sr2.8 & sr3.3 steering diode/tvs array combo 1 05167.r5 6/06 www.protekdevices.com applications ? ethernet - 10/100/1000 base t ? firewire & usb ? handheld electronics ? video/graphic cards ? wan/lan equipment iec compatibility (en61000-4) ? 61000-4-2 (esd): air - 15kv, contact - 8kv ? 61000-4-4 (eft): 40a - 5/50ns ? 61000-4-5 (surge): 24a, 8/20s - level 2(line-gnd) & level 3(line-line) features ? 300 watts peak power per line (tp = 8/20s) ? esd protection > 25 kilovolts ? low operating voltage: 2.8v & 3.3v ? provides two (2) lines of protection ? low leakage current < 1.0a ? ultra low capacitance: 4.5pf typical ? rohs compliant in lead-free versions mechanical characteristics ? molded jedec sot-143 ? weight 9 milligrams (approximate) ? available in tin-lead or lead-free pure-tin plating(annealed) ? solder reflow temperature: tin-lead - sn/pb, 85/15: 240-245c pure-tin - sn, 100: 260-270c ? flammability rating ul 94v-0 ? 8mm tape and reel per eia standard 481 ? marking: marking code 05167 sot-143 pin configuration gnd i/o ref i/o
sr2.8 & sr3.3 2 05167.r5 6/06 www.protekdevices.com device characteristics 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 = 8s t d = 20s t f peak value i pp e -t t d = t i pp /2 figure 2 pulse wave form 0.01 1 10 100 1,000 10,000 t d - pulse duration - s 10 100 1,000 10,000 p pp - peak pulse current - watts figure 1 peak pulse power vs pulse time 300w, 8/20s waveform storage temperature symbol v alue 300 watts c -55c to 150c units t stg p pp parameter peak pulse power (tp = 8/20s) - see figure 1 operating temperature t j -55c to 150c c maximum ratings @ 25c unless otherwise specified forward surge rating (1/20s @ 25c, i f = 10ma) v f 1.0 volts peak pulse current (tp = 8/20s) amps 30 i pp note 1: from pin 4 to 1. note 2: from pin 1 to 3, 1 to 2, 3 to 4, 2 to 4. part number device marking minimum snap-back voltage @ 50ma v (sb) volts minimum breakdown voltage (see note 1) @ 2a v (br) volts maximum clamping voltage (see fig. 2) (see note 1) @ i p = 1a v c volts typical capacitance (see note 2) @ 0v, 1mhz c j(sd) pf sr2.8 sr3.3 2a 3a 2.8 3.3 3.0 3.5 5.0 7.0 4.5 4.5 maximum clamping voltage (see fig. 2) (see note 1) @ 8/20s v c volts 8.5v @ 5a 15v @ 10a rated stand-off voltage (see note 1) v wm volts 2.8 3.3 electrical characteristics per line @ 25c unless otherwise specified 1.0 1.0 maximum leakage current (see note 1) @ v wm i d a
sr2.8 & sr3.3 3 05167.r5 6/06 www.protekdevices.com sot-143 package outline & dimensions tape & reel 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., sr2.8-t7. 3. suffix-t13 = 13 inch reel - 10,000 pieces per 8mm tape, i.e., sr2.8-t13. 4. suffix - lf = lead-free, pure-tin plating, i.e., sr2.8-lf-t7. a b c d f g h j k l r s 2.80 1.20 0.84 0.39 0.79 1.78 0.013 0.08 0.46 0.445 0.72 2.11 3.04 1.39 1.14 0.50 0.93 2.03 0.10 0.15 0.60 0.60 0.83 2.48 0.110 0.047 0.033 0.015 0.031 0.070 0.0005 0.003 0.018 0.0175 0.028 0.083 0.120 0.055 0.045 0.020 0.037 0.080 0.004 0.006 0.024 0.024 0.033 0.098 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-143 mounting pad
0.112 0.079 0.071 0.075 0.041 0.108 0.047 0.031 0.033 0.033 0.033 1 2 3 4 5 6 7 8 9 10 11 2.85 2.00 1.80 1.90 1.05 2.75 1.20 0.80 0.85 0.85 0.85 dim millimeters inches typical 1 2 4 3 5 6 79 8 10 11 ! !""#$# % & ' "() tape & reel specifications (dimensions in millimeters) d e 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 3.10 0.10 2.70 0.10 1.35 0.10 copyright ? prot ek devices 2003 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. outline & dimensions: rev 2 - 6/06, 06011 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
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