1 usedinhighpowerapplication largepermissibledccurrent idealforcomputersandportablepowerdevices, dc-dcconverters,energystorageapplications rohscompliantversionsareavailable operatingtemperature-45cto+95c andinput-outputfilterapplications 1. inductanceistestedat100khz,0.1vrms,0adc. notes: 2.saturationcurrent,isat,isthecurrentatwhichtheinductanceofthecomponentdropsby20%typicalatan 3.heatingcurrent,i,isthedccurrentrequiredtoraisetheparttemperaturebyapproximately40c. dc theheatingcurrent thickness,airflowandothercoolingprovisionsallaffecttheparttemperature.parttemperatureshouldbeverifi ed temperatureunderworstcaseoperatingconditions.circuitdesign,componentplacement,pwbtracesizeand intheendapplication. 4.theparttemperature(ambienttemperature+temperaturerise)shouldnotexceedtheupperlimitoftheoperating temperatureof25c. ambient isdeterminedbymountingthecomponentonatypicalpcbandapplyingcurrentfor30minutes. part number part number rohs typ 2 3 (htyp) m inductance marking (xxxy) @irated isat(a) saturation current i(a) dc heating current ris1344a-351m RIS1344A-651M ris1344a-112m 40 351m 28 32 651m 21.5 24 112m 19 0.35 0.65 1.10 0.28 0.52 0.88 40 32 24 1.30 2.30 3.60 1.80 2.80 ris1344a-351mf RIS1344A-651Mf ris1344a-112mf irated (a) dcr(m) w max 1 (h20%) m inductance @0a dc 4.20 es25 lectricalpecification@ c e&emagneticproductslimited ris1344aseries lowprofile highcurrentpowerinductors 2/fblocka,94tokwawanroad,kowloon,hongkong tel:(852)27653888 fax:(852)29543304 revisedin12/07 pi143(01)
s chematics 2 s chematics md echanicalimensions 5.alldimensionsarespecifiedinwithhigherprecedenceinmm. inches mm .010 0.25 notes: 6.u. nlessotherwisespecified,alltolerancesare 7. foravailablerohspartnumber,thepartwillbemarkedwith?xxxyf?,insteadof?xxxy?. formoreinformation,pleasecontact headquarter 2/fblocka,meritindustrialcentre, 94tokwawanroad,kowloon, hongkong tel:(852)27653888 fax:(852)29543304 email:eempl@eleceltek.com website:http://www.eleceltek.com informationhereinisforreferenceonlyandsubjecttochangewithoutnotice.itdoesnotconstituteanyrepresenta tion,warrantyorcommitmentofthecompanyinrespect oftheproductsinanyaspect.alllogos,brandsandproductnamesmentionedhereinaretrademarksorregisteredtrad emarksoftheirrespectiveowners.thecompany doesnotassumeanyliabilityarisingoutoftheapplicationoruseofanyproductorcircuitdescribedherein.copyri ghts2006,e&emagneticproductslimited. 1 2 tape&reel:800/reel weight(ingram):3.5typ. recommended padlayout .612 15.55 gaugeplaneor referenceplane .512 13.00 max 1344a xxxy (date) .165 4.20 typ .551 14.00 max .173 4.40 max .205 5.20 .197 5.00 2x e&emagneticproductslimited ris1344aseries lowprofile highcurrentpowerinductors 2/fblocka,94tokwawanroad,kowloon,hongkong tel:(852)27653888 fax:(852)29543304 revisedin12/07 pi143(01)
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