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ctvs ceramic transient voltage suppressors leaded transient voltage/rfi suppressors (shcvs) series/type: date: february 2016 ? epcos ag 2016. reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without epcos' prior express consent is prohibited. epcos ag is a tdk group company.
epcos type designation system for leaded transient voltage/ rfi suppressors sr 1 s 14 b m 474 x g sr leaded, shcv series eia case sizes of used chips: 6 12 x 06 / 3.2 x 1.6 mm 1 18 x 12 / 4.5 x 3.2 mm 2 22 x 20 / 5.7 x 5.0 mm varistor voltage tolerance: k 10% s special tolerance maximum rms operating voltage (v rms ): 14 14 v special varistor voltage tolerance: b special tolerance capacitance tolerance: m 20% capacitance value: 474 47 10 4 pf 0.47 f capacitor ceramic: x x7r taping mode: g taped version bulk leaded transient voltage/rfi suppressors (shcvs) shcv series page 2 of 22 please read cautions and warnings and important notes at the end of this document.
1) operating temperatures above +85 c can cause a change in color of the coating material, which has no impact on the reliability of the components. features rfi noise suppression and transient overvoltage protection integrated in a single component reliable protection against automotive transients such as load dump and jump-start (for sr1 and sr2 types) high capacitance (up to 4.7 f) low clamping voltage rohs-compatible suitable for lead-free soldering pspice simulation models available applications rfi noise suppression and transient overvoltage protection on dc lines of small motors, windscreen wipers, window lifters, mirrors, central locking, memory seat, sunroof design combination of multilayer rf filter capacitor and multilayer varistor coating: flame-retardant to ul 94 v0, epoxy resin terminals: tinned iron wire, rohs-compatible v/i characteristics and derating curves v/i and derating curves are attached to the data sheet. the curves are sorted by v rms and then by case size, which is included in the type designation. general technical data maximum rms operating voltage v rms,max 14 ... 35 v maximum dc operating voltage v dc,max 16 ... 45 v maximum surge current (8/20 s) i surge,max 100 ... 1200 a maximum load dump energy (10 pulses) w ld 1.5 ... 12 j maximum jump-start voltage (5 min) v jump 24.5 ... 45 v maximum clamping voltage (8/20 s) v clamp,max 38 ... 90 v nominal capacitance (1 khz, 0.5 v) c nom 220 ... 4700 nf insulation resistance r ins 3 10 m w response time t resp < 25 ns operating temperature 1) t op 55/+125 c storage temperature lct/uct 55/+150 c leaded transient voltage/rfi suppressors (shcvs) shcv series page 3 of 22 please read cautions and warnings and important notes at the end of this document.
electrical specifications and ordering codes maximum ratings (t op,max = 125 c) type ordering code v rms,max v v dc,max v i surge,max (8/20 s) a w max (2 ms) mj w ld (10 pulses) j p diss,max mw sr1s14bm105x b72587g3140s200 14 16 800 2400 6 15 sr1s14bm155x b72587h3140s200 14 16 800 2400 6 15 sr1s14bm474x b72587e3140s200 14 16 800 2400 6 15 sr2s14bm155x B72547H3140S200 14 16 1200 5800 12 30 sr2s14bm474x b72547e3140s200 14 16 1200 5800 12 30 sr2s14bm475x b72547l3140s200 14 16 1200 5800 12 30 sr6k14m224x b72527c3140k000 14 18 200 500 1.5 8 sr1k20m105x b72587g3200k000 20 26 800 3000 6 15 sr1k20m155x b72587h3200k000 20 26 800 3000 6 15 sr1k20m225x b72587j3200k000 20 26 800 3000 6 15 sr1k20m474x b72587e3200k000 20 26 800 3000 6 15 sr2k20m105x b72547g3200k000 20 26 1200 7800 12 30 sr2k20m155x b72547h3200k000 20 26 1200 7800 12 30 sr2k20m474x b72547e3200k000 20 26 1200 7800 12 30 sr6k20m105x b72527g3200k000 20 26 200 700 1.5 8 sr1k30m155x b72587h3300k000 30 38 800 4200 6 15 sr6k35m105x b72527g3350k000 35 45 100 400 1.5 8 sr6k35m474x b72527e3350k000 35 45 100 400 1.5 8 leaded transient voltage/rfi suppressors (shcvs) shcv series page 4 of 22 please read cautions and warnings and important notes at the end of this document.
