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leaded varistors superiormp series series/type: siov-s20k385e3k1 ordering code: B72220P3381K101 date: 20130918 version: a ? epcos ag 2013. reproduction, publication and disse mination of this publication, enclosures hereto and the information contained therein without epcos' prior express cons ent is prohibited. content of header bars 1 and 2 of data sheet will b e automatically entered in headers and footers! please fill in the table and then change the color to "white". this en sures that the table disappears (invisible) for the customer pdf. don't change formatting when entering or pasting te xt in the table and don't add any cell or line in a nd to it! identification/classification 1 (header 1 + top left bar): leaded varistors identification/classification 2 (header 2 + bottom left header bar): superior-mp series ordering code: (top right header bar) B72220P3381K101 series/type: (bottom right header bar) siovs20k385e3k1 preliminary data (optional): (if necessary) department: ppd pd date: 20130918 version: a prepared by: wyatt wang release signed by pe&pd&qs: kimcy zhu, terry tian, mac gao modifications/remarks: new issue
leaded varistors B72220P3381K101 superior-mp series siov-s20k385e3k1 ppd pd 20130918 please read cautions and warnings and page 2 of 11 important notes at the end of this document . applications overvoltage protection features ? ul approval to ul1449 (file number e321126), for use in type 2 spd's. siov nomenclature s = disk type 20 = rated disk diameter k = tolerance of v v at 1ma : 10% 385 = max. ac voltage e3k1 = superiormp series general technical data climatic category to iec 600681 40/85/56 operating temperature to iec 61051 40 +85 c storage temperature 40+125 c electric strength to iec 61051 2.5 kv rms insulation resistance to iec 61051 100 m response time <25 ns
leaded varistors B72220P3381K101 superior-mp series siov-s20k385e3k1 ppd pd 20130918 please read cautions and warnings and page 3 of 11 important notes at the end of this document . dimensional drawings in mm electrical data maximum ratings (85 c): max. operating ac voltage v rms = 385 v max. operating dc voltage v dc = 505 v surge current (8/20 s) 1 time i max = 12000 a energy absorption (2 ms) 1 time w max = 370.0 j average power dissipation p max = 1.00 w characteristics (25 c): varistor voltage at 1 ma v v = 620 v 10% clamping voltage at 100 a (8/20 s) v c,max = 1025 v typ. capacitance at 1 khz c = 800 pf b max = 22.5 h max = 27.5 s max = 8.3 e = 10.0 1.0 a = 4.8 1.0 l min = 25.0 ? d = 1.0 0.05 1) seating plane in accordance with iec 60717 1)
leaded varistors B72220P3381K101 superior-mp series siov-s20k385e3k1 ppd pd 20130918 please read cautions and warnings and page 4 of 11 important notes at the end of this document . v/i characteristic 10 5 10 4 10 3 10 2 10 1 10 0 10 1 10 2 10 3 10 4 a i 50 5000 v 60 80 100 200 400 600 800 1000 2000 4000 v var9604a derating 1 x 2 x 15 x 10^2 x 10^3 x 10^4 x 10^5 x 10^6 x inf. 0.1 1 10 100 1000 10000 100000 10 100 1000 10000 t r [s] i max [a] s20k350..s20k460e3k1 t i r max.
