BY251 EIC | Alldatasheet
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BY251 - BY255 SILICON RECTIFIER DIODES PRV : 200 - 1300 Volts Io : 3.0 Amperes FEATURES : * High current capability * High surge current capability * High reliability * Low reverse current * Low forward voltage drop 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 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%. SYMBOL BY251 BY252 BY253 BY254 BY255 UNIT Maximum Repetitive 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 Current 0.375"(9.5mm) Lead Length Ta = 50 °C Peak Forward Surge Current 8.3ms Single half sine wave Superimposed on rated load (JEDEC Method) Maximum Forward Voltage at I F = 3.0 Amps. VF 1.1 V Maximum DC Reverse Current Ta = 25 °C IR 20 µA at rated DC Blocking Voltage Ta = 100 °C IR(H) 50 µA Typical Junction Capacitance (Note1) CJ 50 pF Typical Thermal Resistance (Note2) RθJA 18 °C/W Junction Temperature Range TJ - 65 to + 175 °C Storage Temperature Range TSTG - 65 to + 175 °C Notes : (1) Measured at 1.0 MHz and applied reverse voltage of 4.0V DC Page 1 of 2 Rev. 01 : Mar 23, 2002 IFSM 100 A RATING IF 3.0 A DO - 201AD Dimensions in inches and ( millimeters ) 0.21 (5.33) 0.19 (4.83) 0.375 (9.53) 0.285 (7.24) 0.052 (1.32) 0.048 (1.22) 1.00 (25.4) MIN. 1.00 (25.4) MIN.
RATING AND CHARACTERISTIC CURVES ( BY251 - BY255 ) FIG.1 - DERATING CURVE FOR OUTPUT FIG.2 - MAXIMUM NON-REPETITIVE PEAK RECTIFIED CURRENT FORWARD SURGE CURRENT 0 25 50 75 100 125 150 175 1 2 4 6 10 20 40 60 100 AMBIENT TEMPERATURE, ( °C) NUMBER OF CYCLES AT 60Hz FIG.3 - TYPICAL FORWARD CHARACTERISTICS FIG 4 . - TYPICAL JUNCTION CAPACITANCE FIG. 5 - TYPICAL REVERSE CHARACTERISTICS Page 2 of 2 Rev. 01 : Mar 23, 2003 2.4 1.8 1.2 0.6 3.0 1.0 100 1.0 0.01 100 0.1 100 1400 20 40 60 120 PERCENT OF RATED REVERSE VOLTAGE, (%) PEAK FORWARD SURGE CURRENT, AMPERES AVERAGE FORWARD OUTPUT CURRENT, AMPERES FORWARD CURRENT, AMPERES REVERSE CURRENT, MICROAMPERES Ta = 25 °C Ta = 100 °C TJ = 25 °C Ta = 25 °C Pulse Width = 300 µs 2% Duty Cycle 0.1 100 TJ = 25 °C JUNCTION CAPACITANCE, (pF) REVERSE VOLTAGE, VOLTS 1 2 4 10 20 40 100 FORWARD VOLTAGE, VOLTS 0.01 NON-REPETITIVE