characteristics (t a = 25 c) type v v (1 ma) v d v v % v jump (5 min) v v clamp,max v i clamp (8/20 s) a c nom (1 khz, 0.5 v) nf d c nom % sr1s14bm105x 22 +23/ 0 24.5 40 5 1000 20 sr1s14bm155x 22 +23/ 0 24.5 40 5 1500 20 sr1s14bm474x 22 +23/ 0 24.5 40 5 470 20 sr2s14bm155x 22 +23/ 0 24.5 40 10 1500 20 sr2s14bm474x 22 +23/ 0 24.5 40 10 470 20 sr2s14bm475x 22 +23/ 0 24.5 40 10 4700 20 sr6k14m224x 22 10 - 38 1 220 20 sr1k20m105x 33 10 26 58 5 1000 20 sr1k20m155x 33 10 26 58 5 1500 20 sr1k20m225x 33 10 26 58 5 2200 20 sr1k20m474x 33 10 26 58 5 470 20 sr2k20m105x 33 10 26 58 10 1000 20 sr2k20m155x 33 10 26 58 10 1500 20 sr2k20m474x 33 10 26 58 10 470 20 sr6k20m105x 33 10 - 54 1 1000 20 sr1k30m155x 47 10 45 77 5 1500 20 sr6k35m105x 56 10 - 90 1 1000 20 sr6k35m474x 56 10 - 90 1 470 20 temperature derating climatic category: 55/+125 c leaded transient voltage/rfi suppressors (shcvs) shcv series page 5 of 22 please read cautions and warnings and important notes at the end of this document.
dimensional drawing dimensions in mm type shcv w max h max s max sr1 ... 474x 7.3 7.8 3.7 sr1 ... 105x 7.3 7.8 3.7 sr1 ... 155x 7.3 7.8 3.7 sr1 ... 225x 7.3 7.8 4.1 sr2 ... 474x 7.8 9.0 3.6 sr2 ... 105x 7.8 9.0 4.1 sr2 ... 155x 7.8 9.0 4.1 sr2 ... 475x 7.8 9.0 4.1 sr6 ... 6.0 7.5 4.5 delivery mode designation taping mode ordering code, last two digits - bulk b725********* 00 g taped on reel b725********* 51 ga taped in ammo pack b725********* 54 m14 lead length 14 mm b725********* 33 standard delivery mode for shcv types is bulk. taped versions on reel, ammo pack and special lead length available upon request. for further information on taping please contact epcos. packing units for: type pieces sr6 2000 sr1 / sr2 1000 leaded transient voltage/rfi suppressors (shcvs) shcv series page 6 of 22 please read cautions and warnings and important notes at the end of this document.
soldering instructions soldering components with wire leads such as leaded transient voltage/ rfi suppressors (shcvs) can be soldered using all conventional methods. recommended temperature profile in wave soldering storage the shcv type series should be soldered after shipment from epcos within the time specified: 24 months. the parts are to be left in the original packing to avoid any soldering problems caused by oxidized terminals. storage temperature ? 25 to 45 c. max. relative humidity (without condensation): < 75% annual average, < 95% on max. 30 days per annum. standards iec 60068-2-20 leaded transient voltage/rfi suppressors (shcvs) shcv series page 7 of 22 please read cautions and warnings and important notes at the end of this document.
typical characteristics capacitance change d c/c 25 versus temperature t note: the capacitance and the dissipation factor shall meet the specified values 1000 hours after the last heat treatment above the curie temperature. leaded transient voltage/rfi suppressors (shcvs) shcv series page 8 of 22 please read cautions and warnings and important notes at the end of this document.
v/i characteristics sr1s14b* sr2s14b* leaded transient voltage/rfi suppressors (shcvs) shcv series page 9 of 22 please read cautions and warnings and important notes at the end of this document.
v/i characteristics sr6k14* sr1k20* leaded transient voltage/rfi suppressors (shcvs) shcv series page 10 of 22 please read cautions and warnings and important notes at the end of this document.
