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1、GREENDESIGNINELECTRONICSDesignforLow-HalogenGreenElectronicsDr.TamimP.SidikiDSMEngineeringPlasticsSittard,TheNetherlandsDr.RobertD.HiltyTycoElectronicsHarrisburg,Pennsylvania,USAAbstractGreenDesignhasrecentlygainedsignificantinterestintheelectronicsindustryallove
2、rtheworldandwillremainoneofthehottesttopicsfortheupcomingyears.Besidesreductionofconsumedenergy,OriginalEquipmentManufacturers(OEMs)areincreasinglyrestrictingtheuseofcertainhalogensasflameretardantsubstancesinplastics.Forsomelow-tomid-temperaturethermoplastics,ha
3、logen-freesolutionsofcomparableperformancearecommerciallyavailable.However,forcertainhigh-temperatureplastics,whicharetypicallyusedinconnectorsandsockets,theremaybenodrop-insolutionthatmeetstheengineeringandcosttargets.Further,thesenewmaterialsrequirere-qualifica
4、tionofconnectorsandtypicallyneednewcapitalexpendituresformoldtoolingtoaccountforchangesinprocessingandshrinkage.IncertainareasOEMsandconnectormanufacturersmayfaceasignificantimpactonprocessingorelectricalandmechanicalperformanceaswellasonthetotalsystemcost.Inthis
5、paperwereviewthecurrentindustrystatuswithrespecttotheintroductionofhalogen-freeplasticsandwilldiscussvariousoptionstoimplementGreenDesignsolutions.Thesealternativesallowasignificantreductionoreliminationofhalogenswithoutjeopardizingproductperformance,safetyorcost
6、;insomecases,thematerialsimilaritywillreduceconnectorre-qualificationorretoolingcosts.TheconceptofGreenDesignisderivedfromtheIEC62368standard,whichiscurrentlybeingdiscussedasaglobalstandardwithintheelectronicsindustrycoveringaudio/videoandIT-equipment.Introductio
7、nMaterialsusedforenclosures,structuralpartsandinsulatorsusedinElectronicsneedtocomplywithUnderwriterLaboratory(UL94)flameretardancetestsandfulfillcertainselfextinguishingcharacteristicsdefinedasV-0,V-1,V-2,HB.OriginalEquipmentManufacturers(OEM)andconnectormanufac
8、turersformanyyearshavebeenspecifyingplasticmaterials,toconformtomeettheUL94-V0flammabilitystandardforplastics,forconnectorsandsockets.Thisgenericspecificatione