leaded varistors B72220P3381K101 superior-mp series siov-s20k385e3k1 ppd pd 20130918 please read cautions and warnings and page 5 of 11 important notes at the end of this document . reliability data electrical characteristics test methods/description specificat ions varistor voltage the voltage between two terminals with the specified measuring current applied is called v v (1 ma dc @ 0.2 2 s). to meet the specified value. clamping voltage the maximum voltage between two terminals with the specified standard impulse current (8/20s) illustrated below applied. to meet the specified value. surge current derating, 8/20 s 10 surge currents (8/20 s), unipolar, interval 30 s, amplitude corresponding to derating curve for 10 impulses at 20 s | v/v (1 ma)| 10% (measured in direction of surge current) no visible damage surge current derating, 2 ms 10 surge currents (2ms), unipolar, interval 120s, amplitude corresponding to derating curve for 10 impulses at 2 ms | v/v (1 ma)| 10% (measured in direction of surge current) no visible damage
leaded varistors B72220P3381K101 superior-mp series siov-s20k385e3k1 ppd pd 20130918 please read cautions and warnings and page 6 of 11 important notes at the end of this document . reliability data mechanical characteristics test methods/description specificat ions tensile strength iec 60068221, test ua1 after gradually applying the force specified below and keeping the unit fixed for 10 s, the terminal s hall be visually examined for any damage. force for wire diameter: 0.6 mm = 10 n 0.8 mm = 10 n 1.0 mm = 20 n | v/v (1 ma)| 5% no break of solder joint, no wire break vibration iec 6006826, test fc, method b4 frequency range: 10 .... 55 hz amplitude: 0.75 mm or 98 m/s2 duration: 6 h (3 x 2 h) pulse: sine wave after repeatedly applying a single harmonic vibrati on according to the table above, the change of v v shall be measured and the part shall be visually examined. | v/v (1 ma)| 5% no visible damage solderability iec 60068220, test ta, method 1 wit h modified conditions for leadfree solder alloys: 245c, 3 s: after dipping the terminals to a depth of approximately 3 mm from the body in a soldering bath of 245 c for 3 s, the terminals shall be visu ally examined. the inspection shall be carried out under adequate light with normal eyesight or with the assistance of a magnifier capable of giving a magnification of 4 to 10 times. the dipped surface shall be covered with a smooth and bright solder coating with no more than small amounts of scattered imperfections such as pinholes or un wetted or dewetted areas. these imperfections shall not be concentrated in one area.
leaded varistors B72220P3381K101 superior-mp series siov-s20k385e3k1 ppd pd 20130918 please read cautions and warnings and page 7 of 11 important notes at the end of this document . characteristics test methods/description specificat ions resistance to soldering heat iec 60068220, test tb, method 1a, 260 c, 10 s: each lead shall be dipped into a solder bath having a temperature of 260 5 c to a point 2.0 to 2.5 mm from the body of the unit, be held there for 10 1 s and then be stored at room temperature and normal humidity for 1 to 2 hours. the change of v v shall be measured and the part shall be visually examined. | v/v (1 ma)| 5% no visible damage bump iec 60068229, test eb pulse duration: 6 ms max. acceleration: 400m/s 2 number of bumps: 4000 pulse: half sine | v/v (1 ma)| 5% no visible damage fire hazard iec 60695115 (needle flame test) severity: vertical 10 s 5 s max. electric strength iec 610511, test 4.9.2 metal balls method, 2500 v rms , 60 s the varistor is placed in a container holding 1.6 0.2 mm diameter metal balls such that only the terminations of the varistor are protruding. the specified voltage shall be applied between both terminals of the specimen connected together and the electrode inserted between the metal balls. no breakdown
leaded varistors B72220P3381K101 superior-mp series siov-s20k385e3k1 ppd pd 20130918 please read cautions and warnings and page 8 of 11 important notes at the end of this document . reliability data environmental characteristics test methods/description specificat ions endurance at upper category temperature 1000 h at uct after having continuously applied the maximum allowable voltage at uct 2 c for 1000 h, the specimen shall be stored at room temperature and normal humidity for 1 to 2 h. thereafter, the change of v v shall be measured. | v/v (1 ma)| 10% damp heat, steady state iec 60068278, test ca the specimen shall be subjected to 40 2 c, 90 to 95 % r.h. for 56 days without load / with 10% of th e maximum continuous dc operating voltage v dc . then stored at room temperature and normal humidity for 1 to 2 h. thereafter, the change of v v shall be measured. thereafter, insulation resistance r ins shall be measured at v = 500 v (insulated varistors only). | v/v (1 ma)| 10% r ins 100 m climatic sequence the specimen shall be subjected to: a) iec 6006822, test ba, dry heat at uct, 16 h b) iec 60068230, test db, damp heat, 1st cycle: 55 c, 93% r.h., 24 h c) iec 6006821, test aa, cold, lct, 2 h d) iec 60068230, test db, damp heat, additional 5 cycles: 55 c/25 c, 93% r.h., 24 h/cycle. then the specimen shall be stored at room temperature and normal humidity for 1 to 2 h. thereafter, the change of v v shall be measured. thereafter, insulation resistance r ins shall be measured at v = 500 v. | v/v (1 ma)| 10% r ins 100 m rapid change of temperature iec 60068214, test na, lct/uct, dwell time 30 min, 5 cycles | v/v (1 ma)| 5% no visible damage note: uct = upper category temperature lct = lower category temperature r ins = insulation resistance
