only one name means protektion? www.protekdevices.com 05151.r6 9/10 page 1 05151 ET108 low ca p aci t anc e s teer ing diod e a rr ay de sc r i pt ion the ET108 is a low capacitance steering diode array designed to protect circuit applicatons with a bus voltage of less than 25 volts from the efects of electrostatc discharge (esd). this device is designed for the protecton of four i/o ports. with a low input capacitance per line of less than 6pf, pulse two diode pairs for each line, the ET108 provides both positve and negatve transient protecton. this device meets all the applicable voltage immunity standards, including iec 61000-4-2 (esd), 61000-4-4 (eft) and 61000-4-5 (surge). f e a t u re s ? compatble with iec 61000-4-2 (esd): air - 15kv, contact - 8kv ? compatble with iec 61000-4-4 (eft): 40a - 5/50ns ? compatble with iec 61000-4-5 (surge): 12a, 8/20s - level 1(line- gnd) & level 2(line-line) ? provides 4 lines/ports of protecton ? low leakage current: < 2.0a ? ultra low capacitance: 6pf per diode ? rohs compliant ? reach compliant m e chanical cha r ac ter is t ics ? molded jedec so-8 package ? approximate weight: 70 milligrams ? lead-free pure-tin platng (annealed) ? solder refow temperature: pure-tin - sn, 100: 260-270c ? 12mm tape and reel per eia standard 481 ? flammability ratng ul 94v-0 a pp lica t ions ? ethernet 10/100/1000 base t ? rs-422 and rs-485 ? microcontrollers ? usb interface p in con f igu r a t ion so -8 p ackag e 1 2 4 8 3 5 6 7 gnd ref 1 gnd ref 1 v ref 2 v ref 2 i/o i/o i/o i/o
only one name means protektion? www.protekdevices.com 05151.r6 9/10 page 2 05151 ET108 t y p ical d e vic e cha r ac ter is t ics m a x i m u m r a t ings @ 25c unless o therwise specifed p a r a meter sy mb ol valu e uni t s operatng temperature t a -55 to 150 c storage temperature t stg -55 to 150 c contnuous power dissipaton p pc 730 mw e l e c tr ical cha r ac ter is t ics per lin e @ 25c unless o therwise specifed p a rt nu mber d e vic e m a r king repet i t iv e pe ak re v er s e vol t ag e v rrm vol t s m a x i m u m f o r wa r d vol t ag e 8/20s @ 50 m a v f vol t s m a x i m u m pe ak p uls e f o r wa r d cu rre n t (fig. 1) @ 8/20 s i fm amp s m a x i m u m f o r wa r d vol t ag e 8/20s @ 12 a v f vol t s m a x i m u m re v er s e l e akag e cu rre n t v rrm i r a t y p ical ca p aci t anc e (n ote 1) c j p f ET108 ET108 25 1.2 12 9 2 6 n o te 1. apply a 5v bias between pin 5 (ref 2) to pin 7 (ref 1). measure c j between any i/o pins to pin 7 (ref 1) and divide by 2.
