low capacitance tvs array 1 05051.r12 4/08 www.protekdevices.com sm16lc03 thru sm16lc36c applications ? wireless communication circuits ? rs-422, rs-432 & rs-485 ? low voltage asics ? ethernet - 10/100 base t iec compatibility (en61000-4) ? 61000-4-2 (esd): air - 15kv, contact - 8kv ? 61000-4-4 (eft): 40a - 5/50ns ? 61000-4-5 (surge): 12a, 8/20s level 1 (line-ground) & level 2 (line-line) features ? 500 watts peak pulse power per line (tp=8/20s) ? unidirectional & bidirectional configurations ? esd protection > 40 kilovolts ? available in multiple voltage types: 3.3v to 36v ? protects up to eight (8) lines ? low capacitance: 15pf ? rohs compliant mechanical characteristics ? molded jedec so-16 package ? weight 0.15 grams (approximate) ? available in lead-free pure-tin plating(annealed) ? solder reflow temperature: pure-tin - sn, 100: 260-270c ? flammability rating ul 94v-0 ? 16mm tape and reel per eia standard 481 ? marking: logo, part number, date code & pin one defined by dot on top of package 05051 pin configurations so-16
bidirectional configuration unidirectional configuration
sm16lc03 thru sm16lc36c 2 05051.r12 4/08 www.protekdevices.com device characteristics maximum ratings @ 25c unless otherwise specified operating temperature symbol value -55 to 150 c c -55 to 150 units t l t stg parameter storage temperature peak pulse power (t p = 8/20s) - see figure 1 p pp 500 watts 1.5 volts v f forward voltage @ 50ma, 300s- square wave (note 1) 260 c t ii soldering temperature for 10 seconds note 1: only applies to unidirectional devices. part number (see note 1) rated stand-off voltage v wm volts maximum clamping voltage (see fig. 2) @ i p = 1a v c volts maximum clamping voltage (see fig. 2) @8/20s v c @ i pp maximum leakage current @v wm i d a temperature coefficient of v (br) qv (br) mv/c sm16lc03 sm16lc03c sm16lc05 sm16lc05c sm16lc08 sm16lc08c sm16lc12 sm16lc12c sm16lc15 sm16lc15c sm16lc24 sm16lc24c sm16lc36 sm16lc36c 3.3 3.3 5.0 5.0 8.0 8.0 12.0 12.0 15.0 15.0 24.0 24.0 36.0 36.0 7.0 7.0 9.8 9.8 13.4 13.4 19.0 19.0 25.5 25.5 40.0 40.0 53.0 53.0 20.0v @ 35a 20.0v @ 35a 24.0v @ 42a 24.0v @ 42a 26.0v @ 30a 26.0v @ 30a 33.0v @ 21a 33.0v @ 21a 39.0v @ 15a 39.0v @ 15a 57.0v @ 10a 57.0v @ 10a 72.0v @ 7.0a 72.0v @ 7.0a 125 125 20 20 10 10 2 2 2 2 2 2 2 2 -3 -3 3 3 9 9 16 16 17 17 26 26 36 36 maximum capacitance 0v @ 1 mhz c pf 15 15 15 15 15 15 15 15 15 15 15 15 15 15 minimum breakdown voltage @ 1ma v (br) volts 4.5 4.5 6.0 6.0 8.5 8.5 13.3 13.3 16.7 16.7 26.7 26.7 40.0 40.0 electrical characteristics per line @ 25c unless otherwise specified note 1: part numbers with a ?c? suffix are bidirectional devices, i.e., sm16lc05 c.
