parameter conditions forward rectified current forward surge current reverse current typical diode junction capacitance storage temperature see fig.2 8.3ms single half sine-wave superimposed on rate load (jedec methode) f=1mhz and applied 4v dc reverse voltage symbol min. typ. max. unit i o i fsm i r c j t stg a a a o c pf 1.0 30 5.0 +175 -65 o v = v t = 25 c r rrm j 25 SFM18-FN3 60 0 420 sym bols v rrm (v) v rms v r (v) (v) *1 *2 *3 v f (v) *4 -55 to +150 35 600 1.70 o ( c) operating temperature t , j note 1. reverse recovery time test condition, i f =0.5a, i r =1.0a, i rr =0.25a t rr (ns) *5 maximum ratings and electrical characteristics (at t =25 a o c unless otherwise noted) features low profile surface mounted application in order to optimize board space. glass passivated chip junction. ? . ? ? ? mini flat no-lead package. mechanical data epoxy:ul94-v0 rated flame retardant ? case : mfn-323 ? mounting position : any ? package outline mfn-323 0.044(1.10) 0.036(0.90) 0.017(0.43) 0.013(0.33) 0.056(1.40) 0.048(1.20) 0.026(0.66) 0.022(0.56) 0.103(2.60) 0.095(2.40) 0.026(0.65) 0.014(0.35) dimensions in inches and (millimeters) *1 maximun repetitive peak reverse voltage *2 maximun rms voltage *3 maximun *4 maximum forward voltage@i =1.0a,t =25 c f j *5 maximum reverse recovery time, note 1 dc blocking voltage 2012- 0 willas electronic corp. 1.0a surface mount super fast rectifiers - 600v mfn-323 package SFM18-FN3 ? preliminary
.4 .6 .8 1.0 1.2 1.4 .001 .01 .1 1.0 10 rating and characteristic curves fig.1-typical forward characteristics instantaneous forward current,(a) forward voltage,(v) pulse width 300us 1% duty cycle (+) (+) 25vdc (approx.) ( ) ( ) pulse generator (note 2) oscilliscope (note 1) 1 non- inductive w notes: 1. rise time= 7ns max., input impedance= 1 megohm.22pf. 2. rise time= 10ns max., source impedance= 50 ohms. +0.5a 0 -0.25a -1.0a | | | | | | | | 1cm set time base for 50 / 10ns / cm trr d.u.t. fig.3- test circuit diagram and reverse recovery time characteristics 10 noninductive 50 noninductive w w t =25 c j fig.2-typical forward current average forward current,(a) 0.2 0.4 0.6 0.8 1.0 1.2 derating curve ambient temperature ( c) 1.6 1.8 0 25 50 75 100 125 150 175 0 fig.5-typical junction capacitance reverse voltage,(v) junction capacitance,(pf) 70 60 50 40 30 20 10 0 .01 .05 .1 .5 1 5 10 50 100 fig.4-maximum non-repetitive forward surge current peak forwaard surge current,(a) number of cycles at 60hz 10 0 20 30 40 50 1 10 5 50 100 t =25 c j 8.3ms single half sine wave jedec method 2012- 0 willas electronic corp. 1.0a surface mount super fast rectifiers - 600v mfn-323 package SFM18-FN3 preliminary
pinning information 1 2 2 1 pin1 cathode pin2 anode pin simplified outline symbol marking type number marking code SFM18-FN3 s6 suggested solder pad layout dimensions in inches and (millimeters) (1.90) 0.075 (0.70) 0.028 (0.50) 0.020 (0.90) 0.036 (0.50) 0.020 2012- 0 willas electronic corp. 1.0a surface mount super fast rectifiers - 600v mfn-323 package SFM18-FN3 preliminary
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