only one name means protektion? www.protekdevices.com 05172.r7 8/10 page 1 05172 sr70 ult r a low ca p acitance s tee r ing diode a rr ay d e s c r i p tion the sr70 is an ultra low capacitance steering diode array. designed for protecton against electrostatc discharge (esd), electrical fast transients (eft) and secondary lightning threats, this device is ideal for use in high-speed signal interface applicaton such as usb, microprocessor bus and mobile electronics. the sr70 is capable of protectng one line pair or two single lines via the steering of transient voltage to power lines or ground. its ultra low capacitance allows maintenance of signal integrity for high-speed data lines while protectng the circuit ics from the damage of severe transients. an extremely low leakage current makes the sr70 suitable for batery powered devices and poe applicatons. the sr70 is available in the small sot-143 package, which reduces internal lead inductance for low, overshoot voltage during fast front tme transient events like esd. this device meets the iec 61000-4-2 and iec 61000-4-4 requirements. featu r e 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): 24a, 8/20s - level 2(line- gnd) & level 3 (line-line) ? 225 milliwats contnuous power dissipaton ? provides two lines of protecton ? low leakage current < 1.0a ? ultra low capacitance: 3pf typical ? rohs compliant ? reach compliant mechanical cha r acte r i s tic s ? molded jedec sot-143 package ? approximate weight: 9 milligrams ? lead-free pure-tin platng (annealed) ? solder refow temperature: pure-tin - sn, 100: 260-270c ? 8mm tape and reel per eia standard 481 ? flammability ratng ul 94v-0 a pp lication s ? usb interface ports ? poe applicatons ? video ? handheld electronics ? laptops s ot -143 p ackage p in con f igu r ation 3 4 1 2 v n i/o 1 i/o 2 v p
only one name means protektion? www.protekdevices.com 05172.r7 8/10 page 2 05172 sr70 ty p ical device cha r acte r i s tic s m a x i m u m r ating s @ 25c unless o therwise specifed p a r a m ete r s y mb ol value unit s operatng temperature t a -55 to 150 c storage temperature t stg -55 to 150 c forward peak pulse current (tp = 8/20s) i pp 24 a elect r ical cha r acte r i s tic s p e r line @ 25c unless o therwise specifed p a r t nu mb e r device m a r king r e p etitive p eak r eve rs e voltage v rrm volt s m a x i m u m r eve rs e br eakdown voltage i @ 50 a v (br) volt s m a x i m u m r eve rs e leakage cu rr ent @ v rrm i r a m a x i m u m f o r wa r d cla mp ing voltage 8/20 s i pp @ 1 a v f c volt s m a x i m u m f o r wa r d cla mp ing voltage 8/20 s i pp @ 24 a v f c volt s m a x i m u m ca p acitance ( n ote 1) 0 v , 1m h z c j p f sr70 psa 70 85 1 1.5 7 10 note s 1. measured between i/o pins and ground. 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 r e 1 p ul s e wave 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
only one name means protektion? www.protekdevices.com 05172.r7 8/10 page 3 05172 sr70 s ot -143 p ackage in f o rm ation outline di m en s ion s di m m illi m ete rs inche s m in m a x m in m a x a 2.80 3.04 0.110 0.120 b 1.20 1.39 0.047 0.055 c 0.84 1.14 0.033 0.045 d 0.39 0.50 0.015 0.020 f 0.79 0.93 0.031 0.037 g 1.78 2.03 0.070 0.080 j 0.08 0.15 0.003 0.006 k 0.46 0.60 0.018 0.024 l 0.445 0.60 0.0175 0.024 l1 0.40 0.60 0.016 0.024 r 0.72 0.83 0.028 0.033 s 2.11 2.48 0.083 0.098 notes 1. dimensioning and tolerances per ansi y14.m, 1985. 2. controlling dimension: inches. 3. dimensions are exclusive of mold fash and metal burrs. p ad layout di m en s ion s di m m illi m ete rs inche s m in m a x m in m a x a 1.88 2.13 0.074 0.084 b 1.80 2.06 0.071 0.081 c 0.71 0.97 0.028 0.038 d 0.76 1.02 0.030 0.040 e 1.07 1.32 0.042 0.052 f 0.71 0.97 0.028 0.038 note s 1. controlling dimension: inches. a g l b s f d k j c r h l1 a b c d e f
only one name means protektion? www.protekdevices.com 05172.r7 8/10 page 4 05172 sr70 ta p e and r eel sp eci f ication s reel d ia. t a p e w idth a 0 b0 k 0 d e f w p0 p2 p tmax 178mm (7) 8mm 3.10 0.10 2.70 0.10 1.35 0.10 1.50 0.10 1.75 0.10 3.50 0.05 8.00 0.30 4.00 0.10 2.00 0.05 4.00 0.10 0.25 n ote s 1. dimensions are in millimeters. 2. surface mount product is taped and reeled in accordance with eia-481. 3. sufx - t7 = 7 reel - 3,000 pieces per 8mm tape. 4. sufx - t13 = 13 reel - 10,000 pieces per 8mm tape. 5. marking on part - marking code (see page 2) and date code. package outline, pad layout and tape specifcatons per document number 06011.r4 8/10. t op cover tape k0 d p0 p2 10 pitches cumulatve t olerance on t ape. 0.2 a0 b0 p e f w user directon of feed pin 1 t o r de r ing in f o rm ation b a s e p a r t nu mb e r lead fr ee s u ff i x ta p e s u ff i x q ty /r eel r eel s i z e tu b e q ty sr70 -lf -t7 3000 7 n/a sr70 -lf -t13 10,000 13 n/a
only one name means protektion? www.protekdevices.com 05172.r7 8/10 page 5 05172 sr70 co mp any in f o rm ation 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. contact us c orporate h eadquarters 2929 south fair lane tempe, arizona 85282 usa by t elephone 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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