SIOV metal oxide varistors Housed (ThermoFuse) varistors, AdvanceD series Series/Type: ETFV20 Date: April 2011 (c) EPCOS AG 2015. 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. Housed varistors ETFV20 ThermoFuse varistors, ETFV20 series Construction Round varistor element, leaded Coating: epoxy resin, flame-retardant to UL 94 V-0 Terminals: tinned copper wire, metal compound wire Housing: thermoplastic, flame-retardant to UL 94 V-0 Features Wide operating voltage range 130 ... 420 VRMS Self-protected under abnormal overvoltage conditions High-energy AdvanceD series E2 Approvals UL IEC VDE Applications Air conditioner, refrigerator, TV, etc. Power meter, inverter, telecom equipment, etc. Transient voltage surge suppressors (TVSS) Solar inverter Delivery mode Bulk (standard) Typical applications General technical data Climatic category Operating temperature Storage temperature Electric strength Insulation resistance Response time Please read Cautions and warnings and Important notes at the end of this document. to IEC 60068-1 to IEC 61051 to IEC 61051 to IEC 61051 Page 2 of 15 40/85/56 40 ... + 85 40 ... + 85 2.5 100 < 25 C C kVRMS M ns Housed varistors ETFV20 ThermoFuse varistors, ETFV20 series Electrical specifications and ordering codes Maximum ratings (TA = 85 C) Ordering code B72220T2131K101 B72220T2141K101 B72220T2151K101 B72220T2171K101 B72220T2211K101 B72220T2231K101 B72220T2251K101 B72220T2271K101 B72220T2301K101 B72220T2321K101 B72220T2351K101 B72220T2381K101 B72220T2421K101 Type (untaped) SIOVETFV20K130E2 ETFV20K140E2 ETFV20K150E2 ETFV20K175E2 ETFV20K210E2 ETFV20K230E2 ETFV20K250E2 ETFV20K275E2 ETFV20K300E2 ETFV20K320E2 ETFV20K350E2 ETFV20K385E2 ETFV20K420E2 VRMS VDC Wmax (2 ms) J 100 110 120 135 160 180 195 215 250 273 273 273 273 Pmax V 170 180 200 225 270 300 320 350 385 420 460 505 560 imax (8/20 s) A 10000 10000 10000 10000 10000 10000 10000 10000 10000 10000 10000 10000 10000 V 130 140 150 175 210 230 250 275 300 320 350 385 420 Vv (1 mA) V 205 220 240 270 330 360 390 430 470 510 560 620 680 Vv (1 mA) % 10 10 10 10 10 10 10 10 10 10 10 10 10 vc,max (ic) V 340 360 395 455 545 595 650 710 775 840 910 1025 1120 ic Ctyp (1 kHz) pF 1340 1240 1160 1000 835 760 700 630 580 540 500 450 420 W 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Characteristics (TA = 25 C) Ordering code B72220T2131K101 B72220T2141K101 B72220T2151K101 B72220T2171K101 B72220T2211K101 B72220T2231K101 B72220T2251K101 B72220T2271K101 B72220T2301K101 B72220T2321K101 B72220T2351K101 B72220T2381K101 B72220T2421K101 Type (untaped) SIOVETFV20K130E2 ETFV20K140E2 ETFV20K150E2 ETFV20K175E2 ETFV20K210E2 ETFV20K230E2 ETFV20K250E2 ETFV20K275E2 ETFV20K300E2 ETFV20K320E2 ETFV20K350E2 ETFV20K385E2 ETFV20K420E2 Please read Cautions and warnings and Important notes at the end of this document. Page 3 of 15 A 100 100 100 100 100 100 100 100 100 100 100 100 100 Housed varistors ETFV20 ThermoFuse varistors, ETFV20 series Dimensional drawings Weight Nominal diameter mm 20 Lead configuration Please read Cautions and warnings and Important notes at the end of this document. Page 4 of 15 VRMS V 130 ... 420 Weight g 5.2 ... 8.4 Housed varistors ETFV20 ThermoFuse varistors, ETFV20 series Reliability data Test Test methods/conditions Requirement Varistor voltage The voltage between two terminals with To meet the specified value the specified measuring current applied is called VV (1 mADC @ 0.2 ... 2 s). Clamping voltage The maximum voltage between two terminals with the specified standard impulse current (8/20 s) applied. To meet the specified value Endurance at upper category temperature 1000 h at UCT |V/V (1 mA)| 10% 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 Surge current derating, 2 ms 10 surge currents (2 ms), unipolar, |V/V (1 mA)| 10% interval 120 s, amplitude corresponding (measured in direction of to derating curve for 10 impulses at surge current) 2 ms No visible damage Electric strength IEC 61051-1, test 4.9.2 After having continuously applied the maximum allowable AC 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 VV shall be measured. Metal balls method, 2500 VRMS, 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. Please read Cautions and warnings and Important notes at the end of this document. Page 5 of 15 |V/V (1 mA)| 10% (measured in direction of surge current) No visible damage No breakdown Housed varistors ETFV20 ThermoFuse varistors, ETFV20 series Test Test methods/conditions Requirement Climatic sequence The specimen shall be subjected to: a) dry heat at UCT, 16 h, IEC 60068-2-2, test Ba b) damp heat, 1st cycle: 55 C, 93% r. H., 24 h, IEC 60068-2-30, test Db c) cold, LCT, 2 h, IEC 60068-2-1, test Aa d) damp heat, additional 5 cycles: 55 C/25 C, 93% r. H., 24 h/cycle, IEC 60068-2-30, test Db. |V/V (1 mA)| 10% Rins 100 M Then the specimen shall be stored at room