1N4448W 500mw 100 volts switching diode sod123 maximum ratings @ 25 c unless otherwise specified reverse voltage v r 75 v peak reverse voltage v rm 100 v average rectified current i o 250 ma peak forward surge current i fsm 2a power dissipation p d 500 mw thermal resistance* r thja 250 c/w operation/storage temp. range t j ,t stg -55 to +150 c electrical characteristics @ 25 c unless otherwise specified maximum instantaneous forward voltage v f 1.0v i fm = 100ma; t j = 25 c (note 1) typical junction capacitance c j 4pf measured at 1.0mhz, v r =4.0v reverse recovery time t rr 4ns i f =10ma v r = 6v r l =100 ? dimensions inches mm dim min m a x min m a x note a .140 .152 3.55 3.85 b .100 .112 2.55 2.85 c .055 .071 1.40 1.80 d ----- .053 ----- 1.35 e .012 .031 0.30 .78 g .006 ----- 0.15 ----- h ----- .01 ----- .25 j ----- .006 ----- .15 a b e c j d h g 0.036? 0.093 0.048? suggested solder pad layout
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mcc maximum dc reverse current at rated dc blocking voltage i r 25na 50 a v r =20volts t j = 25 c t j = 150 c 2.5ua v r =75volts www. mccsemi .com revision: b 2011/08/25 tm micro commercial components features x fast switching speed x for general purpose switching applications x surface mount package ideally suited for automatic insertion maximum ratings mechanical data x marking code: t 5 1 of 4 lead free finish/rohs compliant ("p" suffix designates rohs compliant. see ordering information) note: 1. valid provided that terminals are kept at ambient temperature epoxy meets ul 94 v-0 flammability rating moisture sensitivity level 1
admissable power dissipation - milliwatts versus ambient temperature - c figure 2 forward derating curve 0 175 50 75 100 125 0 100 200 300 single phase, half wave 60hz resistive or inductive load milliwatts c 150 400 500 600 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 1N4448W www. mccsemi .com revision: b 2011/08/25 tm micro commercial components 2 of 4
1N4448W 1 100 4 0 100 200 300 8 figure 5 peak forward surge current peak forward surge current - amperes versus number of cycles at 60hz - cycles milliamps cycles 2 61020 60 80 40 400 500 600 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 t a =100 c mcc www. mccsemi .com revision: b 2011/08/25 tm micro commercial components 3 of 4
mcc tm micro commercial components www. mccsemi .com 4 of 4 ordering information device packing (part number)-tp tape&reel:3kpcs/reel revision: b 2011/08/25 ***important notice*** 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 products are represented on our website, harmless against all damages. ***life support*** mcc's products are not authorized for use as critical components in life support devices or systems without the express written approval of micro commercial components corporation. ***customer awareness*** counterfeiting of semiconductor parts is a growing problem in the industry. micro commercial components (mcc) is taking strong measures to protect ourselves and our customers from the proliferation of counterfeit parts. mcc strongly encourages customers to purchase mcc parts either directly from mcc or from authorized mcc distributors who are listed by country on our web page cited below. products customers buy either from mcc directly or from authorized mcc distributors are genuine parts, have full traceability, meet mcc's quality standards for handling and storage. mcc will not provide any warranty coverage or other assistance for parts bought from unauthorized sources. mcc is committed to combat this global problem and encourage our customers to do their part in stopping this practice by buying direct or from authorized distributors.
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