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  2381 661 97.../ptctz..r....te vishay bccomponents smd ptc thermistors for overload protection www.vishay.com for technical questions, contact: nlr@vishay.com document number: 29068 38 revision: 27-oct-09 notes (1) customized products ar e available on request (2) coated and/or reinforced ty pes are available on request features ? ideal for pick-and-pla ce circuit assembly ? low mounting height ? suitable for reflow soldering ? small ceramic diameter for faster response ? low heat transfer to substrate ? flat terminations for stable positioning and good solderability ? compliant to rohs directive 2002/95/ec and in accordance to weee 2002/96/ec applications over-temperature/over-load protection: ? telecom - central office switching (c.o.) - subscriber terminal equipment (t.e.) - set top box - modems - cable tv communications ? general industry and automotive - low power supplies overload protection - data bus protection description the component consists of a high-performance ptc ceramic disc mounted in a lead-frame for direct soldering onto a printed-circuit board (pcb) or substrate. the ceramic is soldered to the leadframe by a local reflow process, during which the solder layer is melted to the metallized ceramic surface using a low residue flux. marking ? all smd ptcs are marked with t he last 3-digits of the type number (xxx) and a date code (yyww) note (3) these types pass itu-k20-21-45 edition 2003 te lecommunication protection recommendation quick reference data description value standard types (1) (2) telecom types (1) (2) nominal r25 2 to 500 10 to 70 resistance tolerance 10 %; 15 %; 20 % maximum overload current (voltage dependent) 2 a to 10 a non-trip current 50 ma to 500 ma at 25 c 50 ma to 100 ma at 70 c maximum voltage 16 v rms to 400 v rms 220 v rms to 600 v rms response time at 25 c and 20 w overload power < 1 s matching - down to 0.5 maximum continuous power at 25 c 2w electrical data and ordering information resistance matching v max. (v) i nt at i t at max. trip-time at 1 a (s) i max. at v max. (a) catalog number r 25 ( ) tol (%) 25 c (ma) 70 c (ma) 25 c (ma) 12nc sap coding telecommunication types 10 20 no 245 165 100 270 3.0 2.0 2381 661 97012 (3) ptctz3nr100gte (3) 10 20 0.5 245 165 100 270 3.0 2.0 2381 661 97016 (3) ptctz3mr100gte (3) 40 25 no 265 80 50 130 0.8 2.0 2381 661 97002 ptctz3nr400hte 25 20 1 265 120 70 220 1.3 2.0 2381 661 97005 (3) ptctz3mr250hte (3) 15 to 20 - no 300 150 100 250 1.5 1.5 2381 661 97004 (3) ptctz3nr150kte (3) 15 to 20 - 0.5 300 150 100 250 1.5 2.0 2381 661 97003 (3) ptctz3mr150kte (3) 20 20 0.5 300 120 70 250 1.4 1.5 2381 661 97018 (3) ptctz3mr200kte (3) 35 + 15/- 20 1 425 110 70 175 1.0 0.7 2381 661 97009 (3) ptctz3mr350mte (3) 50 20 1 425 90 60 150 0.8 0.7 2381 661 97019 ptctz3mr500mte general industrial types 3.3 25 - 24 400 - 650 6.0 8.0 2381 661 97013 (3) ptctz3nr339cte (3) 9.4 25 - 60 150 100 300 1.8 3.0 2381 661 97011 (3) ptctz3nr949ete (3)
2381 661 97.../ptctz..r....te smd ptc thermistors for overload protection vishay bccomponents document number: 29068 for technical questions, contact: nlr@vishay.com www.vishay.com revision: 27-oct-09 39 ptc outlines dimensions in millimeters dimensions of solder lands in millimeters soldering conditions this smd thermistor is only suitable for reflow soldering, in accordance with jedec j-std-020d. soldering processes which can be used are reflow (infrared and convection heating) and vapour phase. the maximum temperature of 260 c during 10 s should not be exceeded and no liquid flux should be allowed to reach the ceramic body. typical examples of a soldering processes that will pr ovide reliable joints without damage, are shown below. handling precautions the special leadframe construction a nd the applied processes do not allow hi gh handling forces on the component. because of the nature of ptc ceramic material the component should not be touched with bare hands, as the residue of perspiration can influence component behaviour at high temperatures. handling forces vertically applied to the centre of the compone nt should be limited to 5 n in the non-soldered condition and to 10 n in the soldered. these forces should not be exceeded during the handling, tran sportation and packaging of the soldered product. for those applications where higher handling forces can be present, a reinforced vers ion is available on request. ptc smd ceramic size: 6.5 mm 3.6 0.1 10 0.25 8.0 2.8 2 4 0.1 