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EA2-3NU

Miniature Signal Relays

KEMET 

NOTE ON CORRECT USE

1. Notes on contact load

at a temperature outside this range may adversely affect

Make sure that the contact load is within the specified range;

Miniature SignoatlhRerewlaisyes, –thEeAl2if/eEtiBm2e Soefritehse contacts will be shortened

insulation or contact performance.

- If the relay is used for a long period of time in highly humid

considerably.

(RH 85% or higher) environment, moisture may be absorbed

Note that the running performance shown is an example,

Notes on Using Relays and that it varies depending on parameters such as the

type of load, switching frequency, driver circuit, and

into the relay. This moisture may react with the NOx and

SOx generated by glow discharges that occur when the

contacts are opened or closed, producing nitric or sulfuric

ambient temperature under the actual operating conditions.

1. Contact LEovaaludate the performance by using the actual circuit before

acid. If this happens, the acid produced may corrode the

metallic parts of the relay, causing operational malfunction.

Make suu2.sreiDnrgtivhtihnaegtrretehllaaeyy.scontact load is within the specified rang-aenI;fdaontsyhiliemcoranwteirsibaeal s,ceotdhnteaicnloiinfaegtitnisgmiliceomnoat(fesrtilihiacleo)ncirsoubnbuteasrec,dstsiliciwnonilltohbiel,e shortened considerably.

Note tha- tIf tthheeinrutenrnnailncgonpneecrtfioonrmdiaagnracme osfhaorwelany isshoawns e+xaanmd -ple, annedightbhoarhtoiot dvaofrireeslayd, ethpeerendisinsgomoenpposasribailmityettheartsthseusech as the type of load,

switchinsgymfrbeolqsueonn cthye, cdoriilv, aeprpclyirtcheuirta,teadnvdolatamgebtioetnhtetreemlaypienraturmeautenridalesrwtilhl eemaitcstiulicaolnogpaes rthaattinwgill cpoennedtriatitoe nthse. relay. In

the specified direction. If a rippled DC current source is

this case, the switching contact may generate silicon

used, abnormalities such as beat at the coil may occur.

2. Driving R-eTlhaeymsaximum voltage that can be applied to the coil of the

compounds on the surface of contacts. This silicon

compound may result in contact failure. Avoid use of relay in

relay varies depending on the ambient temperature.

such an environment.

• If theGinetneerranllay,l cthoenhnigehcetrionthedivaogltargaemapopfliaedretolatyheschooil,wtshe+ and- -Bseycmaubseolsthoen tohpeeractoinigl, atpempplyertahtuereratreandgevolvtaargiees to the relay in the

specisfiheodrtedr irtehectioopner.aItfinag rtiimppe.leNdoDte,Chcouwerrveern, t tshaoturacehigish usedd,epaebnndiongrmonatlhiteiehsumsiudcityh, uasse thheearetlaayt itnhtehectoemil pmeraayturoeccur.

voltage also increases the bounce of the contacts and

range illustrated in the figure below. Prevent the relay from

• The mthaexcimonutamct voopletnaingge athndatccloasningbefreaqpupenlicey,d wtohicthh emcaoyil of tbheeingrefrloazyenvaanrdieasvodidetpheegnednienrgatioonnotfhceonademnsbaiteionnt. temperature. Generally, the

highesrhtohrteenvtoheltlaifegteimae pofptlhiee dcotnotacthtse. coil, the shorter the operating time. Note, however, that high voltage also increases the bounce

of the-facIlflsothngertaaddcuritavsilnlyga, tnvhodeltiatnhgheeerwecnaotvnpeeftoarfromcrtmooafpntcheeenorinef ltgahyeacrneolidal yrcismleoassyainnnodgt frequency88, 05which may shorten the lifetime of the contacts.

•

For

cobensfuislltyenretaolizpeed.raMtiaokne, sthuree dthraivt inthge vvoollttaaggeewsahvoefuorldm

instantaneously rises and falls as a pulse.

have rise

Humidity

a6n0d

fall

times

of

less

than

1

ms.

(%RH) 40

Nominal

coil voltage

20

5

0

-60 -40 -20 0 20 40 60 80 100

Temperature (°C )

<1msec.

<1msec.