v/i characteristics sr2k20* sr6k20* leaded transient voltage/rfi suppressors (shcvs) shcv series page 11 of 22 please read cautions and warnings and important notes at the end of this document.
v/i characteristics sr1k30* sr6k35* leaded transient voltage/rfi suppressors (shcvs) shcv series page 12 of 22 please read cautions and warnings and important notes at the end of this document.
derating curves maximum surge current i surge,max = f (t r , pulse train) for explanation of the derating curves refer to "general technical information", chapter 2.7.1 shcv-sr1 ... shcv-sr2 ... leaded transient voltage/rfi suppressors (shcvs) shcv series page 13 of 22 please read cautions and warnings and important notes at the end of this document.
derating curves maximum surge current i surge,max = f (t r , pulse train) for explanation of the derating curves refer to "general technical information", chapter 2.7.1 sr6k14 , sr6k20 sr6k35 ... leaded transient voltage/rfi suppressors (shcvs) shcv series page 14 of 22 please read cautions and warnings and important notes at the end of this document.
symbols and terms for ceramic transient voltage suppressors (ctvs) symbol term c line,max maximum capacitance per line c line,min minimum capacitance per line c line,typ typical capacitance per line c max maximum capacitance c min minimum capacitance c nom nominal capacitance d c nom tolerance of nominal capacitance c typ typical capacitance f cut-off,max maximum cut-off frequency f cut-off,min minimum cut-off frequency f cut-off,typ typical cut-off frequency f res,typ typical resonance frequency i current i clamp clamping current i leak leakage current i leak,max maximum leakage current i leak,typ typical leakage current i pp peak pulse current i surge,max maximum surge current (also termed peak current) lct lower category temperature l typ typical inductance p diss,max maximum power dissipation p pp peak pulse power r ins insulation resistance r min minimum resistance r s resistance per line r s,typ typical resistance per line t a ambient temperature t op operating temperature t op,max maximum operating temperature t stg storage temperature leaded transient voltage/rfi suppressors (shcvs) shcv series page 15 of 22 please read cautions and warnings and important notes at the end of this document.
symbol term t r duration of equivalent rectangular wave t resp response time t resp,max maximum response time uct upper category temperature v voltage v br,min minimum breakdown voltage v clamp,max maximum clamping voltage v dc,max maximum dc operating voltage (also termed working voltage) v esd,air air discharge esd capability v esd,contact contact discharge esd capability v jump maximum jump-start voltage v rms,max maximum ac operating voltage, root-mean-square value v v varistor voltage (also termed breakdown voltage) v ld maximum load dump voltage v leak measurement voltage for leakage current v v,min minimum varistor voltage v v,max maximum varistor voltage d v v tolerance of varistor voltage w ld maximum load dump energy w max maximum energy absorption (also termed transient energy) a typ typical insertion loss tan d dissipation factor lead spacing * maximum possible application conditions all dimensions are given in mm. the commas used in numerical values denote decimal points. leaded transient voltage/rfi suppressors (shcvs) shcv series page 16 of 22 please read cautions and warnings and important notes at the end of this document.
for ceradiodes ceradiode semiconductor diode c max maximum capacitance c typ typical capacitance i br i r , i t (reverse) current @ breakdown voltage i leak i rm (reverse) leakage current i pp i p , i pp current @ clamping voltage; peak pulse current p pp p pp peak pulse power t op operating temperature t stg storage temperature v br v br (reverse) breakdown voltage v br,min minimum breakdown voltage v clamp v cl, v c clamping voltage v clamp,max maximum clamping voltage v dc v rm , v rwm , v wm , v dc (reverse) stand-off voltage, working voltage, operating voltage v dc,max maximum dc operating voltage v esd,air air discharge esd capability v esd,contact contact discharge esd capability v leak v rm , v rwm , v wm , v dc (reverse) voltage @ leakage current - *) i f current @ forward voltage - *) i rm , i rm,max @v rm (reverse) current @ maximum reverse stand-off voltage, working voltage, operating voltage - *) v f forward voltage *) not applicable due to bidirectional characteristics of ceradiodes. leaded transient voltage/rfi suppressors (shcvs) shcv series page 17 of 22 please read cautions and warnings and important notes at the end of this document.
