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BY251 Datasheet(PDF) 1 Page - Bytes |
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BY251 Datasheet(HTML) 1 Page - Bytes |
1 / 2 page 3.0 AMP SILICON RECTIFIERS MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Rating 25 C ambient temperature uniess otherwies specified. Single phase half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%. TYPE NUMBER Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current .375"(9.5mm) Lead Length at Ta=75 C FEATURES MECHANICAL DATA Peak Forward Surge Current, 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) Maximum Instantaneous Forward Voltage at 3.0A Maximum DC Reverse Current Ta=25 C at Rated DC Blocking Voltage Ta=100 C Typical Junction Capacitance (Note 1) BY251 BY252 BY253 BY254 BY255 UNITS 200 400 600 800 1300 V 200 400 600 800 1300 V 140 280 420 560 910 V 3.0 200 5.0 50 40 -65 +150 A V µA µA pF NOTES: 1. Measured at 1MHz and applied reverse voltage of 4.0V D.C. 2. Thermal Resistance from Junction to Ambient .375" (9.5mm) lead length. * Low forward voltage drop * High current capability * High reliability * High surge current capability * Case: Molded plastic * Epoxy: UL 94V-0 rate flame retardant * Lead: Axial leads, solderable per MIL-STD-202, method 208 guranteed * Polarity: Color band denotes cathode end * Mounting position: Any Weight: 1.10 grams BY251 BY255 THRU 1.0 Typical Thermal Resistance R JA (Note 2) θ 30 * VOLTAGE RANGE 200 to 1300 Volts CURRENT DO-27 Dimensions in inches and (millimeters) 1.0(25.4) MIN. 1.0(25.4) MIN. .375(9.5) .285(7.2) .052(1.3) .048(1.2) DIA. .220(5.6) .197(5.0) DIA. A 3.0 Amperes Operating and Storage Temperature Range T , T J STG C C/W |
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