psrda3.3-4 thru psrda15-4 steering diode/ tvs array combo 1 05096.r8 3/07 www.protekdevices.com applications ? ethernet - 10/100 base t ? computer i/o ports - scsi, firewire & usb ? set-top box protection ? video card 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 ? 500 watts peak pulse power per line (tp=8/20s) ? unidirectional configuration ? available in 4 voltage types: 3.3v to 15v ? protects up to four (4) i/o ports ? esd protection > 40 kilovolts ? low capacitance: 15pf ? rohs compliant mechanical characteristics ? molded jedec so-8 ? weight 70 milligrams (approximate) ? available in lead-free pure-tin plating(annealed) ? solder reflow temperature: pure-tin - sn, 100: 260-270c ? consult factory for leaded device availability ? flammability rating ul 94v-0 ? 12mm tape and reel per eia standard 481 ? marking: marking code, logo, date code & pin one defined by dot on top of package 05096 pin configuration so-8 gnd i/o 4 i/o 3 gnd i/o 1 +v ref +v ref i/o 2
psrda3.3-4 thru psrda15-4 2 05096.r8 3/07 www.protekdevices.com device characteristics 0.1 1 10 100 1,000 10,00 0 t d - pulse duration - s 500w 8/20s waveform 10 100 1,000 10,000 p pp - peak pulse power - watts figure 1 peak pulse power vs pulse time 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 electrical characteristics per line @ 25c unless otherwise specified maximum ratings @ 25c unless otherwise specified operating temperature symbol value -55 to 150 c c -55 to 150 units t l t stg parameter storage temperature peak pulse power (t p = 8/20s) - see figure 1 p pp 500 watts maximum forward voltage @ 100ma (see note 1) volts 1.1 v f note 1: measured between pins 8 or 5 to 1, 2, 3, 4, 6 and 7. note 1: capacitance measured at v wm = v cc connected between i/o pins to pin 8 and 5 (gnd). v r = v wm @ 1mhz. as shown in figure 5, ref1 is connected to ground, ref2 is connected to +v cc , and input applies to v cc = 5v, v sign = mv, f = 1 mhz. part number device marking minimum breakdown voltage @ 1ma v (br) volts maximum clamping voltage (see fig. 2) @ i p = 1a v c volts maximum clamping voltage (see fig. 2) @8/20s v c @ i pp maximum capacitance (see note 1) (see figure 5) @0v, 1 mhz c j(sd) pf psrda3.3-4 psrda05-4 psrda12-4 psrda15-4 pra prb prd pre 4.0 6.0 13.3 16.7 6.5 9.8 19.0 24.0 10.9v @ 43.0a 13.5v @ 42.0a 25.9v @ 21.0a 30.0v @ 17.0a 15 15 15 15 maximum leakage current @v wm i d a 125 20 1 1 rated stand-off voltage v wm volts 3.3 5.0 12.0 15.0
psrda3.3-4 thru psrda15-4 3 05096.r8 3/07 www.protekdevices.com graphs figure 8 return loss - psrda12-4 100 mhz per division 10 db per division -50 db -20 db ref 0 db 20 db figure 7 insertion loss - psrda12-4 100 mhz per division 10 db per division -50 db -20 db ref 0 db 20 db 0 25 50 75 100 125 150 t l - lead temperature - c 20 40 60 80 100 % of rated power peak pulse power 8/20s average power figure 3 power derating curve 0 figure 4 overshoot & clamping voltage for psrda05-4 esd test pulse: 8 kilovolt, 1/30ns (waveshape) 5 volts per division 0 10 20 30 40 0 5 10 15 20 25 30 i pp - peak pulse current - amps v c - clamping voltage - volts 0 4 8 12 figure 6 typical clamping voltage vs peak pulse current for psrda05-4 figure 5 input capacitance circuit g ref2 +v cc ref1 v r i/o
psrda3.3-4 thru psrda15-4 4 05096.r8 3/07 www.protekdevices.com application note the psrdaxx-4 series are low capacitance, unidirectional tvs arrays that are designed to protect i/o or high speed data lines f rom the damaging effects of esd or eft. this product series has a surge capability of 500 watts p pp per line for an 8/20s waveshape and offers esd protection > 40kv. differential-mode configuration (figure 1) ideal for use in usb applications, the psrdaxx-4 series provides up to four (4) lines of protection in a differential-mode configuration as depicted in figure 1. circuit connectivity is as follows: ? pins 1, 4, 6 and 7 are connected to the data lines. ? pins 5 and 8 are connected to ground. ? pins 2 and 3 are connected to the databus. differential-mode configuration (figure 2) the psrdaxx-4 series also provides up to four (4) lines of protection in a differential-mode configuration as depicted in figure 2 for t1/e1 applications. circuit connectivity is as follows: ? pins 1, 4, 6 and 7 are connected to the data lines. ? pins 5 and 8 are connected to ground. ? pins 2 and 3 are connected to the databus. circuit board la yout recommenda tions circuit board layout is critical for electromagnetic compat- ibility (emc) protection. the following guidelines are recommended: ? the protection device should be placed near the input terminals or connectors, the device will divert the transient current immediately before it can be coupled into the nearby traces. ? the path length between the tvs device and the protected line should be minimized. ? all conductive loops including power and ground loops should be minimized. ? the transient current return path to ground should be kept as short as possible to reduce parasitic induc- tance. ? ground planes should be used whenever possible. for multilayer pcbs, use ground vias. figure 2. typical differential-mode t1/e1 protection 4 1 2 8 7 6 5 3 ptc ptc ptc ptc plc01- 6 plc01- 6 gnd gnd tring ttip rtip rring t1/e1 transceiver 4 1 2 8 7 6 5 3 figure 1. typical differential-mode usb protection usb port v bus gnd d+ d- usb port v bus gnd d+ d- usb controller v bus gnd gnd
psrda3.3-4 thru psrda15-4 5 05096.r8 3/07 www.protekdevices.com so-8 package outline & dimensions copyright ? prot ek devices 2007 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. 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 tape & reel/bulk ordering nomenclature 1. surface mount product is taped and reeled in accordance with eia-481. 2. suffix-t7 = 7 inch reel - 1,000 pieces per 12mm tape, i.e. PSRDA05-4-T7. 3. suffix-t13 = 13 inch reel - 2,500 pieces per 12mm tape, i.e., psrda05-4-t13. 4. suffix - lf = lead-free, pure-tin plating, i.e., psrda05-4-lf-t7. 5. no suffix = product shipped in tubes of 98 pcs per tube. a b c d f g j k p r 4.80 3.80 1.35 0.35 0.40 1.27 bsc 0.18 0.10 5.80 0.25 5.00 4.00 1.75 0.49 1.250 1.27 bsc 0.25 0.25 6.20 0.50 0.189 0.150 0.054 0.014 0.016 0.05 bsc 0.007 0.004 0.229 0.010 0.196 0.157 0.068 0.019 0.049 0.05 bsc 0.009 0.008 0.244 0.019 dim min max min max millimeters inches package dimensions notes 1. - t - = seating 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? (0.380 mm) per side. 5. dimensioning and tolerances per ansi y14.5m, 1982. 6. dimensions are exclusive of mold flash and metal burrs.
package outline so-8 !" # mounting pad outline & dimensions: rev 1 - 11/01, 06009
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