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psms05 thru psms24c standard capacitance tvs array 1 05095.r6 3/08 www.protekdevices.com 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, 8/20 s - level 1(line-gnd) & level 2(line-line) features ? 350 watts peak pulse power per line (tp=8/20 s) ? monolithic design ? available in multiple voltage types ranging from 5v to 24v ? protects 4 lines ? esd protection > 25 kilovolts ? low clamping voltage ? unidirectional & bidirectional configurations ? low leakage current ? rohs compliant mechanical characteristics ? molded jedec sot-23-6 package ? weight 16 milligrams (approximate) ? available in lead-free pure-tin plating(annealed) ? solder reflow temperature: pure-tin - sn, 100: 260-270c ? consult factory for leaded device availability ? flammability rating ul 94v-0 ? 8mm tape and reel per eia standard 481 ? marking: marking code & pin one defined by dot on package 05095 pin configurations sot-23-6 unidirectional bidirectional
psms05 thru psms24c 2 05095.r6 3/08 www.protekdevices.com device characteristics note 1: part numbers with an additional ?c? suffix are bidirectional devices, i.e., psms05 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. part 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) @8/20 s v c @ i pp typical capacitance (see note 4) 0v @ 1 mhz cj pf psms05 psms05c psms12 psms12c psms15 psms15c psms24 psms24c 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 43 43 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 electrical characteristics per line @ 25c unless otherwise specified storage temperature symbol v alue c -55 to 150 units t stg parameter peak pulse power (t p = 8/20 s) - see figure 1 p pp 350 watts maximum ratings @ 25c unless otherwise specified operating temperature t l -55 to 150 c 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 = 8 s t d = 20 s 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 8/20 s waveform 10 100 1,000 10,000 p pp - peak pulse power - watts figure 1 peak pulse power vs pulse time
psms05 thru psms24c 3 05095.r6 3/08 www.protekdevices.com graphs

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! figure 3 power derating curve 5 volts per division figure 4 overshoot & clamping voltage for psms05c esd test pulse: 25 kilovolt, 1/30ns (waveform) 0 10 20 30 40 figure 5 typical reverse voltage vs capacitance for psms05 0 1 2 3 4 5 v r - reverse voltage - volts c - capacitance - pf 0 40 80 120 160
psms05 thru psms24c 4 05095.r6 3/08 www.protekdevices.com application note 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. the psms series are tvs arrays designed to protect i/o or data lines from the damaging effects of esd or eft. this product ser ies provides both unidirectional and bidirectional protection, with a surge capability of 350 watts p pp per line for an 8/20 s waveform and esd protection > 25 kilovolts. unidirectional common-mode configuration (figure 1) the psms series provides up to four (4) lines of protection in a common-mode configuration 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 psmsxxc 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
psms05 thru psms24c 5 05095.r6 3/08 www.protekdevices.com sot-23-6 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 tape & reel/bulk 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., psms-t7 3. suffix - lf = lead-free, pure-tin plating, i.e., psms-lf-t7. outline & dimensions: rev 3 - 3/08, 06013 ( ) * + # , - "" . a b c d e g j k l m 2.80 1.50 0.90 0.30 0.85 0.90 0.09 2.60 0.0 0.30 3.05 1.75 1.30 0.40 1.05 1.45 0.20 3.00 0.15 0.60 0.110 0.059 0.036 0.012 0.033 0.036 0.003 0.102 0.0 0.012 0.120 0.070 0.051 0.016 0.040 0.057 0.008 0.118 0.006 0.024 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 0.028 0.074 0.037 0.094 0.039 1 2 3 4 5 0.70 1.90 0.95 2.40 1.00 dim millimeters inches typical / !
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! 9:(! tape & reel specifications (dimensions in millimeters) de p0 tmax fp2 w 1.50 0.10 1.75 0.10 3.50 0.05 8.00 0.30 4.00 0.10 2.00 0.05 p 4.00 0.10 0.25 a0 b0 k0 reel dia. tape width 178mm (7?) 8mm 3.20 0.10 3.20 0.10 1.65 0.10

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