temperature and normal humidity for 1 to 2 h. Thereafter, the change of VV shall be measured. Thereafter, insulation resistance Rins shall be measured at V = 500 V. Rapid change of temperature IEC 60068-2-14, test Na, LCT/UCT, dwell time 30 min, 5 cycles |V/V (1 mA)| 5% No visible damage Damp heat, steady state IEC 60068-2-78, test Ca |V/V (1 mA)| 10% The specimen shall be subjected to Rins 100 M 40 2 C, 90 to 95% r. H. for 56 days without load / with 10% of the maximum continuous DC operating voltage VDC. Then stored at room temperature and normal humidity for 1 to 2 h. Thereafter, the change of VV shall be measured. Thereafter, insulation resistance Rins shall be measured at V = 500 V (insulated varistors only). Please read Cautions and warnings and Important notes at the end of this document. Page 6 of 15 Housed varistors ETFV20 ThermoFuse varistors, ETFV20 series Test Test methods/conditions Solderability IEC 60068-2-20, test Ta, Resistance to soldering heat IEC 60068-2-20, test Tb, method 1A, 260 C, 10 s: Requirement The inspection shall be carried out under adequate method 1 with modified conditions for light with normal eyesight or lead-free solder alloys: 245 C, 3 s: with the assistance of a After dipping the terminals to a depth of magnifier capable of giving approximately 3 mm from the body in a a magnification of 4 to soldering bath of 245 C for 3 s, the 10 times. The dipped terminals shall be visually examined. 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 de-wetted areas. These imperfections shall not be concentrated in one area. |V/V (1 mA)| 5% No visible damage 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 specimen, be held there for 10 1 s and then be stored at room temperature and normal humidity for 1 to 2 h. The change of VV shall be measured and the specimen shall be visually examined. Tensile strength IEC 60068-2-21, test Ua1 |V/V (1 mA)| 5% After gradually applying the force specified below and keeping the unit fixed for 10 s, the terminal shall be visually examined for any damage. No break of solder joint, no wire break Force for wire diameter: 0.6 mm = 10 N 0.8 mm = 10 N 1.0 mm = 20 N Please read Cautions and warnings and Important notes at the end of this document. Page 7 of 15 Housed varistors ETFV20 ThermoFuse varistors, ETFV20 series Test Test methods/conditions Requirement Vibration IEC 60068-2-6, test Fc, method B4 Frequency range: 10 ... 55 Hz Amplitude: 0.75 mm or 98 m/s2 Duration: 6 h (3 * 2 h) Pulse: sine wave After repeatedly applying a single harmonic vibration according to the table above. The change of VV shall be measured and the specimen shall be visually examined. |V/V (1 mA)| 5% IEC 60068-2-29, test Eb Pulse duration: 6 ms Max. acceleration: 400 m/s2 Number of bumps: 4000 Pulse: half sine IEC 60695-11-5 (needle flame test) |V/V (1 mA)| 5% Bump Fire hazard Severity: vertical 10 s Please read Cautions and warnings and Important notes at the end of this document. Page 8 of 15 No visible damage No visible damage 5 s max. Housed varistors ETFV20 ThermoFuse varistors, ETFV20 series Test Test methods/conditions Requirement Abnormal overvoltage test The device is designed to meet the limited current abnormal overvoltage condition, outlined in section 39.4 of UL 1449, 3rd edition. Detailed test voltage applied onto the device for different types as in the following table: Type Device rating V Test voltage V ETFV20K130E2 130 260 ETFV20K140E2 140 280 ETFV20K150E2 150 300 ETFV20K175E2 175 350 ETFV20K210E2 210 420 ETFV20K230E2 230 415 ETFV20K250E2 250 500 ETFV20K275E2 275 480 ETFV20K300E2 300 600 ETFV20K320E2 320 600 ETFV20K350E2 350 600 ETFV20K385E2 385 600 ETFV20K420E2 420 600 Note: UCT = Upper category temperature LCT = Lower category temperature Rins = Insulation resistance Please read Cautions and warnings and Important notes at the end of this document. Page 9 of 15 Any of these phenomena shall not be observed, or this specimen will be judged as failed part: 1. Emission of flame, molten metal, glowing or flaming particles through any openings (pre-existed or created as a result of the test) in the product. 2. Charring, glowing, or flaming of the supporting surface, tissue paper, or cheesecloth. 3. Ignition of the enclosure. 