? 2017 littelfuse, inc. specifcations are subject to change without notice. revised: 10/09/17 description applications the SM712 tvs diode array is designed to protect rs-485 applications with asymmetrical working voltages (-7v to 12v) from damage due to electrostatic discharge (esd), electrical fast transients (eft), and lightning induced surges. the SM712 can absorb repetitive esd strikes above the maximum level specifed in the iec 61000-4-2 international standard without performance degradation and safely dissipate up to 19a of 8/20us induced surge current (iec- 61000-4-5 2nd edition) with very low clamping voltages. features ? rohs compliant and lead-free ? esd, iec 61000-4-2, 30kv contact, 30kv air ? eft, iec 61000-4-4, 50a (5/50ns) ? lightning, iec 61000- 4-5 2nd edition, 19a (t p =8/20s) ? working voltages: -7v to 12v ? low clamping voltage ? low leakage current ? aec-q101 qualifed ? moisture sensitivity level (msl-1) ? rs-485 ? fieldbus ? modbus ? profbus ? dmx512 ? security systems ? automatedt eller machines (atms) ? lighting control - dali ? communication equipments pinout and functional block diagram life support note: not intended for use in life support or life saving applications the products shown herein are not designed for use in life sustaining or life saving applications unless otherwise expressly indicated. rohs pb green SM712 series 600w asymmetrical tvs diode array 1 2 3 7v 12v 7v 12v rs-485 application example ic a b rs -485 port rece ive r SM712 gnd additional information datasheet saes resources tvs diode arrays (spa ? diodes) tvs diode arrays (spa ? diodes) tvs diode arrays (spa ? diodes) general purpose esd protection - SM712
? 2017 littelfuse, inc. specifcations are subject to change without notice. revised: 10/09/17 notes: caution: stresses above those listed in absolute maximum ratings may cause permanent damage to the component. this is a stress only rating and operation of the component at these or any other conditions above those indicated in the operational sections of this specifcation is not implied. absolute maximum ratings symbol parameter value units p pk peak pulse power (t p =8/20s) 600 w i pp peak pulse current (t p =8/20s) 19 a t op operating temperature -40 to 125 c t stor storage temperature -55 to 150 c SM712 electrical characteristics (t op =25oc) parameter symbol test conditions min ty p max units reverse standoff voltage v rwm i r 1a, pin 3 to pin 1 or pin 2 7. 0 v i r 1a, pin 1 or pin 2 to pin 3 12.0 v reverse breakdown voltage v r i r =1ma, pin 3 to pin 1 or pin 2 7. 5 v i r =1ma, pin 1 or pin 2 to pin 3 13.3 v leakage current i leak v r =7v 20 a v r =12v 1 a clamp voltage 1 v c i pp =1a, t p =8/20s, pin 1 or pin 2 to pin 3 19 v i pp =1a, t p =8/20s, pin 3 to pin 1 or pin 2 11 v i pp =19a, t p =8/20s, pin 1 or pin 2 to pin 3 31 v i pp =19a, t p =8/20s, pin 3 to pin 1 or pin 2 19 v dynamic resistance 1 r dyn (v c2 - v c1 ) / (i pp2 - i pp1 ) 0.5 ? esd withstand voltage 1 v esd iec 61000-4-2 (contact discharge) 30 kv iec 61000-4-2 (air discharge) 30 kv diode capacitance 1 c i/o-gnd reverse bias=0v, f=1mhz; pin 1 or pin 2 to pin 3 75 pf capacitance vs. reverse bias 0 10 20 30 40 50 60 70 02468 10 12 80 bias v oltage (v) capacitance (pf) clamping voltage vs. i pp 0 5 10 15 20 25 30 35 02468 10 12 14 16 18 20 cl am p vo lt ag e (v c ) pe ak pu ls e cu rre nt -i pp (a ) pi n 3 to pi n1 or pi n 2 pi n 1 or pi n 2 to pi n 3 notes : 1. parameter is guaranteed by design and/or device characterization. tvs diode arrays (spa ? diodes) tvs diode arrays (spa ? diodes) tvs diode arrays (spa ? diodes) general purpose esd protection - SM712