4 0.2 0.2 10 max. 1 7.6 0.25 3.45 0.15 1.2 7.2 0 - 0.2 0.6 + 0.6 0 3 2 2 3 1 material information ref. description material and remarks 1 ceramic batio3 doped 2 metallization nicr ag layer (vacuum deposition) 3 leadframe ni plated phosphor bronze material covered by pbsn8 solder layer 11 5 2 0 50 100 150 200 25 0 300 250 200 150 100 50 0 t (s) 215 c 180 c 20 to 40 s internal preheating, e.g. by infrared, max. 2 k/s 100 c 130 c external preheating forced cooling t (c) typical values (solid line) process limits (dotted lines) vapour phase soldering reflow soldering 0 50 100 150 200 250 300 250 200 150 100 50 0 10 s 260 c t (s) 215 c 180 c 10 s 40 s 2 k/s t (c) 245 c 130 c typical values (solid line) process limits (dotted lines)
legal disclaimer notice www.vishay.com vishay revision: 02-oct-12 1 document number: 91000 disclaimer all product, product specifications and data are subject to change without notice to improve reliability, function or design or otherwise. vishay intertechnology, inc., its affiliates, agents, and employee s, and all persons acting on it s or their behalf (collectivel y, vishay), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any o ther disclosure relating to any product. vishay makes no warranty, repres entation or guarantee regarding the suitabilit y of the products for any particular purpose or the continuing production of any product. to the maximum extent permitted by applicable law, vi shay disclaims (i) any and all liability arising out of the application or use of any product, (ii) any and all liability, including without limitation specia l, consequential or incidental damages, and (iii) any and all i mplied warranties, including warra nties of fitness for particular purpose, non-infringement and merchantability. statements regarding the suitability of products for certain type s of applications are based on vishays knowledge of typical requirements that are often placed on vishay products in generic applications. such statements are not binding statements about the suitability of products for a particular application. it is the customers responsib ility to validate that a particu lar product with the properties descri bed in the product specification is suitable fo r use in a particular application. parameters provided in datasheets and/or specification s may vary in different applications an d performance may vary over time. all operating parameters, including typical pa rameters, must be validated for each customer application by the customers technical experts. product specifications do not expand or otherwise modify vish ays terms and condit ions of purchase, including but not limited to the warranty expressed therein. except as expressly indicate d in writing, vishay products are not designed for use in medical, life-saving, or life-sustaining applications or for any other application in which the failure of the vi shay product could result in personal injury or death. customers using or selling vishay products not expressly indicated for use in such applications do so at their own risk. pleas e contact authorized vishay personnel to ob tain written terms and conditions regarding products designed for such applications. no license, express or implied, by estoppel or otherwise, to any intellectual prope rty rights is granted by this document or by any conduct of vishay. product names and markings noted herein may be trad emarks of their respective owners. material category policy vishay intertechnology, inc. hereby certi fies that all its products that are id entified as rohs-compliant fulfill the definitions and restrictions defined under directive 2011/65/eu of the euro pean parliament and of the council of june 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment (eee) - recast, unless otherwis e specified as non-compliant. please note that some vishay documentation may still make reference to rohs directive 2002/95/ ec. we confirm that all the products identified as being compliant to directive 2002 /95/ec conform to directive 2011/65/eu. vishay intertechnology, inc. hereby certifi es that all its products that are identified as ha logen-free follow halogen-free requirements as per jedec js709a stan dards. please note that some vishay documentation may still make reference to the iec 61249-2-21 definition. we co nfirm that all the products identified as being compliant to iec 61249-2-21 conform to jedec js709a standards.


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