3 05051.r12 4/08 www.protekdevices.com sm16lc03 thru sm16lc36c graphs 0 5 10 15 20 25 30 t - time - s 0 20 40 60 80 100 120 i pp - peak pulse current - % of i pp test waveform parameters t f = 8s t d = 20s t f peak value i pp e -t t d = t i pp /2 figure 2 pulse wave form 0.1 1 10 100 1,000 10,00 0 t d - pulse duration - s 500w 8/20s waveform 10 100 1,000 10,000 p pp - peak pulse power - watts figure 1 peak pulse power vs pulse time 0 25 50 75 100 125 150 t l - lead temperature - c 20 40 60 80 100 % of rated power peak pulse power 8/20s average power figure 3 power derating curve 0 figure 4 overshoot & clamping voltage for sm16lc05 esd test pulse: 25 kilovolt, 1/30ns (waveform) 5 volts per division 0 10 20 30 40 figure 6 return loss - sm16lc12 100 mhz per division 10 db per division -50 db -20 db ref 0 db 20 db figure 5 insertion loss - sm16lc12 100 mhz per division 10 db per division -50 db -20 db ref 0 db 20 db
sm16lc03 thru sm16lc36c 4 05051.r12 4/08 www.protekdevices.com application note the sm16lc & sm16lcxxc series are tvs arrays designed to protect i/o or data lines from the damaging effects of esd, eft and ot her types of surges. this product series provides both unidiretional and bidirectional protection, with a surge capability of 500 watts p pp per line for an 8/20s waveform and esd protection > 40kv. bidirectional common-mode configura tion (figure 1) ideal for rs-485 applications, the sm16lcxxc series provides up to eight (8) lines of protection in a common-mode configuration as depicted in figure 1. this low capacitance series allows the transceiver or telecommunications circuit to operate safely without significa nt signal distortion. circuit connectivity is as follows: ? lines 1 is connected to pin 9. ? line 2 is connected to pin 10. ? line 3 is connected to pin 11. ? line 4 is connected to pin 12. ? line 5 is connected to pin 13. ? line 6 is connected to pin 14. ? line 7 is connected to pin 15. ? line 8 is connected to pin 16. ? pins 1-8 are connected to ground. circuit board la yout recommenda tions circuit board layout is critical for electromagnetic compatibility (emc) protection. the following guidelines are recommended: ? the protection device should be placed near the input terminals or connectors, the device will divert the transient current immediately before it can be coupled into the nearby traces. ? the path length between the tvs device and the protected line should be minimized. ? all conductive loops including power and ground loops should be minimized. ? the transient current return path to ground should be kept as short as possible to reduce parasitic inductance. ? ground planes should be used whenever possible. for multilayer pcbs, use ground vias. figure 1. birectional common-mode protection 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 transceiver d d r r line 1 line 2 line 3 line 4 line 5 line 6 line 7 line 8
5 05051.r12 4/08 www.protekdevices.com sm16lc03 thru sm16lc36c so-16 package outline & dimensions copyright ? prot ek devices 2007 specifications: protek reserves the right to change the electrical and or mechanical characteristics described herein without notice (except jedec). design changes: protek reserves the right to discontinue product lines without notice, and that the final judgement concerning selection and specifications is the buyer?s and that in furnishing engineering and technical assistance, protek assumes no responsibility with respect to the s election or specifications of such products. protek devices 2929 south fair lane, tempe, az 85282 tel: 602-431-8101 fax: 602-431-2288 e-mail: sales@protekdevices.com web site: www.protekdevices.com outline & dimensions: rev 1 - 11/01, 06007 tape & reel/bulk ordering nomenclature 1. surface mount product is taped and reeled in accordance with eia-481. 2. suffix-t7 = 7 inch reel - 1,000 pieces per 16mm tape, i.e. sm16lc05-t7. 3. suffix-t13 = 13 inch reel - 2,500 pieces per 16mm tape, i.e. sm16l;c05-t13 . 4. suffix - lf = lead-free, pure-tin plating, i.e. sm16lc05-lf-t7 . 5. no suffix = product shipped in tubes of 48 pcs per tube. a b c d f g j k p r 9.80 3.80 1.35 0.35 0.40 1.27 bsc 0.19 0.10 5.80 0.25 10.00 4.00 1.75 0.49 1.25 1.27 bsc 0.25 0.25 6.20 0.50 0.386 0.150 0.054 0.014 0.016 0.05 bsc 0.008 0.004 0.229 0.010 0.393 0.157 0.068 0.019 0.049 0.05 bsc 0.009 0.009 0.244 0.019 dim min max min max millimeters inches package dimensions notes 1. - t - = seating plane and datum surface. 2. dimensions ?a? and ?b? are datum. 3. dimensions ?a? and ?b? do not include mold protrusion. 4. maximum mold protrusion is 0.015? (0.380 mm) per side. 5. dimensioning and tolerances per ansi y14.5m, 1982. 6. dimensions are exclusive of mold flash and metal burrs. package outline so-16 mounting pad m -a- -b- p d g -t- k c j r x 45o f 0.010? (0.25 mm) m b m 8 pl 0.010? (0.25 mm) s b m 16 pl t a s 16 9 8 1 0o - 7o 0.050? typ 0.030? 0.005? 0.245? min 0.160? 0.005? 0.045? 0.005?
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