cautions and warnings general some parts of this publication contain statements about the suitability of our ceramic transient voltage suppressor (ctvs) components (multilayer varistors (mlvs)), ceradiodes, esd/emi fil- ters, leaded transient voltage/ rfi suppressors (shcv types)) for certain areas of application, in- cluding recommendations about incorporation/design-in of these products into customer applica- tions. the statements are based on our knowledge of typical requirements often made of our ctvs devices in the particular areas. we nevertheless expressly point out that such statements cannot be regarded as binding statements about the suitability of our ctvs components for a particular customer application. as a rule, epcos is either unfamiliar with individual customer ap- plications or less familiar with them than the customers themselves. for these reasons, it is al- ways incumbent on the customer to check and decide whether the ctvs devices with the proper- ties described in the product specification are suitable for use in a particular customer applica- tion. do not use epcos ctvs components for purposes not identified in our specifications, application notes and data books. ensure the suitability of a ctvs in particular by testing it for reliability during design-in. always evaluate a ctvs component under worst-case conditions. pay special attention to the reliability of ctvs devices intended for use in safety-critical applications (e.g. medical equipment, automotive, spacecraft, nuclear power plant). design notes always connect a ctvs in parallel with the electronic circuit to be protected. consider maximum rated power dissipation if a ctvs has insufficient time to cool down between a number of pulses occurring within a specified isolated time period. ensure that electrical characteristics do not degrade. consider derating at higher operating temperatures. choose the highest voltage class compatible with derating at higher temperatures. surge currents beyond specified values will puncture a ctvs. in extreme cases a ctvs will burst. if steep surge current edges are to be expected, make sure your design is as low-inductance as possible. in some cases the malfunctioning of passive electronic components or failure before the end of their service life cannot be completely ruled out in the current state of the art, even if they are operated as specified. in applications requiring a very high level of operational safety and especially when the malfunction or failure of a passive electronic component could endanger human life or health (e.g. in accident prevention, life-saving systems, or automotive battery line applications such as clamp 30), ensure by suitable design of the application or other measures (e.g. installation of protective circuitry or redundancy) that no injury or damage is sustained by third parties in the event of such a malfunction or failure. only use ctvs components from the automotive series in safety-relevant applications. leaded transient voltage/rfi suppressors (shcvs) shcv series page 18 of 22 please read cautions and warnings and important notes at the end of this document.
specified values only apply to ctvs components that have not been subject to prior electrical, mechanical or thermal damage. the use of ctvs devices in line-to-ground applications is therefore not advisable, and it is only allowed together with safety countermeasures like thermal fuses. storage only store ctvs in their original packaging. do not open the package prior to processing. storage conditions in original packaging: temperature 25 to +45 c, relative humidity 75% annual average, maximum 95%, dew precipitation is inadmissible. do not store ctvs devices where they are exposed to heat or direct sunlight. otherwise the packaging material may be deformed or ctvs may stick together, causing problems during mounting. avoid contamination of the ctvs surface during storage, handling and processing. avoid storing ctvs devices in harmful environments where they are exposed to corrosive gases for example (so x , cl). use ctvs as soon as possible after opening factory seals such as polyvinyl-sealed packages. solder ctvs components after shipment from epcos within the time specified: ctvs with ni barrier termination, 12 months ctvs with agpt termination, 6 months shcv, 24 months handling do not drop ctvs components and allow them to be chipped. do not touch ctvs with your bare hands - gloves are recommended. avoid contamination of the ctvs surface during handling. washing processes may damage the product due to the possible static or cyclic mechanical loads (e.g. ultrasonic cleaning). they may cause cracks to develop on the product and its parts, which might lead to reduced reliability or lifetime. mounting when ctvs devices are encapsulated with sealing material or overmolded with plastic material, electrical characteristics might be degraded and the life time reduced. make sure an electrode is not scratched before, during or after the mounting process. make sure contacts and housings used for assembly with ctvs components are clean before mounting. the surface temperature of an operating ctvs can be higher. ensure that adjacent components are placed at a sufficient distance from a ctvs to allow proper cooling. avoid contamination of the ctvs surface during processing. leaded transient voltage/rfi suppressors (shcvs) shcv series page 19 of 22 please read cautions and warnings and important notes at the end of this document.
