page . 1 rev.0.2-aug.21.2009 data sheet MMBD4148/mmbd4448 surface mount switching diodes voltage 100 volts 250mwatts features ? fast switching speed. ? electrically ldentical to standerd jedec ? high conductance ? surface mount package ldeally suited for automatic lnsertion. ? in compliance with eu rohs 2002/95/ec directives mechanical data case: sot-23 plastic case. terminals : solderable per mil-std-750,method 2026 standard packaging: 8mm tape weight: approximately 0.008g power maximum ratings and electrical characteristics (t j =25c unless otherwise noted) note: 1. cj at v r =0, f=1mhz 2.from i f =10ma to i r =1ma, v r =6volts, r l =100 ? single parameter symbol MMBD4148 mmbd4448 units marking code a2 a3 reverse voltage v r 75 v peak reverse voltage v rm 100 v rms voltage v rms 50 v maximum dc blocking voltage v dc 75 v maximum average forward current at ta=25 o c i av 150 ma peak forward surge current, 1.0us i fsm 4 a power dissipation derate above 25 o c p tot 250 mw maximum forward voltage v f 0.715@0.001a 0.855@0.01a 1.0@ 0.05a 1.25@0.15a 0.72 / 0.005a 1.0 / 0.1a v maximum dc reverse current at rated dc blocking voltage t j = 25 o c i r 0.025@20v 2.5@75v 2.5@75v ua junction capacitance( notes1) cj 1.5 4.0 pf maximum reverse recovery (notes2) t rr 4.0 4.0 ns typical thermal resistance r ? ja 357 o c / w storage temperature range t j -55 to +150 o c
page . 2 rev.0.2-aug.21.2009 fig. 1-typical forward characteristic fig. 2-typical reverse characteristics fig. 3 power derating curve 0.2 0.1 1 10 100 1000 0.4 0.6 0.8 1.0 11 .. 24 0 10 1.0 0.1 0.01 0.001 20 40 60 80 100 0 200 300 400 500 100 50 100 150 200 forward current, ma forward vo l ta g e, volts rever s e current, a u rever s evo l ta g e, volts t =125 c j o t=75c j o t=25c j o p power di ss ipation (mw) d , ambient temperature( c) o
page . 3 rev.0.2-aug.21.2009 mounting pad layout ? packing information t/r - 12k per 13" plastic reel t/r - 3k per 7 plastic reel order information legal statement copyright panjit international, inc 2011 the information presented in this document is believed to be accurate and reliable. the specifications and information herein are subject to change without notice. pan jit makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose. pan jit products are not authorized for use in life support devices or systems. pan jit does not convey any license under its patent rights or rights of others.
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