T A=95 C I(AV) 3.0 A Peak Forward Surge Current 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) IFSM 100.0 A 0 Maximum Instantaneous Forward Voltage TJ =25 C at 3.0A T J =100 C VF Maximum DC Reverse Current TA=25 C at Rated DC Blocking Voltage TA =100 C IR 0 0 0 0 1.1 5.0 500 Typical Junction Capacitance (Note 2) TJ =25 C CJ 28.0 Typical Reverse Recovery Time (Note 3) TRR 2.5 Typical Thermal Resistance (Note1) T JA 15.0 Operating Junction Temperature Range TJ 0 Storage Temperature Range V 1.0 -55 to +150 -55 to +150 TSTG Notes : 1. Thermal Resistance from Junction to applied at ambient .375" (9.5mm) lead lengths, P.C. Board mounted. 2. Measured at 1 MHz and applied reverse voltage of 4.0 volts. 3. Reverse Recovery Test Conditions : IF=0.5A, I R=1.0A, Irr=0.25A. pF 0 C/W 0 C 0 C BY251 thru BY255 CHENG- YI MEDIUM CURRENT PLASTIC RECTIFIER ELECTRONIC RATING AND CHARACTERISTICS CURVES BY251 THRU BY255 Fig.2 - MAXIMUM PEAK FORWARD SURGE CURRENT Fig.1 - FORWARD CURRENT DERATING CURVE 8 1=.25"(6.3mm) 1=.301"(.79min) AVERAGE FORWARD CURRENT AMPERES 7 TJ=Both Leads to Heat Sink with Lengths (f) AS shown 6 1=.50"(12.7mm) 5 4 PEAK FORWARD SURGE CURRENT, (A) 200 3 2 1 8.3ms Single Half Sine Wave JEDEC Method 100 NON-REPETIVE 50 0 TJ=150C REPETIVE 10 1 5 TA=Ambient Temperature 0.275(9.5mm) Lead Lengths P.C. Board mounting Resistive or inductive Load 10 50 100 NUMBER OF CYCLES AT 60 Hz 0 40 60 80 100 120 140 160 180 0 TEMPERATURE, C Fig.4 - TYPICAL JUNCTION CAPACITANCE CAPACITANCE-pF 100 Fig.3 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 50 0 TJ=25C f=1MHz Visg=50m Vp-p 10 100 1 5 30 10 50 100 REVERSE VOLTAGE(V) 10 Fig.5 - TYPICAL REVERSE CHARACTERISTICS 3.0 0 TJ=25C Pulse Width-300 s 2% DUTY CYCLE 1.0 0.3 0.1 .03 .01 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 INSTANTANEOUS FORWARD VOLTAGE, (V) INSTANTANEOUS REVERSE CURRENT, (mA) INSTANTANEOUS FORWARD CURRENT, (A) 5 10 0 TA=100C 1.0 0.1 0 TA=25C .01 0 20 40 60 80 100 120 PERCENT OF RATED PEAK REVERSE VOLTAGE, (%) 140