chongqing pingyang electronics co.,ltd. UF3A thru uf3k ultrafast rectifier voltage 50-800v current 3.0a features low power loss, high efficiency low leakage low forward voltage high current capability high speed switching high surge capability high reliability mechanical data case : molded plastic epoxy : ul94v-0 rate flame retardant lead : mil-std- 202e, method 208 guaranteed polarity : color band denotes cathode end mounting position : any weight : 0.24 grams maximum ratings and electronical characteristics ratings at 25 ambient temperature unless otherwise specified. single phase, half wave, 60hz,resistive or inductive load. for capacitive load, derate current by 20%. symbol UF3A uf3b uf3d uf3g uf3j uf3k units maximum recurrent peak reverse voltage v rrm 50 100 200 400 600 800 v maximum rms voltage v rms 35 70 140 280 420 560 v maximum dc blocking voltage v dc 50 100 200 400 600 800 v maximum average forward rectified current at t a =50 c i o 3.0 a peak forward surge current 8.3ms single half sine-wave superimposed on rate load (jedec method) i fsm 100 a maximum instantaneous forward voltage at 1.0a dc v f 1.0 1.4 1.7 v maximum dc reverse current at rated dc blocking voltage t a =25 c 10 maximum full load reverse current full cycle average,.375 (9.5mm) lead length at t l =75 c i r 100 a maximum reverse recovery time (note 1) t rr 50 75 ns typical junction capacitance (note 2) c j 15 12 pf notes: 1.test conditions: i f =0.5a, i r =1.0a, i rr =0.25a 2.measured at 1mhz and applied reverse voltage of 4.0 volts smc ( do-214ab ) dimensions in inches and (millimeters) pdf ?? "pdffactory pro" e www.fineprint.cn
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