- The relay maintains constant sealability under normal

• For a latching relay, apply a voltage to the coil accordingabettmodoetshgprehaedpreicodlpoarrersitthsyeursreepl(a8ey1c0miftaioeyd1b,e2in0d0ethhfoperam)i.endIttsearsnnedaamlal abclifloiutynncnmtieoanyction diagram of the relay.

• If a cu- rFroernatlaistchainpgprleielady, taopptlhyea cvooltialgoevteorthae lcoonil gacpcoerdriinogdtoof timief ,itthise ucsoeidl tuenmdeprebraartoumreetrricisecosn,dpitiroonms oexticnegedginegnteheration of organic gas inside

the polarity specified in the internal connection diagram of

specified range.

the rethlaeyr,elwayh. ich may result in faulty contacts. In this case- ,Tuhesesaomfeaaplapltiecshiwnhgenrethlae yreilasyriescsotomredmoerntrdaensdp.orted.

• The o-thpIefeacraociutlirntreegmntptiiesmraaetpupraleienrddisteorset,hlpeeraocmosielootitnviegmr geaelnionenrdgaitpcioeanrtioeodf toohfregtiamtnieimc, e reKrqeeulaeiypreitsdheefxouppropseeeard-lcimahfittecrvoaitnluitsearoceftmtthooevectdelomfrspoeemraatthufetreecrtaotrhtowenhivbchooxltthtaoege has been applied to or

removgaesdinfsroidme ththe ereclaoy,ilw. hHicohwmeavyerre,sbulet cinafuauslety tchoentarcetsla. yInhas awitmhine5c0h°aCn. ical structure, a bounce state exists at the end of the operating

and rethlies acassee,tuimseeosf .aFlautcrhtihngerremlaoyries ,rebcoemcmauensdeeda.dditional time- iPserrmeaqnueinrtemdaugnnettisl tahreeucsoedntian cptolsatraizebdilirzeelasysa. fFtoerrthbiseing in a high-resistance

state,-recqTauhriereedompfoeurrasettaincbghectiomtanetkaecatnntdowcrehloleesaensaeuftestirimnthegeitnvhodelitcaagrteeelhathayes abtetimehenigh

sprloeecaaestoednds, .nwehaerbny

magnets,

the relay

transformers,

characteristics

or speakers

may change

are

and

applied to or removed from the coil. However, because the

faulty operations may result.

3. OperatinrgelaEynhvaisroanmmecehnantical structure, a bounce state exists at

the end of the operating and release times. Furthermore,

- If excessive vibration or shock is applied to the relay, it may

malfunction and the contacts remain closed. Vibration or

• Makebsecuaruesethaadtdtihtioenarel latimyemoisunretqeudireind thunetilapthpeliccaotnitoanct set isshoucskedapwpliiethd intoththee srpeleaycifdieurdingteompepreatriaontumreayracnagusee. Use of a relay at a

tempestraabtiluizrees aofutetrsbideiengtihnisa hriagnh-greesismtaancyeasdtavtee,rcsaerelymausfftebcet insucolantsiiodenraobrlecdoanmtaagcettopoerrwfoeramrinagnocf teh.e contacts. Note that

taken when using the relay at high speeds.

operation of a snap switch mounted close to the relay or

• If the3r.eOlapeyraistinugseenvdirofonmr eantlong period of time in highly humsihdoc(kRdHue8t5o%theoorpheirgathioenr)ofemnavgirnoenticmseolnetn,omid omiasytuarlesomay be absorbed into the

relay.-uTsMehadiksweimtshuionreisthttheuartseptheemcifriaeelydaytreemmaopcuentratwetudirteihnrttahhneegeaN.ppUOlsicexatoiaofnnadsreeStlaiOsy x gecnaeusreatmeadlfubnyctigonloinwg. discharges that occur when the contacts are opened or

closed, producing nitric or sulfuric acid. If this happens, the acid produced may corrode the metallic parts of the relay, causing

operational malfunction.

13

• If any material containing silicon (silicon rubber, silicon oil, and silicon based coating material) is used in the neighborhood of

relay, there is some possibility that these materials will emit silicon gas that will penetrate the relay. In this case, the switching

contact may generate silicon compounds on the surface of contacts. This silicon compound may result in contact failure. Avoid

use of relay in such an environment.

●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data.

●Please request for a specification sheet for detailed product data prior to the purchase.

●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.

2007.08.03 P0886EMDD03VOL01E

© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com

R7001_EA2_EB2 • 2/27/2014 13

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