1/8 smtpaxxx ? n bidirectional crowbar protection n voltage range from 62v to 270v n low capacitance from 15pf to 30pf typ.@ 50v n low leakage current: i r = 2a max. n holding current: i h = 150 ma min. n repetitive peak pulse current: i pp = 50 a (10/1000 s) features smb (jedec do-214aa) the smtpaxxx series has been designed to protect telecommunication equipment against lightning and transient induced by ac power lines. the package / die size ratio has been optimized by using the smb package. description schematic diagram telecom equipment protection: trisil? november 2002 - ed: 4b telecommunication equipment such as: n analog and digital line cards (xdsl, t1/e1, isdn...). n terminals (phone, fax, modem...) and central office equipment. main applications trisils are not subject to ageing and provide a fail safe mode in short circuit for a better protection. trisils are used to help equipment to meet various standards such as ul1950, iec950 / csa c22.2, ul1459 and fcc part 68. trisils have ul94 v0 resin approved. smb package is jedec registred. (trisils are ul 497b approved - file: e136224). benefits
smtpaxxx 2/8 standard peak surge voltage (v) voltage waveform (s) required peak current (a) current waveform (s) minimum serial resistor to meet standard ( w ) gr-1089 core first level 2500 1000 2/10 10/1000 500 100 2/10 10/1000 12 10 gr-1089 core second level 5000 2/10 500 2/10 24 gr-1089 core intra-building 1500 2/10 100 2/10 0 itu-t-k20 / k21 6000 1500 10/700 150 37.5 5/310 53 0 itu-t-k20 (iec61000-4-2) 6000 8000 1/60 ns esd contact discharge esd air discharge 0 0 vde0433 4000 2000 10/700 100 50 5/310 21.5 0 vde0878 4000 2000 1.2/50 100 50 1/20 0 0 iec61000-4-5 4000 4000 10/700 1.2/50 100 100 5/310 8/20 21.5 0 fcc part 68, lightning surge type a 1500 800 10/160 10/560 200 100 10/160 10/560 12.5 6.5 fcc part 68, lightning surge type b 1000 9/720 25 5/320 0 in compliances with the following standards symbol parameter v rm stand-off voltage i rm leakage current at v rm v r continuous reverse voltage v br breakdown voltage v bo breakover voltage i h holding current i bo breakover current i pp peak pulse current c capacitance electrical characteristics (t amb = 25c) symbol parameter value unit r th (j-a) junction to ambient with recommended footprint 100 c/w r th (j-l) junction to leads 20 c/w thermal resistances
smtpaxxx 3/8 symbol parameter value unit i pp repetitive peak pulse current: 10/1000 s 8/20 s 10/560 s 5/310 s 10/160 s 1/20 s 2/10 s 50 100 55 65 75 100 150 a i fs fail safe mode: maximum current 8/20 s 2.5 ka i tsm non repetitive surge peak on-state current (sinusoidal) t = 20ms t = 16.6ms t = 0.2s t=2s 30 32 17 9 a i2t i2t value for fusing t = 16.6ms t = 20ms 8.5 9 a2s t l maximum lead temperature for soldering during 10 s. 260 c t stg t j storage temperature range maximum junction temperature -55to+150 150 c c absolute ratings (t amb = 25c) tr: rise time (s) tp: pulse duration time (s) ex.: pulse waveform 10/1000s tr = 10s tp = 1000s repetitive peak pulse current 100 50 %i pp t t r p 0 t
smtpaxxx 4/8 type i rm @v rm max i r @v r max note 1 dynamic v bo @i bo max note 2 static v bo @i bo max note 3 i h min note 4 c typ. note 5 c typ. note 6 a v a v v ma v ma ma pf pf smtpa62 2 56 50 62 85 800 82 800 150 30 50 smtpa68 61 68 93 90 150 30 45 smtpa100 90 100 135 133 150 20 40 smtpa120 108 120 160 160 150 20 40 smtpa130 117 130 173 173 150 20 35 smtpa180 162 180 235 240 150 15 30 smtpa200 180 200 262 267 150 15 30 smtpa220 198 220 285 293 150 15 30 SMTPA240 216 240 300 320 150 15 30 smtpa270 243 270 350 360 150 15 30 note 1: i r measured at v r guarantee v brmin 3 v r note 2: see functional breakover voltage test circuit 1. note 3: see test circuit 2. note 4: see functional holding current test circuit 3. note 5: v r = 50v bias,vrms = 1v , f = 1mhz. note 6: v r = 2v bias, vrms = 1v , f = 1mhz electrical parameters (tamb = 25c) 40 f=50hz 35 30 25 20 15 10 5 0 1e-2 1e-1 1e+0 1e+1 1e+2 1e+3 t(s) i (a) tsm fig. 1: non repetitive surge peak on-state current versus overload duration (tj initial = 25c) 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 1 2 5 10 20 50 v (v) t i (a) t tj=25c fig. 2: on-state voltage versus on-state current (typical values).
