HER254

HER251 - HER258 PRV : 50 - 1000 Volts Io : 2.5 Amperes FEATURES : * * * * * * High current capability High surge current capability High reliability Low reverse current Low forward voltage drop Fast switching for high efficiency HIGH EFFICIENT RECTIFIER DIODES D2A 0.161 (4.1) 0.154 (3.9) 1.00 (25.4) MIN. 0.284 (7.2) 0.268 (6.8) MECHANICAL DATA : * Case : D2A 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 : 0.645 gram 0.040 (1.02) 0.0385 (0.98) 1.00 (25.4) MIN. Dimensions in inches and ( millimeters ) 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%. MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS RATING Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Current 0.375"(9.5mm) Lead Length Ta = 55 °C Maximum Peak Forward Surge Current, 8.3ms Single half sine wave superimposed on rated load (JEDEC Method) Maximum Peak Forward Voltage at IF = 2.5 A Maximum DC Reverse Current at Rated DC Blocking Voltage Ta = 25 °C Ta = 100 °C SYMBOL VRRM VRMS VDC IF(AV) HER 251 50 35 50 HER 252 100 70 100 HER 253 200 140 200 HER 254 300 210 300 HER 255 400 280 400 HER 256 600 420 600 HER 257 800 560 800 HER 258 1000 700 1000 UNIT V V V A 2.5 IFSM ...