only one name means protektion? www.protekdevices.com 05151.r6 9/10 page 3 05151 ET108 t y p ical d e vic e cha r ac ter is t ics test waveform parameters t f = 8s t d = 20s t f e -t peak value i pp t d = t/(i pp /2) f igu re 1 p uls e wav e f o rm t - time - s 0 5 10 15 20 25 30 i pp - peak pulse c urrent - % of i pp 0 20 40 60 80 100 120 f igu re 2 non- repet i t iv e pe ak p uls e cu rre n t ca p a b ili t y s quare w ave pulse - ms 0.001 0.01 0.1 1 10 100 peak pulse c urrent - a mps 8 0 2 4 6
only one name means protektion? www.protekdevices.com 05151.r6 9/10 page 4 05151 ET108 so -8 p ackag e in f o rm a t ion ou t lin e di me nsions di m m illi meter s inch e s m in m a x m in m a x a 4.80 5.00 0.189 0.196 b 3.80 4.00 0.150 0.157 c 1.35 1.75 0.054 0.068 d 0.35 0.49 0.014 0.019 f 0.40 1.25 0.016 0.049 g 1.27 bsc 0.05 bsc j 0.18 0.25 0.007 0.009 k 0.10 0.25 0.004 0.008 p 5.80 6.20 0.229 0.244 r 0.25 0.50 0.010 0.019 no te s 1. -t- = seatng 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 (0.380mm) per side. 5. dimensioning and tolerances per ansi y14.5m, 1982. 6. dimensions are exclusive of mold fash and metal burrs. p ad layou t di me nsions di m m illi meter s inch e s m in m a x m in m a x a 1.14 1.40 0.045 0.055 b 0.64 0.89 0.025 0.035 c 6.22 - 0.245 - d 3.94 4.17 0.155 0.165 e 1.02 1.27 0.040 0.050 no te s 1. controlling dimension: inches. -a- 8 5 1 4 -b- p g d -t - c k j r x 45 0 - 10 f 4 pl 0.010 (0.25mm) m b + 8 pl 0.010 (0.25mm) b + a t a b c d e m m s s
only one name means protektion? www.protekdevices.com 05151.r6 9/10 page 5 05151 ET108 t a pe and ree l user directon of feed t k0 a0 p d p0 p2 e b0 f w 10 pitches cumulatve tolerance on tape 0.2 pin 1 o r d er ing in f o rm a t ion b as e p a rt nu mber l e ad free su ff i x t a pe su ff i x qt y /ree l ree l si ze t u be qt y ET108 -lf -t7 1,000 7 98 ET108 -lf -t13 2,500 13 98 s pe ci f ica t ions r ee l d ia. ta pe w id t h a 0 b0 k 0 d e f w p0 p2 p tmax 178mm (7) 12mm 6.50 0.10 5.40 0.10 2.00 0.10 1.50 0.10 1.75 0.10 5.50 0.05 12.00 0.30 4.00 0.12 2.00 0.10 4.00 0.10 0.25 n o te s 1. dimensions are in millimeters. 2. surface mount product is taped and reeled in accordance with eia-481. 3. sufx - t7 = 7 reel - 1,000 pieces per 12mm tape. 4. sufx - t13 = 13 reel - 2,500 pieces per 12mm tape. 5. bulk product shipped in tubes of 98 pieces per tube. 6. marking on part - marking code (see page 2), date code, logo and pin one defned by dot on top of package. package outline, pad layout and tape specifcatons per document number 06011.r4 8/10.
only one name means protektion? www.protekdevices.com 05151.r6 9/10 page 6 05151 ET108 co mp any in f o rm a t ion co mp any pr ofile protek devices, based in tempe, arizona usa, is a manufacturer of transient voltage suppression (tvs) products designed specifcally for the protecton of electronic systems from the efects of lightning, electrostatc discharge (esd), nuclear electromagnetc pulse (nemp), in - ductve switching and emi/rfi. with over 25 years of engineering and manufacturing experience, protek designs tvs devices that provide applicaton specifc protecton solutons for all electronic equipment/systems. protek devices analog products division, also manufactures analog interface, control, rf and power management products. copyright ? protek devices 2002 - this literature is subject to all applicable copyright laws and is not for resale in any manner. specifications: protek reserves the right to change the electrical and or mechanical characteristcs described herein without notce. design changes: protek reserves the right to discontnue product lines without notce and that the fnal judgement concerning selecton and specifcatons is the buyers and that in furnishing engineering and technical assistance. protek assumes no responsibility with respect to the selecton or specifcatons of such products. protek makes no warranty, representaton or guarantee regarding the suitability of its products for any partcular purpose, nor does protek assume any liability arising out of the applicaton or use of any product or circuit and specifcally disclaims any and all liability without limitaton special, consequental or incidental damages. life support policy: protek devices products are not authorized for use in life support systems without writen consent from the factory. con t ac t us c orporate h eadquarters 2929 south fair lane tempe, arizona 85282 usa by telephone general: 602-431-8101 sales: 602-414-5109 customer service: 602-414-5114 by fax general: 602-431-2288 by e-mail: sales: sales@protekdevices.com customer service: service@protekdevices.com technical support: support@protekdevices.com w eb www.protekdevices.com www.protekanalog.com
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