? semiconductor components industries, llc, 2006 december, 2006 ? rev. 5 1 publication order number: sl05t1/d sl05t1 series 300 watt, sot?23 low capacitance tvs for high speed line protections this new family of tvs offers tr ansient overvoltage protection with significantly reduced capacitance. the capacitance is lowered by integrating a compensating diode in series. this inte grated solution offers esd protection for high speed interfaces such as communication systems, computers, and computer peripherals. features ? tvs diode in series with a compensating diode offers <5 pf capacitance ? esd protection meeting iec 61000?4?2, 4?4, 4?5 ? peak power rating of 300 w, 8 20 s ? bi?direction protection can be achieved by using two devices ? flammability rating ul 94 v?0 ? pb?free packages are available mechanical characteristics: case: void-free, transfer-molded, thermosetting plastic case finish: corrosion resistant finish, easily solderable maximum case temperature for soldering purposes: 260 c for 10 seconds package designed for optimal automated board assembly small package size for high density applications available in 8 mm tape and reel use the device number to order the 7 inch/3,000 unit reel. replace the ?t1? with ?t3? in the device number to order the 13 inch/10,000 unit reel. sot?23 (to?236) case 318 style 26 21 3 (nc) 1 2 3 device package shipping ? ordering information sl05t1 sot?23 3000/tape & reel sl15t1 sot?23 3000/tape & reel sl24t1 sot?23 3000/tape & reel lxx m marking diagram see specific marking information in the device marking column of the table on page 3 of this data sheet. device marking information sl05t3 sot?23 10,000/tape & reel sl15t3 sot?23 10,000/tape & reel sl24t3 sot?23 10,000/tape & reel http://onsemi.com lxx = device code xx = 05, 15, or 24 m = date code* = pb?free package (note: microdot may be in either location ) *date code orientation and/or overbar may var y depending upon manufacturing location. ?for information on tape and reel specifications, including part orientation and tape sizes, please refer to our tape and reel packaging specificatio ns brochure, brd8011/d. SL24T1G sot?23 (pb?free) 3000/tape & reel sl15t1g sot?23 (pb?free) 3000/tape & reel sl05t1g sot?23 (pb?free) 3000/tape & reel
sl05t1 series http://onsemi.com 2 maximum ratings rating symbol value unit peak power dissipation @ 8x20 usec (note 1) @ t l 25 c p pk 300 w iec 61000?4?2 level 4 contact discharge air discharge iec 61000?4?4 eft iec 61000?4?5 lightning v pp 8 16 40 12 kv kv a a total power dissipation on fr?5 board (note 2) @ t a = 25 c derate above 25 c p d 225 1.8 mw mw/ c thermal resistance junction to ambient r ja 556 c/w total power dissipation on alumina substrate (note 3) @ t a = 25 c derate above 25 c p d 300 2.4 mw mw/ c thermal resistance junction?to?ambient r ja 417 c/w junction and storage temperature range t j , t stg ? 55 to +150 c lead solder temperature ? maximum (10 second duration) t l 260 c stresses exceeding maximum ratings may damage the device. maximum ratings are stress ratings only. functional operation above t he recommended operating conditions is not implied. extended exposure to stresses above the recommended operating conditions may af fect device reliability. 1. non?repetitive current pulse per figure 2 2. fr?5 = 1.0 x 0.75 x 0.62 in. 3. alumina = 0.4 x 0.3 x 0.024 in., 99.5% alumina electrical characteristics (t a = 25 c unless otherwise noted) unidirectional (circuit tied to pins 1 and 3 or 2 and 3) symbol parameter i pp maximum reverse peak pulse current v c clamping voltage @ i pp v rwm working peak reverse voltage i r maximum reverse leakage current @ v rwm v br breakdown voltage @ i t i t test current v br maximum temperature coefficient of v br i f forward current v f forward voltage @ i f z zt maximum zener impedance @ i zt i zk reverse current z zk maximum zener impedance @ i zk uni?directional tvs i pp i f v i i r i t v rwm v c v br v f
sl05t1 series http://onsemi.com 3 electrical characteristics device device marking v rwm i r @ v rwm breakdown voltage (note 4) v c , clamping voltage (note 5) max i pp capacitance v br @ 1 ma (volts) @ 1 a @ 5 a @ v r = 0 v, 1 mhz (pf) (v) ( a) min max (v) (v) (a) typ max sl05 l05 5.0 20 6.0 8.0 9.8 11 17 3.5 5.0 sl15 l15 15 1.0 16.7 18.5 24 30 10 3.5 5.0 sl24 l24 24 1.0 26.7 29 43 55 5.0 3.5 5.0 4. v br measured at pulse test current of 1 ma at an ambient temperature of 25 c 5. surge current waveform per figure 2 typical characteristics 0.1 10 10 figure 1. maximum peak power rating 1 pulse width ( s) 100 1000 1 0.1 0.01 figure 2. 8 20 s pulse waveform p pk , peak power (kw) 100 90 80 70 60 50 40 30 20 10 0 0204060 t, time ( s) % of peak pulse current t p t r pulse width (t p ) is defined as that point where the peak current decay = 8 s peak value i rsm @ 8 s half value i rsm /2 @ 20 s 8 0 figure 3. typical junction capacitance ?55 25 150 10 1 0.1 0.01 figure 4. typical leakage over temperature temperature ( c) @ 50% v rwm 4 3.5 3 2 1.5 0.5 0 c, capacitance (pf), 1 mhz freq. 2.5 1 @ zero bias @ v rwm sl05 sl15 sl24 leakage ( a) sl05t1
