byt54a-lfr thru byt54m-lfr page: 1 frontier electronics corp. 667 e. cochran street, simi valley, ca 93065 tel: (805) 522-9998 fax: (805) 522-9989 e-mail: frontiersales@frontierusa.com web: http://www.frontierusa.com 1a ultra fast recovery rectifier byt54a-lfr thru byt54m-lfr features z fast recovery times z ul 94v0 flame retardant epoxy molding compound z diffused junction z low cost z high surge current capability z bevel round chip, avalanche operation z lead free mechanical data z case: transfer molded, do41, dimensions in inches and (millimeters) z leads: solderable per mil-std-202,method 208 z polarity: cathode indicated by color band z weight: 0.34 grams maximum ratings and electrical characteristics ratings at 25 c ambient temperature unless otherwise specified single phase, half wave, 60 hz, resistive or inductive l oad. for capacitive load, derate current by 20% ratings symbol byt54a -lfr byt54b -lfr byt54d -lfr byt54g -lfr byt54j -lfr byt54k -lfr byt54m -lfr units maximum recurrent peak reverse voltage v rrm 50 100 200 400 600 800 1000 v maximum rms voltage v rms 35 70 140 280 420 560 700 v maximum dc blocking voltage v dc 50 100 200 400 600 800 1000 v maximum average forward rectified current 0.375?(9.5mm) lead length at ta=55 c i o 1.0 a peak forward surge current, 8.3ms single half sine-wave superimposed on rated load i fsm 30 a typical junction capacitance (note 1) c j 17 pf typical thermal resistance (note 2) r ja 50 /w storage temperature range t stg -55 to + 150 c operating temperature range t op -55 to + 150 c electrical characteristics (a t t a =25 c unless otherwise noted) characteristics symbol byt54a -lfr byt54b -lfr byt54d -lfr byt54g -lfr byt54j -lfr byt54k -lfr byt54m -lfr units maximum forward voltage at i o dc v f 1.5 v maximum reverse current at 25 i r 5 a maximum reverse current at100 i r 40 a maximum reverse recovery time (note 3) t rr 100 ns note: 1. measured at 1 mhz and applied reverse voltage 0f 4.0 volts 2. both leads attached to heat sink 20x20x1t(mm) copper pla te at lead length 5mm 3. reverse recovery test conditions: i f =0.5a, i r =1.0a, i rr =0.25a .205(5.2) .166(4.2) 1.0(25.4) min .034(0.9) .028(0.7) 1.0(25.4) min .107(2.7) .080(2.0)
byt54a-lfr thru byt54m-lfr page: 2 1c m ratings and characteristic curve byt54a-lfr thru byt54m-lfr peak forward surge current (a) instantaneous reverse current (ua) fig. 5-maximun non-repetitive forward surge current 50 40 30 20 10 0 0 1 2 4 6 10 20 40 60 100 number of cycles at 60 hz 8.3 ms single half sine wave (jedec method) fig. 6-typical junction capacitance .1 .2 .4 1.0 2 4 10 20 40 100 reverse voltage (v) 200 100 40 20 10 6 4 2 1 junction capacitance (pf) t j =25 o c fig. 4-typical instantaneous forward characteristics .2 .4 .6 .8 1.0 1.2 1.4 1.6 1.8 2.0 instantaneous forward voltage (v) 100 10 1 .1 .01 instantaneous forward current (a) fig. 3-typical reverse characteristics 20 40 60 80 100 120 140 percent of rated peak reverse voltage (%) 1000 100 10 1 0.1 t j =25 o c t j =80 o c t j =125 o c average forward current (a) 2.0 1.0 0 25 50 75 100 125 150 175 ambient temperature ( o c) fig. 2-typical forward current derating curve single phase half wave 60 hz resistive or inductive load +0.5a 0 -0.25a -1.0a trr set time base for 10/20 ns/cm fig. 1-test circuit diagram and reverse recovery time characteristic pulse generator ( note 2 ) (+) 25 v dc (approx) (-) d.u.t. 1 non inductive oscilloscope ( note 1 ) 50 no inductive 10 no inductive (-) (+) note: 1. rise time=7ns max. input impedance=1 mohms 22pf 2. rise time =10ns max. source impedance=50ohms
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