? 2017 littelfuse, inc. specifcations are subject to change without notice. revised: 10/09/17 pulse waveform 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 110% 0.0 5.0 10.0 15.0 20.0 25.0 30.0 time (s) percent of i pp ti me te mperature t p t l t s(max) t s(min) 25 t p t l t s time to peak temperature preheat p rehea t ramp-up r amp-up ramp-down r amp-d o critical zone t l to t p c ritical zo n e t l to t p refow condition pb C free assembly pre heat - temperature min (t s(min) ) 150c - temperature max (t s(max) ) 200c - time (min to max) (t s ) 60 C 180 secs average ramp up rate (liquidus) temp (t l ) to peak 3c/second max t s(max) to t l - ramp-up rate 3c/second max refow - temperature (t l ) (liquidus) 217c - temperature (t l ) 60 C 150 seconds peak temperature (t p ) 260 +0/-5 c time within 5c of actual peak temperature (t p ) 20 C 40 seconds ramp-down rate 6c/second max time 25c to peak temperature (t p ) 8 minutes max. do not exceed 260c soldering parameters power derating curve 0 10 20 30 40 50 60 70 80 90 100 110 02 55 07 51 00 12 51 50 am bi en t te mp er at ur e - t a ( o c) % of ra ted po we r i pp non-repetitive peak pulse power vs. pulse time pu ls e du ra ti on - t p ( s) p eak pu ls e po we r - p pk (k w) 0.01 0. 1 1 10 0. 11 10 100 1000 tvs diode arrays (spa ? diodes) tvs diode arrays (spa ? diodes) tvs diode arrays (spa ? diodes) general purpose esd protection - SM712
? 2017 littelfuse, inc. specifcations are subject to change without notice. revised: 10/09/17 ordering information part number package marking min. order qty. SM712-02htg sot23-3 712 3000 part numbering system part marking system sm 02 t g series number of channels package t= tape & reel g= green ? tvs diode arrays (spa ? diodes) h: sot23-3 h 712 working voltage 712 p e e1 e 3 1 2 e1 b a1 a d c l1 0 n m 502b package sot23-3 pins 3 jedec to-236 millimeters inches min max min max a 0.89 1. 12 0.035 0.044 a1 0.01 0.1 0.0004 0.004 b 0.3 0.5 0.012 0.020 c 0.08 0.2 0.003 0.008 d 2.8 3.04 0.110 0.120 e 2.1 2.64 0.083 0.104 e1 1. 2 1. 4 0.047 0.055 e 0.95 bsc 0.038 bsc e1 1.90 bsc 0.075 bsc l1 0.54 ref 0.021 ref m C 2.29 C .090 n C 0.95 C 0.038 o C 0.78 C .030typ p C 0.78 C .030typ package dimensions sot23-3 recommended pad layout p e e1 e 3 1 2 e1 b a1 a d c l1 0 n m 502b tvs diode arrays (spa ? diodes) tvs diode arrays (spa ? diodes) tvs diode arrays (spa ? diodes) general purpose esd protection - SM712
? 2017 littelfuse, inc. specifcations are subject to change without notice. revised: 10/09/17 general informa tion 1. 30 00 pieces per reel. 2. order in mul tiples of full reels onl y. 3. meets eia-481 revision "a" specifica tions. cover t ape user direction of feed pin 1 so t 23-3 (8mm pocket pitch) 8.4mm 1 80mm 1 4.4mm 1 3mm 60mm a ccess hole 8mm t ape and reel embossed carrier tape & reel speci?cation sot23-3 symbol millimetres inches min max min max e 1.65 1.85 0.065 0.073 f 3.40 3.60 0.134 0.142 p2 1.90 2.10 0.075 0.083 d 1.40 1.60 0.055 0.063 p0 3.90 4.10 0.154 0.161 w 7.70 8.30 0.303 0.327 p 3.90 4.10 0.154 0.161 a0 3.05 3.25 0.120 0.128 b0 2.67 2.87 0.105 0.113 k0 1. 12 1.32 0.044 0.052 t 0.22 0.24 0.009 0.009 disclaimer notice - information furnished is believed to be accurate and reliable. however, users should independently evaluate the suitability of and test each product selected for their own applications. littelfuse products are not designed for, and may not be used in, all applications. read complete disclaimer notice at www.littelfuse.com/disclaimer-electronics . tvs diode arrays (spa ? diodes) tvs diode arrays (spa ? diodes) tvs diode arrays (spa ? diodes) general purpose esd protection - SM712
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