tdk磁芯资料图片

1CONTENTSIntroduction..............................................................................3TDKFerriteCoresinSwitchingPowerSupplies......................4SelectedItemsofLegend........................................................5MaterialCharacteristics...........................................................6PARTIECores...................................................................................21EICores...................................................................................22EEandEFCores.....................................................................24EEandEIBobbins...................................................................28EERCores...............................................................................32EERBobbins...........................................................................34ETDandECCores..................................................................36ETDandECBobbins...............................................................38OriginalTDKCores................................................................41PQCores.................................................................................42PQBobbins..............................................................................44LPCoresandBobbins.............................................................46EPCCores...............................................................................48EPCBobbinsandAccessories................................................50EPCoresandBobbins............................................................52RMCores................................................................................55RMCores.................................................................................56RMBobbins.............................................................................58SMDCores..............................................................................61SMDCoresandBobbins.........................................................62ET,UUandFTCores.............................................................65ETandUUcores.....................................................................66FTCores..................................................................................67TCores...................................................................................69ToroidalCores(ForCommonModeChoke)............................70ToroidalCores(ForGeneralUse)...........................................72PARTIITechnicalData.......................................................................77EICores...................................................................................78EECores.................................................................................91EERCores...............................................................................101ETDCores...............................................................................108PQCores.................................................................................115LPCores..................................................................................124RMCores.................................................................................127EPCCores...............................................................................134MaximumNumberofTurnsonBobbins..............................143WireTable...............................................................................147Theinformationincludedinthisbookissubjecttochangewithoutnoticeresultingfromtechnicaldevelopmentsandproductimprovements.Specificationswhichprovidemoredetailsfortheproperandsafeuseofthedescribedproductareavailableuponrequest.3IntroductionSinceitsoutsetin1935,inthewakeoftheinventionofferrite,TDKhasaimedtodevelopitsworldleadingelectronictechnologyinbothmaterialdevelopmentandproduction.Thisaccumulatedexpertiseinfinestructuralcontroltechnologyhasresultedinhighperformanceferritecomponents.Thesecomponentshaverecentlybeeningreaterdemandforelectronicequipmentrequiringreductioninsizeandweight.TDKFerriteDivisionengineershavesuccessfullyexploredeveryavenueofhighperformanceferrites,aimingtoproduceself-containedenergysourcesformicroelectronicequipment.Tothisend,TDKhasdevelopedhighfrequencypowerferrite,suchasPC33,PC40,PC44,PC45,PC46,PC47andPC50thatareidentifiablebytheirexcellentmagneticcharacteristics.ItisthesehighreliabilityferritecomponentsthathavelargelycontributedtoreducingthesizeofswitchingpowersuppliesandDCtoDCConvertersformicro-electronicequipment.OtherTDKendeavorsdeservingmentionareferriteforEMIfiltersandcommonmodechokeswithexcellentfrequencycharacteristics.NotonlyhaveTDK’sresearchersovercomethetheoreticallimitingvalueofthehighµmaterial’soperatingfre-quency,buttheyhavealsosucceededindevelopinganewmaterialHS72andHS10thosearecharacterizedbyitshighimpedanceathighfrequencies.Inorderforyoutotakefulladvantageoftheseandothermaterialsshowninthisbooklet,TDKhasdevelopedarangeofcoresandaccessoriestomeettheneedformi