page 1 formosa ms lfm220 thru lfm240 1 2 2 2 2 3 4 4 4 5 6 6 7 list list................................................................................................. package outline............................................................................... features.......................................................................................... maximum ratings ............................................................................. rating and characteristic curves........................................................ pinning information........................................................................... marking........................................................................................... suggested solder pad layout............................................................. packing information.......................................................................... reel packing.................................................................................... suggested thermal profiles for soldering processes............................. high reliability test capabilities........................................................... mechanical data............................................................................... chip schottky barrier rectifier http://www.formosams.com/ tel:886-2-22696661 fax:886-2-22696141 document id issued date revised date revision page. ds-12160p 2008/02/10 2010/03/10 d 7
mechanical data epoxy:ul94-v0 rated flame retardant case : molded plastic, terminals : solder plated, solderable per mil-std-750, method 2026 polarity : indicated by cathode band mounting position : any weight : 0.05 gram ? ? ? ? ? ? do-214ac / sma approximated package outline page 2 parameter conditions forward rectified current forward surge current reverse current diode junction capacitance storage temperature see fig.1 8.3ms single half sine-wave (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 ma o c pf 2.0 50 0.2 +175 -65 v = v t = 25 c r rrm j o v = v t = 100 c r rrm j o 250 20 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. low power loss, high efficiency. high current capability, l ultra high-speed switching. silicon epitaxial planar chip, metal silicon junction. lead-free parts meet environmental standards of mil-std-19500 /228 features ow forward voltage drop. high surge capability. guardring for overvoltage protection. ? suffix "-h" indicates halogen-free parts, ex. lfm220-h. ? ? ? ? ? ? ? ? ? lfm220 LFM230 lfm240 20 30 40 14 21 28 20 30 40 -55 to +125 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@i =2.0a f v f (v) *4 0.45 formosa ms 2.0a surface mount schottky barrier rectifiers - 20v-40v chip schottky barrier rectifier (c) o operating temperature t, j http://www.formosams.com/ tel:886-2-22696661 fax:886-2-22696141 lfm220 thru lfm240 document id issued date revised date revision page. 0.196(4.9) 0.180(4.5) 0.012(0.3) typ. 0.106(2.7) 0.091(2.3) 0.068(1.7) 0.060(1.5) 0.032 (0.8) typ. 0.032(0.8) typ. dimensions in inches and (millimeters) sma ds-12160p 2008/02/10 2010/03/10 d 7 maximum ratings and electrical characteristics (at t =25 a o c unless otherwise noted)
page 3 0.1 1.0 .01 10 50 rating and characteristic curves (lfm220 thru lfm240) fig.1-typical forward current derating curve average for ward current ,(a) fig.4-typical junction capacitance reverse voltage,(v) junction cap acitance,(pf) instantaneous for ward current ,(a) forward voltage,(v) pulse width 300us 1% duty cycle 0.5 1.0 1.5 2.0 2.5 3.0 700 600 500 400 300 200 100 0 .01 .05 .1 .5 1 5 10 50 100 .1 .3 .5 .7 .9 1.1 1.3 1.5 3.0 .1 1.0 10 100 fig.5 - typical reverse characteristics reverse leakage current , (ma) 0 20 40 60 80 100 120 140 .01 t =75 c j t =25 c j t =25 c j lead temperature,( c) 0 0 20 40 60 80 100 120 140 160 180 200 fig.2-typical forward characteristics percent of rated peak reverse voltage,(%) http://www.formosams.com/ tel:886-2-22696661 fax:886-2-22696141 document id issued date revised date revision page. ds-12160p 2008/02/10 2010/03/10 d 7 fig.3-maximum non-repetitive forward surge current 0 20 10 30 50 40 number of cycles at 60hz 110 5 50 100 t =25 c j 8.3ms single half sine wave jedec method peak for ward surge current ,(a)
