sms05 thru sms24c 1 05132.r4 3/05 www .protekde vices.com standard capacitance tvs arra y only one name means protektion? applications ? ethernet - 10 base t ? cellular phones ? handheld electronics ? firewire & usb interfaces 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-gnd) & level 2(line-line) features ? 350 watts peak pulse power per line (tp=8/20s) ? monolithic design ? available in multiple voltage types ranging from 5v to 24v ? protect 4 lines ? esd protection > 25 kilovolts ? low clamping voltage ? unidirectional & bidirectional configurations ? low leakage current ? rohs compliant in lead-free versions mechanical characteristics ? molded jedec sot-23-6 package ? weight 16 milligrams (approximate) ? available in tin-lead or lead-free pure-tin plating(annealed) ? solder reflow temperature: tin-lead - sn/pb, 85/15: 240-245c pure-tin - sn, 100: 260-270c ? flammability rating ul 94v-0 ? 8mm tape and reel per eia standard 481 ? marking: marking code & pin one defined by dot on package 05132 pin configura tions sot-23-6 unidirectional bidirectional
2 www .protekde vices.com 05132.r4 3/05 sms05 thru sms24c device characteristics maximum ratings @ 25c unless otherwise specified operating temperature symbol value -55 c to 150 cc c -55 c to 150 c units t j t stg parameter storage temperature peak pulse power (t p = 8/20s) - see figure 1 p pp 350 watts note 1: part numbers with an additional ?c? suffix are bidirectional devices, i.e., sms05 c. note 2: unidirectional only: test between pin 1 to 2 or 5, 4 to 2 or 5, 6 to 2 or 5, 3 to 2 or 5. note 3: bidirectional only: test between pin 5 to 1 or 3 or 4 or 6. electrical characteristics apply in both directions. note 4: unidirectional only: capacitance measured between pins 1, 3, 4, 6, to 2. electrical characteristics per line @ 25c unless otherwise specified pa rt number (see notes 1-3) device marking minimum breakdown voltage @ 1ma v (br) 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 typical capacitance (see note 4) @0v, 1 mhz c j pf sms05 sms05c sms12 sms12c sms15 sms15c sms24 sms24c prh prl pri prm prj prn prk pro 6.0 6.0 13.3 13.3 16.7 16.7 26.7 26.7 9.8 9.8 19 19 24 24 40 40 21.0v @ 17.0a 21.0v @ 17.0a 29.2v @ 12.0a 29.2v @ 12.0a 34.6v @ 10.0a 34.6v @ 10.0a 58.3v @ 6.0a 58.3v @ 6.0a 150 150 80 80 50 50 40 40 maximum leakage current @v wm i d a 20 20 1 1 1 1 1 1 rated stand-off voltage v wm volts 5.0 5.0 12.0 12.0 15.0 15.0 24.0 24.0 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 350w 8/20s waveform 10 100 1,000 10,000 p pp - peak pulse power - watts figure 1 peak pulse power vs pulse time
3 www .protekde vices.com 05132.r4 3/05 sms05 thru sms24c graphs 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 5 volts per division figure 4 overshoot & clamping voltage for sms05c esd test pulse: 25 kilovolt, 1/30ns (waveform) 0 10 20 30 40 figure 5 typical reverse voltage vs capacitance for sms05 0 1 2 3 4 5 v r - reverse voltage - volts c - capacitance - pf 0 40 80 120 160
4 www .protekde vices.com 05132.r4 3/05 sms05 thru sms24c application note circuit bo ard la y out recommend a 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. the sms series are tvs arrays designed to protect i/o or data lines from the damaging effects of esd or eft. this product seri es provides both unidirectional and bidirectional protection, with a surge capability of 350 watts p pp per line for an 8/20s waveform and esd protection > 25 kilovolts. unidirectional common-mode configuration (figure 1) the sms series provides up to four (4) lines of protection in a common-mode configura- tion as depicted in figure 1. circuit connectivity is as follows: ? line 1 is connected to pin 1. ? line 2 is connected to pin 3. ? line 3 is connected to pin 4. ? line 4 is connected to pin 6. ? pin 5 is connected to ground. ? pin 2 is not connected. bidirectional common-mode configuration (figure 2) the smsxxc series provides up to four (4) lines of protection in a common-mode configuration as depicted in figure 2. circuit connectivity is as follows: ? line 1 is connected to pin 1. ? line 2 is connected to pin 3. ? line 3 is connected to pin 4. ? line 4 is connected to pin 5. ? pin 6 is connected to ground. ? pin 2 is not connected. figure 1 - unidirectional configuration common-mode i/o port protection 3 1 5 6 2 4 line 1 line 2 line 3 line 4 i/o port figure 2 - bidirectional configuration common-mode i/o port protection 3 1 5 6 2 4 line 1 line 2 line 3 line 4 i/o port
5 www .protekde vices.com 05132.r4 3/05 sms05 thru sms24c copyright ? protek devices 2005 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 selection or specifications of such products. package outline & dimensions 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 .protekde vices .com tape & reel ordering nomenclature 1. surface mount product is taped and reeled in accordance with eia-481. 2. suffix-t7 = 7 inch reel - 3,000 pieces per 8mm tape, i.e., sms05-t7. 3. suffix-t13 = 13 inch reel - 10,000 pieces per 8mm tape, i.e., sms05-t13. 4. suffix - lf = lead-free, pure-tin plating, i.e., sms05-lf-t7. outline & dimensions: rev 1 - 11/01, 06013 e d a l f 54 3 6 b g v j c k 0 o - 10 o 1 2 m j a b c d e f g j k l m 2.80 1.50 0.90 0.35 0.85 1.70 0.90 0.090 2.60 0.20 typ 0.35 3.05 1.75 1.30 0.50 1.05 2.10 1.45 0.20 3.00 0.20 typ 0.55 0.110 0.059 0.036 0.014 0.033 0.067 0.036 0.0035 0.102 0.007 typ 0.014 0.120 0.070 0.051 0.020 0.040 0.083 0.057 0.008 0.118 0.007 typ 0.022 dim min max min max millimeters inches package dimensions notes 1. dimensioning and tolerances per ansi y14.5m, 1985. 2. controlling dimension: inches 3. dimensions are exclusive of mold flash and metal burrs. package outline sot-23-6 mounting pad 0.094? (2.40mm) 0.028? (0.70mm) 0.037? (0.95mm) 0.074? (1.90mm) 0.039? (1.00mm)
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