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首页 贴片电阻常见封装

贴片电阻常见封装.doc

贴片电阻常见封装

徐坤厚
2017-09-29 0人阅读 举报 0 0 暂无简介

简介:本文档为《贴片电阻常见封装doc》,可适用于综合领域

贴片电阻常见封装贴片电阻常见封装有种用两种尺寸代码来表示。一种尺寸代码是由位数字表示的EIA(美国电子工业协会)代码前两位与后两位分别表示电阻的长与宽以英寸为单位。我们常说的封装就是指英制代码。另一种是米制代码也由位数字表示其单位为毫米。下表列出贴片电阻封装英制和公制的关系及详细的尺寸:英公长宽高ab制制(L)(W)(t)(inch)(mm)(mm)(mm)(mm)(mm)(mm)贴片元件的封装一、零件规格:(a)、零件规格即零件的外形尺寸SMT发展至今业界为方便作业已经形成了一个标准零件系列各家零件供货商皆是按这一标准制造。标准零件之尺寸规格有英制与公制两种表示方法如下表英制表示法公制表示法含义L:inch(mm)W:inch(mm)L:inch(mm)W:inch(mm)L:inch(mm)W:inch(mm)L:inch(mm)W:inch(mm)注:a、L(Length):长度W(Width):宽度inch:英寸b、inch=mm(b)、在()中未提及零件的厚度在这一点上因零件不同而有所差异在生产时应以实际量测为准。(c)、以上所讲的主要是针对电子产品中用量最大的电阻(排阻)和电容(排容)其它如电感、二极管、晶体管等等因用量较小且形状也多种多样在此不作讨论。(d)、SMT发展至今随着电子产品集成度的不断提高标准零件逐步向微型化发展如今最小的标准零件已经到了。二、常用元件封装)电阻:最为常见的有、两类不同的是它可以以排阻的身份出现四位、八位都有具体封装样式可参照MD仿真版也可以到设计所内部PCB库查询。注:ABCD四类型的封装形式则为其具体尺寸,标注形式为LXSXH具体尺寸与电解电容B类类型相同具体尺寸:XX(公制表示法)具体尺寸:XX(公制表示法))电阻的命名方法、精度的命名:RS–KJT、,精度的命名:RS–KFTR,表示电阻S,表示功率是W、是W、是W、是W、是W、是W、是W、是W。,表示尺寸(英寸):表示、表示、表示、表示、表示、表示、表示、表示。K,表示温度系数为PPM。,,精度阻值表示法:前两位表示有效数字第三位表示有多少个零基本单位是Ω,Ω,KΩ。是,阻值表示法:前三位表示有效数字第四位表示有多少个零基本单位是Ω,Ω,KΩ。J,表示精度为,、F,表示精度为,。T,表示编带包装)电容:可分为无极性和有极性两类:无极性电容下述两类封装最为常见即、有lineofthebusthroughthelistofmadeamoredetailedprovisions,applymoreoperationalSevenisincreasedthearticle,inviolationoftherelevantprovisionsofthe,toparticipateinpublicfundstopayfordinner,highconsumptionofentertainment,fitnessactivitiesandpublicfundstobuygift,sendgiftstomaketheprovisionsofthedispositionOntheviolationofthecentralprovisionsofthespiritoftheeight,inadditionto><newregulationsinto"violationofhonestyandselfdiscipline"misconductoutside,isdifferentwiththeoriginal<Regulations>,revised<rule>clearlydefinednotonlytodispositionofthedirectlyresponsiblepersons,butalsodisposeofcollarGuideresponsibilities()increasedtradingrights,useofauthorityorpositioninfluenceasrelativesandclosetoprofitviolationofthetermsofthe<NewRegulations>absorption<cleanpoliticsseveralguidelines>therelevantprovisionsspirit,increasethe"negativelist,includingtradingrights,thefunctionsandpowersordutiesofinfluenceasrelativesandstaffaroundprofitIncreaseArticle"mutualuseofofficeorauthorityringforeachotherandtheirspouses,childrenandtheirspousesandotherrelatives,aroundpersonnelandotherspecificrelationshipbetweenthepeopletoseekbenefitsengageintradingrights,givenawarningorseriouswarningSanctionsifthecircumstancesarerelativelyserious,givingremovedfromorplacedonprobationwithinthepartypostifthecircumstancesareserious,shallbeexpelledfromthepartyIncreaseArticle"connivance,acquiescencetothespouse,childrenandspouseetcrelativesandstaffaroundtheeffectofPartymembersandcadrespersonalauthorityorpositionforpersonalgain,ifthecircumstancesarerelativelyminor,givenawarningoraseriouswarningifthecircumstancesarerelativelyserious,givingremovedfromorplacedonprobationwithinthepartypostifthecircumstancesareserious,thegivenExpelledfromthepartyPartymembersandcadresofthespouses,childrenandtheirspousesdoestheactualworkandgetsalaryoralthoughtheactualworkbuttoreceivesignificantlybeyondthesameranksalarystandard,Partymembersandcadresinformedfailstocorrect,inaccordancewiththeprovisionsoftheprecedingparagraph"()aboutthegifts,giftsmisconductfromhandlingpracticesinrecentyears,engagedinofficialcadresreceivedgifts,giftsproblemsmoreprominentThishasseriouslyaffectedtheimageofPartymembersandcadres,damagedtherelationsbetweenthepartyandthemasses,andisahotbedofcorruption,isreallynecessaryforthiskindofbehaviortobedisciplined<rule>noonacceptinggifts,gifts,Cardconsumptionbehaviortoengageinsimple"onesizefitsall",butthedifferencebetweenthedifferentseparatelyOneisinaccordancewiththeprovisionsofArticle,acceptingmayaffecttheimpartialenforcementoftheofficialgifts,gifts,consumercardstodependingontheseriousnessofthecaseshallbegivendisciplinarysanctionsThatistosay,formayaffectthefairexecutionofbusinessgifts,gifts,consumercardsarenotallowedtoacceptisinaccordancewiththeprovisionsofArticle,acceptingwassignificantlyhigherthannormalceremonyisstillexchangesofgifts,gifts,consumercardtodisciplinaryactionThisisnewregulationsthatdailylifeispurelyreciprocity,acceptingthesamething,boys,fellowfriendsgifts,gifts,shoppingcards,althoughandfairexecutionofbusinesshasnothingtodo,alsowanttoasthecaseshallbedealtwith,thesituationisobviouslybeyondnormalreciprocity"Thesocalled"reciprocity",oneisemphasizesthereciprocalinprotocolInotherwordsisyoutomehow,Itoyouhow,notonlydoesnotgoThesecondistosignificantlyexceededthenormallocaleconomylevel,customsandhabits,economiccapacityofindividualgifts,giftvalueSpecificsanctionstoaccordingtotheprocessingofavarietyoffactorstoconsider,asappropriateThethirdistherootaccordingtotheprovisionsofArticle,"toEngagedinpublicservicepersonnelandtheirspousesandchildren,children'sspousesandotherrelativesandotherspecificrelationshippresentedMingXianchaonormalreciprocityofgifts,gifts,consumercard,ifthecircumstancesarerelativelyserious,givenawarninguntilprobation"Inaccordancewiththeaboveprovisions,giftgivingsignificantlybeyondthenormalreciprocity,giverconstitutethediscipline()onillegaltradingofstocksorofotherregulationsofsecuritiesinvestment<>ArticleisengagedinpunishmentregulationofcampandactivityinviolationoftherelevantprovisionsonAmongthem,will"buyingandsellingstocksorinothersecuritiesinvestment"columnasoneofdisciplinarycasesOutFirstneedtobeclear,><regulationsdidnotchangetheprovisionsoftheOrdinanceTheordinanceoftheprovisionsofthesecondparagraphofArticleprovisions"who,inviolationoftheprovisionsofthesaleofstocks"isoneoftheviolation,andatthebeginningofthefirstparagraphofthisarticle"violationofagainsttherelevantprovisionsofthe"textualrepresentationoftherepeatrevisionIn,justfromthelegislativetechniqueremovedthe"personal"inviolationoftheprovisions,contentandnottochangetheoriginalprovisionsNeedtoclearis,"buyorsellastockorofothersecuritiesinvestment"referstoviolationoftherelevantprovisionsreferstoinApril,thePartyCentralCommittee,theStateCouncilpromulgatedtheOntheworkofthepartyandgovernmentorgansstaff'spersonalinvestmentinsecuritiesifdryprovisions>AccordingtotheprovisionsofArticle,useofworktime,officefacilities,thesaleofstocksandsecuritiesinvestmentfundbelongstoillegalbehaviorThefourthquestion,abouttheviolationofthemassesofthedisciplinaryactions<newregulations>wouldviolatepublicdisciplinebehaviorofasinglesetofaclassofrestored"threerulesofdisciplineandeightnote"inthedisciplineofthemassesofexcellenttraditional<NewRegulations>Chapter"toviolatethemassesofdisciplinaryaction",mainlythedestructionoftheparty'sclosetieswiththemassesofmisconductmadeprovisionsondisciplinaryenrichandperfectthesuperstandard,beyondthescopeofXiangQun<Alltoraisefundandlabor,inforinvolvingthepublicaffairsdeliberately,chinakayao,insocialsecurity,policysupport,disasterrelieffundsandmaterialsandothermattersassignedanykindandaffectionatefriends,obviouslyunfairactsagainsttheinterestsofthemassesofthedisciplinarytermsincreasethetermsnotinaccordancewiththeprovisionsofthepublicpartyprovided,government,factoryandvillage(neighborhood)providedetcviolationofthepeople'srighttoknowthebehaviorofthedisciplineThefifthissue,ontheviolationofworkdisciplineviolationofworkdisciplineadded"negativelist,includingPartyorganizationscarryoutstrictlyMainresponsibilityforpoordisciplineterms()thenewpartyorganizationcomprehensivestrictlythemainresponsibilityofthepartydoesnotfulfilltheorperformpoordisciplinaryterms<NewRegulations>hasaleadpeopletopayattentiontothenewterms,thatis,inchapterten"ontheviolationofworkdisciplinebehaviorpunishment"increaseintheonehundredandfourteenth"partyfailtoperformcomprehensivestrictlythemainresponsibilityofthepartyortoperformcomprehensivestrictlythemainresponsibilityforadministeringtheineffective,resultinginseriousdamageorseriousadverseeffects,tothepersondirectlyresponsibleandtheresponsibilityofleadershipandgiveawarningorseriouswarningThesituationisserious,givingremovedfromtheirpartypostsoronprobationPunishment"HerethechangesForthefirsttime,themainresponsibilitywrite<rule>()newshallreportdoesnotreportorfalsereportingdisciplineshallincreasethebar"inthehigherlevelunitstochecktoinspecttheworkorreporttotheparentunit,workreportofshallreportthemattersdonotreportordonotreport,causeseriousdamageorseriousadverseeffectsof,tothepersondirectlyresponsibleandtheresponsibilityofleadership,togivewarningoraseriouswarningifthecircumstancesareserious,givingremovedfromtheirpartypostsorplacedonprobation"Forexample,duringthetourvisitstotheregion,theunitMemberstheobligationtotheinspectionteamstoreflectthetruesituation,toconcealnotreportedorintentionallytotheinspectionteamstoprovidefalseinformation,causingseriousdamageorseriousadverseeffectsof,thepersondirectlyresponsibleandtheresponsibilityofleadershipshouldbeinaccordancewiththeprovisionsof<rule>Articletogivetheappropriatepunishment()thenewnotgrantedinaccordancewiththeprovisionsofpunishment,notaccordingtotheprovisionsoftheimplementationofdisciplinarymeasuresviolationoftheprovisionsofArticle"Partyorganizationshaveoneofthefollowingcircumstances,thedirectleadershipresponsibilityProbation:membersweresentencedpunished,inaccordancewiththeprovisionsgivedisciplinaryactionorinviolationofstatelawRulesofbehaviorshouldbegivendisciplinarypunishmentanddisposeofdisciplinarypunishmentbydecisionorcomplaintreviewthedecisionmade,notinaccordancewiththeprovisionsoftheimplementationdecisionsonpunishmentoftheparty,position,rank,andthetreatmentofthemattersPartymemberssubjecttodisciplinaryaction,notinaccordancewiththecadremanagementauthorityandorganizationalrelationshipsofbydisposeofPartymemberstocarryouteducationandsupervisionofdailymanagement"Whatneedstobepointedoutis,"cliff"demotedwithcars,housing,secretaryproblem,implementationisnotadisciplineandpartypostsandrankstreatmentbytheorganizationdepartmentisresponsiblefortheimplementation,withcars,housingbythelogisticsdepartmentisresponsiblefortheimplementationof,JiCommissionresponsibleoversightresponsibilitiesThesixquestions,abouttheactsviolatingthedisciplineoflife"inviolationofdisciplineoflifebehaviorpunishment",mainlyto"fourwinds"problemsandaseriousviolationofsocialmorality,familyvirtueactsofmisconductmadeprovisionsondisciplinary,anincreaseofextravagantlife,contrarytothesocialpublicorderandgoodcustomsdisciplinarytermsWorthmentioningis,><RegulationsinArticleabout"adultery""mistress(Cardiff)formulationinthenew<rule>isremoved,toexpandthescopeofArticleprovisions"andothershairimpropersexualrelations,letfacedisciplinaryactionWidermorestrictFour,andearnestlydoagoodjobinthe<code>and<rule>implementsystemoflifeliesinexecution<code>and<Regulations>isPartyorganizationsatalllevelsofastrongconstraintandallPartymembersfollowLearningandimplementingthe<code>and<rule>ispartycommittees(party),commissionfordiscipline,disciplineinspectiongroup),themajorityofPartymembersandcadresofthecommonresponsibility,mustpartycaughttogether,thepartyoneexecution()Partycommittees(party)andplayandimplementcomprehensivestrictlythemainresponsibility,paysspecialattentiontothetwopartyregulationslearningcrosspenetrationOneistoAdheretothepartyconstitutionisfundamentaltofollow,andresolutelysafeguardtheauthorityofthePartyChapterThesecondistoadheretotheproblemoriented,tostrictlypoliticaldisciplineandpoliticalrulemomentsinthefirstplaceThethirdistoadheretothedisciplineandrulesquiteinfrontmustnotallowthebottomlinetobreakthedisciplineThefourthistoseriouslyorganizethestudyofpropagandaandeducation,inthecitypartymemberstocreateadisciplined,abouttherulesofthestrongatmosphere(II)CommissionforDisciplineInspectionatalllevels(DisciplineInspectionGroup)toanimportantbasisfortherevisedtwopartyregulationsas,adheretoeasilyblame,strengthensupervisionandenforcementAndearlymethodincombiningJi,increaseaccountabilityeffortsOneistotworegulationswithinthepartyimportantbasis,adheretothepartyconstitutionduties,withstrictdisciplinetomaintaintheconstitutionauthorityThesecondistoadheretohighstandardsandkeepthebottomline,adheretoJiYaninlawanddiscipline,thedisciplineandrulesquiteinfront,graspinggraspingsmall,easilyblame,comprehensiveuseofsupervisionanddisciplineof"fourkindsofform"inthedisciplineembodiesthestrictrequirementsandcareforthediscipline,tightenup,YanAccordingtodisciplineinaccordancewithregulationstocarryoutdisciplinaryreviewIncreasetheviolationspunishment,cluescaninitiateaninvestigationonthetrialofcasesAccordingtothedisciplineontheprovisionsoftheproportionofprocessingandcontrolmanagermaintainsdisciplineTofocusoninvestigatingnonconvergence,don'taccepthandseriousdisciplinaryviolationsatthesametime,paymoreattentiontothegeneralreviewofdisciplinebehavior,andgraduallyincreasethelighterpunishmentFouristoilluminatetwopartyregulations,combinedwiththelocaldistrictoftheDepartmentofpartyconductLianzhengtorelevantlawsandregulationssystemclean,timelyresearchproposestoestablish,change,wastereleaseopinion,avoidconflict,andthefastensystemofcage,andgraduallyformednotrot,notrot,notwanttorotsystemandworkingmechanism()theleadershipofthepartymembersandcadresshouldplayanexemplaryroleTherateofhigherconsciousnessofthefrontoftheOrdinancetoleadpracticeselfdisciplinenorms,leadingtomaintaindisciplineofseriousnessandauthorityOneistheaboverate,demonstrationandguidance,taketheleadinlearningandmasteringthe<code>and<>therequirementsandregulations,dothedeepunderstanding,learningtouseThesecondistoplayanexemplaryroleinabidingbydisciplinerate,taketheleadinpracticingselfdisciplinenorms,firmlyestablishbeforethedisciplineareequal,thesystemhasnoprivilege,disciplineisnoexception,andconsciouslydostandards,requiremorestrictmeasuresmorepracticalThirdistoconsciouslyacceptsupervision,conscientiouslyparticipateinthedemocraticlifeanddebriefinghonestyresponsibility,suchasRealtothepartyorganizationtoreportpersonalmatters,andtoacceptthesupervisionoftheworkandlifeofthenormal,habitsunderthesupervisionoftheexerciseofpower,tocarryouttheworkThefourthistosetanexampleforthestrictenforcementofdisciplineLeadingcadresshouldtaketheleadinthemaintenanceofdisciplineofseriousnessandauthority,todaretoseriously,daretostruggle,daretooffendpeople,formisconductnotlaissezfaire,butdonotindulge,nottoleratetoensurethepartyconstitutionofpartycompassespartyputinplace()themajorityofPartymembersandcadrestosethighstandardsandholdthebottomline,consciouslyabidebythe<code>and<rule>Oneistocontrolthe<standard>and<cases>,tightCloseconnectionwiththeirownthoughts,practicalworkandlife,effortstosolvetheproblems,toenhancethestudyandimplementoftheeffectivenessandpertinenceThesecondistoestablishahighstandardandholdthebottomline,consciouslyintheselfdisciplinepursuitofhighstandards,strictlyinthepartyawayfromtheredlinediscipline,discipline,abouttherulesandknowfear,distrust,theformationofthehonorsystem,complywiththesystem,safeguardsystemofgoodhabitsRegulationsanddisciplineregulationsof<<NewRevisionoftheCommunistPartyofChinacleanfingeredselfdisciplinecriterion>and<ChineseCommunistPartyDisciplinaryRegulations>isthePartyCentralCommitteeinthenewsituationtopromotethecomprehensivestrictlyrootofthelift,theregulationsofthepartyconstructionofkeepingpacewiththetimesWeshouldstudyandimplementtheStandards>and<>astheprimarypoliticaltask,adheretothepartyconstitutionduties,adheretothedisciplineof,JiYaninlaw,thefullimplementationofsupervisionanddisciplineaccountabilityresponsibilitiesforcoordinationandpromotion"fouroverall"strategiclayoutinXXDistrictvividpracticetoprovideastrongguaranteeSiJianWu,andeffectivelyenhancetheimplementationoftheimplementationofthe<code><>TheconsciousnessofGeneralSecretaryXipointedoutthatthepartyisinchargeoftheparty,tomanagethepartystrictly,itcancuregoodpartyCriterion>and<rule>keeppacewiththetimesisourpartytoformanewpotentialstrictlyrules,todeepenunderstandingoftherulinglaw,isacomprehensivestrictly,andstrengthenthesupervisionwithinthepartyimportantgrasperCriterion>closelylinkedtothethemeofselfdiscipline,selfdisciplineintensitymodulated,focusingonmorality,forthemajorityofPartymembersandcadressettosee,feelthehighstandard,showtheCommunistsnoblemoralsentimentDistrictOrdinance<<rule>theconstitutionofdisciplineintegrationintoapoliticaldiscipline,organizationanddiscipline,honestyanddiscipline,disciplineofthemasses,workdiscipline,discipline,emphasizediscipline,focusingonestablishedrules,todrawthepartyorganizationsandPartymembersdonottouchthebottomlinePartycommittees(party)toeffectivelystrengthenthestudyandpublicizetheimplementationofthe<code>and<rule>theorganizationandleadershipofcriterion>and<>afullrange,multiangle,deeppublicity,theformationofstudyandpublicizeandimplementtheboom,inordertoconsolidatethedevelopmentofgoodpoliticalenvironmenttocreateapositiveenvironmentandatmosphereThemajorityofPartymembersandcadrestostrictrequirements,the<rule>and<Ordinancecases>asaguidetoactionandbehaviorcriterion,adheretothemoralstandardsanddisciplineofthebottomline,tomaintainthedisciplineofworshipandawe,learning,compliance,andmaintainpartydisciplineandrulesofthemodelThedisciplineinspectionandsupervisionorgansandcadrestothe<code>and<>asthedeepeningofthe"three