pinning information 2 1 pin1 cathode pin2 anode pin simplified outline symbol marking type number marking code lfm220 22l LFM230 23l lfm240 24l 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 page 4 1 2 formosa ms chip schottky barrier rectifier http://www.formosams.com/ tel:886-2-22696661 fax:886-2-22696141 lfm220 thru lfm240 document id issued date revised date revision page. ds-12160p 2008/02/10 2010/03/10 d 7
packing information item tolerance sma carrier width carrier length carrier depth sprocket hole 13" reel outside diameter 7" reel outside diameter 13" reel inner diameter 7" reel inner diameter feed hole diameter sprocket hole position punch hole position punch hole pitch sprocket hole pitch embossment center reel width overall tape thickness tape width p 0 p 1 e b c d f t w p a d d d 1 d 1 d 2 w 1 symbol 0.1 0.1 0.1 min min 0.5 0.1 0.3 1.0 0.1 0.1 0.1 0.1 0.1 0.1 2.0 2.0 unit:mm 1.50 330.00 178.00 50.00 62.00 13.00 1.75 5.50 4.00 4.00 2.00 0.23 12.00 18.00 p 0 p 1 e b d f w p a d d 1 d 2 w 1 c t page 5 note:devices are packed in accor dance with eia standar rs-481-a and specifications listed above. 2.80 5.00 1.90 formosa ms chip schottky barrier rectifier http://www.formosams.com/ tel:886-2-22696661 fax:886-2-22696141 lfm220 thru lfm240 document id issued date revised date revision page. ds-12160p 2008/02/10 2010/03/10 d 7
page 6 formosa ms chip schottky barrier rectifier http://www.formosams.com/ tel:886-2-22696661 fax:886-2-22696141 lfm220 thru lfm240 document id issued date revised date revision page. reel packing sma 7" 2,000 4.0 20,000 183*155*183 178 382*356*392 160,000 16.0 package reel size reel component spacing box inner box reel dia, carton size carton approx. gross weight (kg) (pcs) (m/m) (m/m) (m/m) (pcs) (m/m) (pcs) sma 13" 7,500 4.0 15,000 337*337*37 330 350*330*360 120,000 14.2 profile feature soldering condition average ramp-up rate(t to t ) <3 /sec preheat -temperature min(tsmin) 150 -temperature max(tsmax) 200 -time(min to max)(t ) 60~120sec tsmax to t -ramp-uprate <3 /sec time maintained above: -temperature(t ) 217 -time(t ) 60~260sec peak temperature(t ) 255 0/ 5 time within 5 of actual peak temperature(t ) ramp-down rate <6 /sec time 25 to peak temperature <6minutes lp s l l l p p o o o o o oo o o o c c c c c c- + c c c c 10~30sec 3.reflow soldering 1.storage environment: temperature=5 ~40 humidity=55%25% 2.reflow soldering of surface-mount devices oo cc suggested thermal profiles for soldering processes critical zone tl to tp critical zone tl to tp tl tsmax tsmin ramp-up tp ts preheat t25 c to peak o time 25 tl tp ramp-down temperature ds-12160p 2008/02/10 2010/03/10 d 7
page 7 formosa ms chip schottky barrier rectifier http://www.formosams.com/ tel:886-2-22696661 fax:886-2-22696141 lfm220 thru lfm240 document id issued date revised date revision page. ds-12160p 2008/02/10 2010/03/10 d 7 1. solder resistance 2. solderability 3. high temperature reverse bias 4. forward operation life 5. intermittent operation life 6. pressure cooker 7. temperature cycling 8. forward surge 9. humidity 10. high temperature storage life at 260 5 for 10 2sec. immerse body into solder 1/16" 1/32" at 245 5 for 5 sec. v =80% rate at t =125 for 168 hrs. rated average rectifier current at t =25 for 500hrs. t = 25 c, i = i on state: power on for 5 min. off state: power off for 5 min. on and off for 500 cycles. 15p at t =121 for 4 hrs. -55 to +125 dwelled for 30 min. and transferred for 5min. total 10 cycles. 8.3ms single half sine-wave , one surge. at t =85 , rh=85% for 1000hrs. at 175 for 1000 hrs. c c c c c cc c c o o o o o oo o o rj a afo sig a a o mil-std-750d method-2031 mil-std-202f method-208 mil-std-750d method-1038 mil-std-750d method-1027 mil-std-750d method-1036 mil-std-750d method-1051 mil-std-750d method-4066-2 mil-std-750d method-1021 mil-std-750d method-1031 jesd22-a102 item test conditions reference high reliability test capabilities
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