features fast switching speed surface mount package ideally suited for automatic insertion for general purpose switching applications high conductance mechanical data polarity: see diagram marking: ka3 maximum ratings @ 25 o c unless otherwise specified characteristic symbol value unit non-repetitive peak reverse volt. v rm 100 v peak repetitive reverse voltage v rrm working peak reverse voltage v rwm 75 v dc blocking voltage v r rms reverse voltage v r(rms) 53 v forward continuous current(note1) i fm 500 ma average rectified output current io 250 ma non-repetitive peak @ t<=1.0s i fsm 2a forward surge current @ t=1.0us 4 a power dissipation(note 1) pd 350 mw thermal resistance(note 1) r 357 k/w operation/storage temp. range tj, t stg -55 to +150 o c electrical characteristics @ 25 o c unless otherwise specified charateristic symbol min max unit test cond. 0.62 0.72 i f =5.0ma maximum forward v fm ----- 0.855 v i f =10ma voltage drop 1 i f =100ma 1.25 i f =150ma 2.5 ua v r =75v maximum peak i rm ----- 50 ua v r =75v tj=150 o c reverse current 30 ua v r =25v t j =150 o c 25 na v r =20v junction capacitance cj ----- 4 pf v r =0v, f=1.0mhz reverse recovery time t rr ----- 4 ns note : 1. valid provided that terminals are kept at ambient temperature mmbd4448 switching diode 350mw www. mccsemi .com sot-23 suggested solder pad layout dimensions inches mm dim min max min max note a .110 .120 2.80 3.04 b .083 .098 2.10 2.64 c .047 .055 1.20 1.40 d .035 .041 .89 1.03 e .070 .081 1.78 2.05 f .018 .024 .45 .60 g .0005 .0039 .013 .100 h .035 .044 .89 1.12 j .003 .007 .085 .180 k .015 .020 .37 .51 a b c d e f g h j .079 2.000 inches mm .031 .800 .035 .900 .037 .950 .037 .950 2. trr test condition: if=ir=10ma, irr=0.1*ir, r=100 ohm
omp onents 20736 marilla street chatsworth
mcc revision: 6 2008/01/01 tm micro commercial components surface mount 1 of 4 case material: molded plastic. ul flammability classification rating 94v-0 and msl rating 1
mmbd4448 admissable power dissipation - milliwatts versus ambient temperature - c figure 2 forward derating curve 0 175 50 75 100 125 0 70 140 210 single phase, half wave 60hz resistive or inductive load milliwatts c 150 280 350 420 junction capacitance - pf versus reverse voltage - volts instantaneous forward current - amperes versus instantaneous forward voltage - volts figure 1 typical forward characteristics 40 60 200 100 milliamps .4 .6 .8 1.0 1.2 1.4 .1 .2 .4 .6 1 2 4 6 10 20 25 c volts figure 3 junction capacitance .1 .2 1 .4 2 10 20 40 4 100 200 .1 .2 .6 1 2 10 pf volts 6 4 .4 400 1000 t j =25 c mcc www. mccsemi .com revision: 6 2008/01/01 tm micro commercial components 2 of 4
mmbd4448 1 100 4 0 0.4 0.8 1.2 8 figure 5 peak forward surge current peak forward surge current - amperes versus number of cycles at 60hz - cycles amps cycles 2 6 10 20 60 80 40 1.6 2.0 2.4 figure 4 typical reverse characteristics instantaneous reverse leakage current - nanoamperes versus junction temperature - c t j 40 60 200 100 nanoamps 20 120 40 60 80 100 .1 .2 .4 .6 1 2 4 6 10 20 t a =25 c 400 600 1000 140 mcc www. mccsemi .com www. mccsemi .com revision: 6 2008/01/01 tm micro commercial components 3 of 4
mcc revision: 6 2008/01/01 tm micro commercial components www. mccsemi .com 4 of 4 products are represented on our website, harmless against all damages. ***applications disclaimer*** ***important notice*** aerospace or military applications. products offer by micro commercial components corp . are not intended for use in medical, micro commercial components corp . reserve s the right to make changes without further notice to any product herein to make corrections, modifications , enhancements , improvements , or other changes . micro commercial components corp . does not assume any liability arising out of the application or use of any product described herein; neither does it convey any license under its patent rights ,nor the rights of others . the user of products in such applications shall assume all risks of such use and will agree to hold micro commercial components corp . and all the companies whose ordering information device packing (part number)-tp tape&reel;3kpcs/reel
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