4. Creation of any openings in the enclosure that result in accessibility of live parts, when evaluated in accordance with accessibility of live parts test in section 58.2 of UL1449, 3rd edition. Housed varistors ETFV20 ThermoFuse varistors, ETFV20 series v/i characteristics v = f (i) for explanation of the characteristics refer to "General technical information", chapter 1.6.3 A = Leakage current, B = Protection level } for worst-case varistor tolerances SIOV-ETFV20 ... E2 Please read Cautions and warnings and Important notes at the end of this document. Page 10 of 15 Housed varistors ETFV20 ThermoFuse varistors, ETFV20 series Derating curves Maximum surge current imax = f (tr, pulse train) For explanation of the derating curves refer to "General technical information", section 1.8.1 SIOV-ETFV20 ... E2 Please read Cautions and warnings and Important notes at the end of this document. Page 11 of 15 Housed varistors ETFV20 ThermoFuse varistors, ETFV20 series Cautions and warnings General 1. EPCOS metal oxide varistors are designed for specific applications and should not be used for purposes not identified in our specifications, application notes and data books unless otherwise agreed with EPCOS during the design-in-phase. 2. Ensure suitability of SIOVs through reliability testing during the design-in phase. SIOVs should be evaluated taking into consideration worst-case conditions. 3. For applications of SIOVs in line-to-ground circuits based on various international and local standards there are restrictions existing or additional safety measures required. Storage 1. Store SIOVs only in original packaging. Do not open 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 an SIOV's during storage, handling and processing. 4. Avoid storage of SIOVs in harmful environments that can affect the function during long-term operation (examples given under operation precautions). 5. The SIOV type series should be soldered within the time specified: SIOV-S, -Q, -LS, -B, -SFS 24 months ETFV 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 electrodes during handling, be careful of the sharp edge of SIOV electrodes. Soldering (where applicable) 1. Use rosin-type flux or non-activated flux. 2. Insufficient preheating may cause ceramic cracks. 3. Rapid cooling by dipping in solvent is not recommended. 4. Complete removal of flux is recommended. Please read Cautions and warnings and Important notes at the end of this document. Page 12 of 15 Housed varistors ETFV20 ThermoFuse varistors, ETFV20 series Mounting 1. Potting, sealing or adhesive compounds can produce chemical reactions in the SIOV ceramic that will degrade the component's electrical characteristics. 2. Overloading SIOVs may result in ruptured packages and expulsion of hot materials. For this reason SIOVs should be physically shielded from adjacent components. 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 SIOVs. Use SIOVs only in normal atmospheric conditions. Avoid use in deoxidizing gases (chlorine gas, hydrogen sulfide gas, ammonia gas, sulfuric acid gas etc), corrosive agents, humid or salty conditions.Contact with any liquids and solvents should be prevented. Please read Cautions and warnings and Important notes at the end of this document. Page 13 of 15 Housed varistors ETFV20 ThermoFuse varistors, ETFV20 series Symbols and terms Symbol Term C Capacitance Ctyp Typical capacitance i Current ic Current at which Vc, max is measured Ileak Leakage current imax Maximum surge current (also termed peak current) Imax Maximum discharge current to IEC 61643-1 Inom Nominal discharge current to IEC 61643-1 LCT Lower category temperature Ltyp Typical inductance Pmax Maximum average power dissipation Rins Insulation resistance Rmin Minimum resistance TA Ambient temperature tr Duration of equivalent rectangular wave UCT Upper category temperature v Voltage Vclamp Clamping voltage vc, max Maximum clamping voltage at specified current ic VDC DC operating voltage Vjump Maximum jump start voltage vmax Maximum voltage Vop Operating voltage VRMS AC operating voltage, root-mean-square value VRMS, op, max Root-mean-square value of max. DC operating voltage incl. ripple current Vsurge Super imposed surge voltage VV Varistor voltage VV Tolerance of varistor voltage WLD Maximum load dump Wmax Maximum energy absorption Lead spacing All dimensions are given in mm. The commas used in numerical values denote decimal points. Please read Cautions and warnings and Important notes at the end of this document. Page 14 of 15 Important notes 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 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 incumbent on the customer to check and decide whether an EPCOS product with the properties described 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 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 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 foregoing for customer-specific 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 the Electrical Industry" published by the German Electrical and Electronics Industry Association (ZVEI). 7. The trade names EPCOS, BAOKE, Alu-X, CeraDiode, CSMP, CSSP, CTVS, DeltaCap, DigiSiMic, DSSP, FormFit, MiniBlue, MiniCell, MKK, MKD, MLSC, MotorCap, PCC, PhaseCap, PhaseCube, PhaseMod, PhiCap, SIFERRIT, SIFI, SIKOREL, SilverCap, SIMDAD, SiMic, SIMID, SineFormer, SIOV, SIP5D, SIP5K, 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. Page 15 of 15