BY550-50 ~ BY550-1000 SILICON RECTIFIER DIODES DO - 201AD PRV : 50 - 1000 Volts Io : 5.0 Amperes FEATURES : * * * * * * High current capability High surge current capability High reliability Low reverse current Low forward voltage drop Pb / RoHS Free 1.00 (25.4) MIN. 0.21 (5.33) 0.19 (4.83) 0.375 (9.53) 0.285 (7.24) 1.00 (25.4) MIN. 0.052 (1.32) 0.048 (1.22) MECHANICAL DATA : * Case : DO-201AD Molded plastic * Epoxy : UL94V-O rate flame retardant * Lead : Axial lead solderable per MIL-STD-202, Method 208 guaranteed * Polarity : Color band denotes cathode end * Mounting position : Any * Weight : 0.929 grams Dimensions in inches and ( millimeters ) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Rating at 25 °C ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20%. RATING SYMBOL BY550 BY550 BY550 BY550 BY550 BY550 - 50 - 100 - 200 - 400 - 600 - 800 100 200 400 600 800 UNIT 1000 V Maximum Repetitive Peak Reverse Voltage VRRM Maximum RMS Voltage VRMS 35 70 140 280 420 560 700 V Maximum DC Blocking Voltage VDC 50 100 200 400 600 800 1000 V Maximum Average Forward Current 0.375"(9.5mm) Lead Length Ta = 60°C Peak Forward Surge Current 8.3ms Single half sine wave Superimposed on rated load (JEDEC Method) Maximum Forward Voltage at IF = 5.0 Amps. 50 BY550 - 1000 IF 5.0 A IFSM 300 A VF 1.1 Maximum DC Reverse Current Ta = 25 °C IR 20 V µA at rated DC Blocking Voltage Ta = 100 °C IR(H) 50 µA Typical Junction Capacitance (Note1) CJ 50 pF Typical Thermal Resistance (Note2) °C/W Junction Temperature Range RθJA TJ 18 - 65 to + 175 °C Storage Temperature Range TSTG - 65 to + 175 °C Notes : (1) Measured at 1.0 MHz and applied reverse voltage of 4.0VDC (2) Thermal resistance from Junction to Ambient at 0.375" (9.5mm) Lead Lengths, P.C. Board Mounted. Page 1 of 2 Rev. 02 : March 25, 2005 RATING AND CHARACTERISTIC CURVES ( BY550-50 - BY550-1000 ) FIG.1 - DERATING CURVE FOR OUTPUT RECTIFIED CURRENT FIG.2 - MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT 300 PEAK FORWARD SURGE CURRENT, AMPERES AVERAGE FORWARD OUTPUT CURRENT, AMPERES 5 4 3 2 1 0 0 25 50 75 100 125 150 Ta = 25 °C 240 180 120 60 0 175 1 2 AMBIENT TEMPERATURE, ( °C) FIG.3 - TYPICAL FORWARD CHARACTERISTICS 6 10 20 40 60 100 FIG 4 . - TYPICAL JUNCTION CAPACITANCE JUNCTION CAPACITANCE, (pF) FORWARD CURRENT, AMPERES 100 10 Pulse Width = 300 µs 2% Duty Cycle 1.0 4 NUMBER OF CYCLES AT 60Hz T J = 25 °C 100 T J = 25 °C 50 10 5 1 1 2 4 10 20 40 100 REVERSE VOLTAGE, VOLTS 0.1 FIG. 5 - TYPICAL REVERSE CHARACTERISTICS 10 0.01 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 FORWARD VOLTAGE, VOLTS 1.8 2.0 Ta = 100 °C REVERSE CURRENT, MICROAMPERES 0 1.0 0.1 Ta = 25 °C 0.01 0 20 40 60 80 100 120 140 PERCENT OF RATED REVERSE VOLTAGE, (%) Page 2 of 2 Rev. 02 : March 25, 2005