leaded varistors B72220P3381K101 superior-mp series siov-s20k385e3k1 ppd pd 20130918 please read cautions and warnings and page 9 of 11 important notes at the end of this document . cautions and warnings general 1. epcos metal oxide varistors (siovs) are designed for specific applications and should not be used f or purposes not identified in our specifications, appl ication notes and data books unless otherwise agree d with epcos during the designinphase. 2. ensure suitability of siovs through reliability testing during the designin phase. the siovs shoul d be evaluated taking into consideration worstcase cond itions. 3. for applications of siovs in lineto ground circ uits based on various international and local stand ards there are restrictions existing or additional safety meas ures required. storage 1. store siovs only in original packaging. do not o pen the package before storage. 2. storage conditions in original packaging: storage temperature: 25 c +45 c relative humidity: <75% annual average, <95% on maximum 30 days a year. dew precipitation: is to be avoided. 3. avoid contamination of siovs surface during stor age, handling and processing. 4. avoid storage of siovs in harmful environments w hich can affect the function during longterm opera tion (examples given under operation precautions). 5. the siov type series should be soldered within t he time specified. siovs, q, ls 24 months. etfv and sfs types 12 months. handling 1. siovs must not be dropped. 2. components must not be touched with bare hands. gloves are recommended. 3. avoid contamination of the surface of siov elect rodes during handling, be careful of the sharp edge of siov electrodes.
leaded varistors B72220P3381K101 superior-mp series siov-s20k385e3k1 ppd pd 20130918 please read cautions and warnings and page 10 of 11 important notes at the end of this document . soldering (where applicable) 1. use rosintype flux or nonactivated flux. 2. insufficient preheating may cause ceramic cracks . 3. rapid cooling by dipping in solvent is not recom mended. 4. complete removal of flux is recommended. mounting 1. potting, sealing or adhesive compounds can produ ce chemical reactions in the siov ceramic that will degrade the components electrical characteristics. 2. overloading siovs may result in ruptured package s and expulsion of hot materials. for this reason t he siovs should be physically shielded from adjacent c omponents. operation 1. use siovs only within the specified temperature operating range 2. use siovs only within the specified voltage and current ranges. 3. environmental conditions must not harm the s iovs. use siovs only in normal atmospheric con ditions. avoid use in the presence of deoxidizing g ases (chlorine gas, hydrogen sulfide gas, ammonia g as, sulfuric acid gas, etc), corrosive agents, humid or salty conditions, avoid contact with any liquids a nd solvents.
important notes page 11 of 11 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 requirements that are often placed on our products in the areas of application c oncerned. we nevertheless expressly point out that such statements cannot be regarded as binding statements about the suitability of our products for a par ticular customer application. as a rule, epcos is either unfamiliar with individual customer applications o r less familiar with them than the customers themselves. for these reasons, it is always ultimatel y incumbent on the customer to check and decide whether an epcos product with the properties des cribed in the product specification is suitable for use in a particular customer applicati on. 2. we also point out that in individual cases, a malfunction of electronic components o r failure before the end of their usual service life cannot be completely ru led 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. i n 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. installat ion 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 observ ed. 4. in order to satisfy certain technical requirements, some of the products described in this publication may contain substances subject to restrictions in cer tain jurisdictions (e.g. because they are classed as hazardous) . useful information on this will be found in our material data sheets on the internet (www.epcos.com/material). should you have any more detailed 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 s pecifications contained in this publication are still applicable before or when you place an orde r. we also reserve the right to discontinue production and delivery of pr oducts . 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 fr om the foregoing for customerspecific products. 6. unless otherwise agreed in individual contracts, all orders are subject to the current version of the general terms of delivery for products and services in th e electrical industry published by the german electrical and electronics industry associ ation (zvei) . 7. the trade names epcos, baoke, alux, ceradiode, ceralink, cer aplas, csmp, cssp, ctvs, deltacap, digisimic, dssp, filtercap, formfit, miniblue, mini cell, mkd, mkk, mlsc, motorcap, pcc, phasecap, phasecube, phasemod, phicap, siferrit, sifi, sikorel, silvercap, simdad, simic, simid, sineformer, siov, sip5d, sip5k, therm ofuse, 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.

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