",andstrengthensupervisionanddisciplineofaccountabilityisimportanttofollowcorrectlygrasptheuseofsupervisionanddisciplineof"fourtypes",promotethecomprehensivestrictlyinnewrootsStrictdiscipline,adheretothedisciplineandrulesquiteinfrontoftheenterpriseintheimplementationofexpensivetoimplementtoexecuteThedisciplineinspectionandsupervisionorganstoimplementthe<code>and<Effortstoinvestigatecases>asanopportunity,adheretothepartyshouldmanagethepartystrictly,seriousperformanceoftheirdutiestopromotetworegulationsimplementationChangedisciplineconceptFromthesimple"investigationofillegal"toacomprehensive"stareatviolatediscipline"fromthebusinesscasetoprosecutethebigcasesandtimelysolvethesignsoftilttoFromtheorientationtothenormalsupervisionfromthetube"minority"toresistthe"most"GuidePartymembersandcadrestoseriouslyimplementthe<code>and<rule>,consciouslyabidebythepolitical,organizational,honestpeople,work,lifesixdisciplineUrgetheleadershipcadressenttoplayanexemplaryrole,taketheleadinstrictlyenforcedRelaxationandrestStrongwindisSuJi,closelylinkedtothe"fourwinds"pronetomultiple,themassesreflectthestrongimportantnodesand,gluedtothefourwinds"newform,newtrends,seriouslyinvestigateanddealwithviolationsofthecentraleightprovisionsofthespirit,toincreasethebulletinexposureintensity,theformationofChajiu"fourwinds"loudly,continuetoreleaseanddisciplinemustbestrictsignalAtthesametime,extendedsupervisiontentacles,throughthedevelopmentoftheruralandfisherypartyconductLianzhengconstructioninspection,issuedinatimelymanner,Chajiuoccurredingrassrootssideofcorruptionandunhealthy,andearnestlysafeguardtheinterestsofthemassesandsocialstabilityThecreativityanddisciplineGraspandmakegooduseofthesupervisionanddisciplineof"fourtypes",toensurethePromotingcluestolotsofdisciplineandthelawofthevacuumtube,stricttogetherNotonlytothe"less"and"veryfew"thoroughinvestigationseverelypunished,butalsothe"most"tomaintainzerotolerancetrendthroughlayersofconductivepressure,letthedisciplineabouttherulesforeachpartymembersandcadresconsciouslyfollowAtpresent,itisnecessarytoimplementthe"list"management,strictlyfollowthecluestothedisposaloffivestandards,maketheclassificationofdisposal,dynamiccleanupZadokPartycommitteesatalllevelstoimplementthemainresponsibility,comprehensiveuseofdisciplinaryactionandtissueprocessingandothermeanstoeffectivelycurbthecommonplace,usedtoseedonotblamethe"smallproblem",notbecauseof"practice"and"exception"ProminentDisciplinecharacteristics,theproblemsofviolationofdisciplineandrulesintothefocusofsupervisionanddisciplineanddisciplinaryreviewAtthesametime,increasecasedoublechecktheintensity,theseriousproblemsofdisciplineviolationsor"fourwinds"banbutnotabsolutely,notonlytobehelddirectlyresponsible,butalsoheldleadershipresponsibilitynotonlytopursuestudiesthemainresponsibilityofthePartycommittee,andtopursueCommissionforDisciplineInspectionandsupervisionresponsibilitiesandpromoteaccountabilitytobecomethenewnormTheimplementationofsupervisoryresponsibilityMaintain<code>and<rule>theseriousnessandauthorityofthedisciplineandrulesandtrulybecometheparty'srulerDisciplineassupervisionwithinthepartythespecializedagency,wemuststrengthentheresponsibilitytoact,adheretotheImpartialdisciplineaccountability,earnestlywillbestrictdiscipline,disciplinemustbepunished,andseverelypunishtheactsinviolationofrulesandregulation
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