sl05t1 series http://onsemi.com 4 applications background this new family of tvs devices (sl05t1 series) are designed to protect sensitive electronics such as communications systems, computers, and computer peripherals against damage due to esd conditions or transient voltage conditions. because of their low capacitance value (less than 5 pf), they can be used in high speed i/o data lines. low capacitance is achieved by integrating a compensating diode in series with the tvs which is basically based in the below theoretical principle: ? capacitance in parallel: ct = c1+c2+....+cn ? capacitance in series: 1/ct = (1/c1)+(1/c2)+....+(1/cn) the figure 5 shows the integrated solution of the sl05t1 series device: figure 5. compensating diode tvs in the case that an over?voltage condition occurs in the i/o line protected by the sl05t1 series device, the tvs is reversed?biased while the compensation diode is forward?biased so the resulting current due to the transient voltage is drained to ground. if protection in both polarities is required, an additional device is connected in inverse?parallel with reference to the first one, the figure 6 illustrates the inverse?parallel connection for bi?directional or unidirectional lines: figure 6. 3 2 1 3 2 1 an alternative solution to protect unidirectional lines, is to connect a fast switching steering diode in parallel with the sl05t1 series device. when the steering diode is forward?biased, the tvs will avalanche and conduct in reverse direction. it is important to note that by adding a steering diode, the ef fective capacitance in the circuit will be increased, therefore the impact of adding a steering diode must be taken in consideration to establish whether the incremental capa citance will affect the circuit functionality or not. the figure 7 shows the connection between the steering diode and the sl05t1 series device: figure 7. steering diode sl05t1 device another typical application in which the sl05t1 series device can be utilized, is to protect multiple i/o lines. the protection in each of the i/o lines is achieved by connecting two devices in inve rse?parallel. the figure 8 illustrates how multiple i/o line protection is achieved: figure 8. output input for optimizing the protection, it is recommended to use ground pl anes and short path lengths to minimize the pcb?s ground induc tance.
sl05t1 series http://onsemi.com 5 package dimensions sot?23 (to?236) case 318?08 issue an d a1 3 12 notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: inch. 3. maximum lead thickness includes lead finish thickness. minimum lead thickness is the minimum thickness of base material. 4. 318?01 thru ?07 and ?09 obsolete, new standard 318?08. mm inches scale 10:1 0.8 0.031 0.9 0.035 0.95 0.037 0.95 0.037 2.0 0.079 soldering footprint* view c l 0.25 l1 e e e b a see view c dim a min nom max min millimeters 0.89 1.00 1.11 0.035 inches a1 0.01 0.06 0.10 0.001 b 0.37 0.44 0.50 0.015 c 0.09 0.13 0.18 0.003 d 2.80 2.90 3.04 0.110 e 1.20 1.30 1.40 0.047 e 1.78 1.90 2.04 0.070 l 0.10 0.20 0.30 0.004 0.040 0.044 0.002 0.004 0.018 0.020 0.005 0.007 0.114 0.120 0.051 0.055 0.075 0.081 0.008 0.012 nom max l1 h style 26: pin 1. cathode 2. anode 3. no connection 2.10 2.40 2.64 0.083 0.094 0.104 h e 0.35 0.54 0.69 0.014 0.021 0.029 c *for additional information on our pb?free strategy and soldering details, please download the on semiconductor soldering and mounting techniques reference manual, solderrm/d. on semiconductor and are registered trademarks of semiconductor components industries, llc (scillc). scillc reserves the right to mak e changes without further notice to any products herein. scillc makes no warranty, representation or guarantee regarding the suitability of its products for an y particular purpose, nor does scillc assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including wi thout limitation special, consequential or incidental damages. ?typical? parameters which may be provided in scillc data sheets and/or specifications can and do vary in different application s and actual performance may vary over time. all operating parameters, including ?typicals? must be validated for each customer application by customer?s technical experts. scillc does not convey any license under its patent rights nor the rights of others. scillc products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the scillc product could create a sit uation where personal injury or death may occur. should buyer purchase or use scillc products for any such unintended or unauthorized application, buyer shall indemnify and hold scillc and its of ficers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, direct ly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that scillc was negligent regarding the design or manufacture of the part. scillc is an equal opportunity/affirmative action employer. this literature is subject to all applicable copyright laws and is not for resale in any manner. publication ordering information n. american technical support : 800?282?9855 toll free usa/canada europe, middle east and africa technical support: phone: 421 33 790 2910 japan customer focus center phone: 81?3?5773?3850 sl05t1/d thermal clad is a registered trademark of the bergquist company. literature fulfillment : literature distribution center for on semiconductor p.o. box 5163, denver, colorado 80217 usa phone : 303?675?2175 or 800?344?3860 toll free usa/canada fax : 303?675?2176 or 800?344?3867 toll free usa/canada email : orderlit@onsemi.com on semiconductor website : www.onsemi.com order literature : http://www.onsemi.com/orderlit for additional information, please contact your local sales representative
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