features batch process design, excellent power dissipation offers better reverse leakage current and thermal resistance. low profile surface mounted application in order to optimize board space. high current capability. ? fast switching for high efficiency. high surge current capability. glass passivated chip junction. ? ? ? ? ? ? mechanical data ? epoxy:ul94-v0 rated flame retardant ? case : molded plastic, jedec sma-ls ? terminals : solder plated, solderable per mil-std-750, method 2026 ? polarity : indicated by cathode band ? mounting position : any ? weight : approximated 0.05 gram 0.193(4.9) 0.177(4.5) 0.012(0.3) typ. 0.106(2.7) 0.091(2.3) 0.071(1.8) 0.055(1.4) 0.040 (1.0) typ. 0.040(1.0) typ. dimensions in inches and (millimeters) sma-ls FFM201LS ffm202ls ffm203ls 50 100 200 35 70 140 symbols v rrm (v) v rms v r (v) (v) *1 *2 *3 *1 repetitive peak reverse voltage *2 rms voltage *3 continuous reverse voltage *4 maximum forward voltage@if=2a *5 reverse recovery time v f (v) *4 ffm204ls ffm205ls 400 600 280 420 1.30 -55 to +150 ffm206ls ffm207ls 800 1000 560 700 o maximum ratings (at t =25 c unless otherwise noted) a parameter conditions forward rectified current forward surge current reverse current thermal resistance diode junction capacitance storage temperature see fig.1 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 r ja c j t stg a a ua o c/w o c pf 2.0 50 5.0 +175 -65 35 o v = v t = 25 c r rrm a o v = v t = 125 c r rrm a junction to ambient 40 100 t rr (ns) *5 150 250 500 50 100 200 400 600 800 1000 o (c) operating temperature t, j halogen free product for packing code suffix "h" rohs product for packing code suffix "g" 2.0a sufrace mount fast recovery rectifiers-50-1000v sma-ls package FFM201LS thru ffm207ls 2012-1 willas electronic corp. ?
0.2 2.0 .02 20 rating and characteristic curves fig.1-typical forward characteristics fig.2-typical forward current derating curve average forward current,(a) fig.5-typical junction capacitance reverse voltage,(v) junction capacitance,(pf) instantaneous forward current,(a) forward voltage,(v) pulse width 300us 1% duty cycle 0.4 0.8 1.2 1.6 2.0 2.4 70 60 50 40 30 20 10 0 (+) (+) 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 .01 .05 .1 .5 1 5 10 50 100 d.u.t. .6 .8 1.0 1.2 1.4 1.6 1.8 2.0 6.0 ambient temperature ( c) fig.3- test circuit diagram and reverse recovery time characteristics 10 noninductive 50 noninductive w w t =25 c j fig.4-maximum non-repetitive forward surge current peak forwaard surge current,(a) 10 0 20 30 40 50 number of cycles at 60hz 1 10 5 50 100 t =25 c j 8.3ms single half sine wave jedec method single phase half wave 60hz resistive or inductive load 0 20 40 60 80 100 120 140 160 180 200 0 2012-1 willas electronic corp. 2.0a sufrace mount fast recovery rectifiers-50-1000v sma-ls package FFM201LS thru ffm207ls
pinning information 1 2 2 1 pin1 cathode pin2 anode pin simplified outline symbol marking type number marking code FFM201LS f21 ffm202ls f22 ffm203ls f23 ffm204ls f24 ffm205ls f25 ffm206ls f26 ffm207ls f27 suggested solder pad layout dimensions in inches and (millimeters) a c b b 0.063 (1.60) a 0.110 (2.80) c 0.087 (2.20) package sma-ls 2012-1 willas electronic corp. 2.0a sufrace mount fast recovery rectifiers-50-1000v sma-ls package FFM201LS ffm207ls
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