smtpaxxx 5/8 -40 -20 0 20 40 60 80 100 120 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 t (c) j i [t ] / i [t =25c] hj hj fig. 3: relative variation of holding current versus junction temperature. -40 -20 0 20 40 60 80 100 120 0.94 0.96 0.98 1.00 1.02 1.04 1.06 1.08 v [t ] / v [t =25c] bo j bo j t (c) j fig. 4: relative variation of breakover voltage ver- sus junction temperature. 25 50 75 100 125 1 10 100 1000 2000 i [t ] / i [t =25c] rm j rm j v=v rrm t (c) j fig. 5: relative variation of leakage current versus junction temperature (typical values). z (c/w) th(j-a) t (s) p 1e+2 1e+1 1e+0 1e-1 1e-3 1e-2 1e-1 1e+0 1e+1 1e+2 5e+2 zth(j-a) fig. 6: relative variation of thermal impedance versus pulse duration. 1 2 5 10 20 50 100 300 0.0 0.5 1.0 1.5 2.0 2.5 v (v) r c[v ] / c[v =50v] rr tj=25c f=1mhz vrms=1v fig. 7: relative variation of junction capacitance versus reverse voltage applied (typical values).
smtpaxxx 6/8 100 v / s, di/dt < 10 a / s, ipp = 50a 1 kv / s, di/dt < 10 a / s, ipp = 10 a u u 10 f 2 w 45 w 66 w 470 w 83 w 0.36 nf 46 h 60 f 26 h 12 w 250 w 46 h 47 w key tek system 2 generator with pn246i module key tek system 2 generator with pn246i module test circuit 1 for dynamic i bo and v bo parameters test circuit 2 for i bo and v bo parameters. 220v 50hz 1/4 r1 = 140 w r2 = 240 w k ton = 20ms ibo measurement vbo measurement vout dut test procedure : n pulse test duration (tp = 20ms): - for bidirectional devices = switch k is closed - for unidirectional devices = switch k is open. n v out selection - device with v bo < 200 volt -v out = 250 v rms ,r 1 = 140 w . - device with v bo 3 200 volt -v out = 480 v rms ,r 2 = 240 w .
smtpaxxx 7/8 test circuit 3 for i h parameters. r v bat = - 48 v surge generator d.u.t this is a go-no go test which allows to confirm the holding current (i h ) level in a functional test circuit. test procedure : - adjust the current level at the i h value by short circuiting the d.u.t. - fire the d.u.t. with a surge current : i pp = 10a, 10/1000 m s. - the d.u.t. will come back to the off-state within 50 ms max. package mechanical data smb (jedec do-214aa) ref. dimensions millimeters inches min. max. min. max. a1 1.90 2.45 0.075 0.096 a2 0.05 0.20 0.002 0.008 b 1.95 2.20 0.077 0.087 c 0.15 0.41 0.006 0.016 e 5.10 5.60 0.201 0.220 e1 4.05 4.60 0.159 0.181 d 3.30 3.95 0.130 0.156 l 0.75 1.60 0.030 0.063 1.52 2.75 2.3 1.52 (0.09) (0.059) (0.108) (0.059) foot print in millimeters (inches) e c l e1 d a1 a2 b
smtpaxxx 8/8 sm tpa xx surface mount trisil? protection: i = 50a pp voltage order code part number marking package weight base qty delivery mode smtpa62 u01 smb 0.11 g 5000 tape & reel smtpa68 u05 smtpa100 u13 smtpa120 u17 smtpa130 u19 smtpa180 u25 smtpa200 u27 smtpa220 u31 SMTPA240 u35 smtpa270 u39 ordering information information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specifications mentioned in this publication are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics products are not authorized for use as critical components in life support devices or systems without express written ap- proval of stmicroelectronics. the st logo is a registered trademark of stmicroelectronics ? 2002 stmicroelectronics - printed in italy - all rights reserved. stmicroelectronics group of companies australia - brazil - canada - china - finland - france - germany hong kong - india - israel - italy - japan - malaysia - malta - morocco - singapore spain - sweden - switzerland - united kingdom - united states. http://www.st.com
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