soldering complete removal of flux is recommended to avoid surface contamination that can result in an instable and/or high leakage current. use resin-type or non-activated flux. bear in mind that insufficient preheating may cause ceramic cracks. rapid cooling by dipping in solvent is not recommended, otherwise a component may crack. operation use ctvs only within the specified operating temperature range. use ctvs only within specified voltage and current ranges. environmental conditions must not harm a ctvs. only use them in normal atmospheric conditions. reducing the atmosphere (e.g. hydrogen or nitrogen atmosphere) is prohibited. prevent a ctvs from contacting liquids and solvents. make sure that no water enters a ctvs (e.g. through plug terminals). avoid dewing and condensation. epcos ctvs components are mainly designed for encased applications. under all circumstances avoid exposure to: direct sunlight rain or condensation steam, saline spray corrosive gases atmosphere with reduced oxygen content epcos ctvs devices are not suitable for switching applications or voltage stabilization where static power dissipation is required. this listing does not claim to be complete, but merely reflects the experience of epcos ag. display of ordering codes for epcos products the ordering code for one and the same epcos product can be represented differently in data sheets, data books, other publications, on the epcos website, or in order-related documents such as shipping notes, order confirmations and product labels. the varying representations of the ordering codes are due to different processes employed and do not affect the specifications of the respective products . detailed information can be found on the internet under www.epcos.com/orderingcodes leaded transient voltage/rfi suppressors (shcvs) shcv series page 20 of 22 please read cautions and warnings and important notes at the end of this document.
the following applies to all products named in this publication: 1. some parts of this publication contain statements about the suitability of our products for certain areas of application . these statements are based on our knowledge of typical re- quirements that are often placed on our products in the areas of application concerned. we nevertheless expressly point out that such statements cannot be regarded as binding statements about the suitability of our products for a particular customer application . as a rule, epcos is either unfamiliar with individual customer applications or less familiar with them than the customers themselves. for these reasons, it is always ultimately incum- bent on the customer to check and decide whether an epcos product with the properties de- scribed in the product specification is suitable for use in a particular customer application. 2. we also point out that in individual cases, a malfunction of electronic components or failure before the end of their usual service life cannot be completely ruled out in the current state of the art, even if they are operated as specified . in customer applications requiring a very high level of operational safety and especially in customer applications in which the malfunction or failure of an electronic component could endanger human life or health (e.g. in accident prevention or lifesaving systems), it must therefore be ensured by means of suitable design of the customer application or other action taken by the customer (e.g. installation of protective circuitry or redundancy) that no injury or damage is sustained by third parties in the event of malfunction or failure of an electronic component. 3. the warnings, cautions and product-specific notes must be observed. 4. in order to satisfy certain technical requirements, some of the products described in this publication may contain substances subject to restrictions in certain jurisdictions (e.g. because they are classed as hazardous) . useful information on this will be found in our ma- terial data sheets on the internet (www.epcos.com/material). should you have any more de- tailed questions, please contact our sales offices. 5. we constantly strive to improve our products. consequently, the products described in this publication may change from time to time . the same is true of the corresponding product specifications. please check therefore to what extent product descriptions and specifications contained in this publication are still applicable before or when you place an order. we also reserve the right to discontinue production and delivery of products . consequently, we cannot guarantee that all products named in this publication will always be available. the aforementioned does not apply in the case of individual agreements deviating from the fore- going for customer-specific products. 6. unless otherwise agreed in individual contracts, all orders are subject to the current ver- sion of the "general terms of delivery for products and services in the electrical in- dustry" published by the german electrical and electronics industry association (zvei) . important notes page 21 of 22
7. the trade names epcos, alu-x, ceradiode, ceralink, cerapad, ceraplas, csmp, cssp, ctvs, deltacap, digisimic, dssp, exocore, filtercap, formfit, leaxield, miniblue, minicell, mkd, mkk, motorcap, pcc, phasecap, phasecube, phasemod, phicap, pqsine, siferrit, sifi, sikorel, silvercap, simdad, simic, simid, sineformer, siov, sip5d, sip5k, tfap, thermofuse, windcap are trademarks registered or pending in europe and in other countries. further information will be found on the internet at www.epcos.com/trademarks. important notes page 22 of 22

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