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FUJIPOLY37ZEBRADesignGuidelines-ConnectorsMicro-electronicsinterconnectpackagingapplicationsbytheirverynatureleaveaminimumofspaceinwhichtoassemblematingcomponents.Highreliabilityandverysmallinterconnectionswithanever-increasingnumberofIOx19sareamustifdesignobjectivesaretobemet.ZEBRAconnectorscanbefoundinmostproducttypesofthisnatureandcontinuetogainwideracceptanceasproductpackagesdecreaseinsize.Sinceeachstyleconsistsofintegralconductorsinsulatorsandself-supportstructuresthereisgenerallynoaddedcomponentryrequiredforinstallationx13thusaveryimportantby-productofhardwareandinstallationcost-effectivenesscanberealized.ASEASYAS1...2...3UsingZEBRAelastomericelectronicconnectorsrequiresonlyabrieforientationinordertoassurethatthecomponentsprovidethefinestperformancepossible.Thebasicdesignstepsconsistof1.Layoutofyourpackage2.Selecttheproperconnectorandsize3.DesignthebezelorretainerTheZEBRAconnectorwillprovideagastightseal.AdverseeffectsoftemperatureshockandvibrationatmosphericcorrosionaswellasharshchemicalenvironmentswillnotaffectLCDorPCboardcontactswhensealedthroughuseofaZEBRAconnector.HpitchLwDESIGNFEATURESANDCHARACTERISTICSENVIRONMENTALSEALINGZEBRAconnectorsarecomposedofalternatinglayersofconductiveandnon-conductivesiliconerubber.ContactdensityoftheZEBRAconnectorisgreaterthanthecontactpaddensityofeithertheLCDorPCboardmakingitanidealdesignchoice.WhenplacedbetweentheLCDandPCboardatleastoneconductivelayerwillconnectmatchedcontactpadsandatleastoneinsulatinglayerwillisolateadjacentcircuits.DIMENSIONS-TheabovefigureshowsthedimensionsoftheZEBRAconnector.ForbestoverallperformanceZEBRAconnectorsshouldbedesignedwithanaspectratioofHWequaltoorgreaterthan1.5.PHYSICALANDELECTRICALMEASUREMENTS-NOMINALMECHANICAL-FORCEDEFLECTION-Recommendeddeflectionis5to25oftheheightHdimension.TocalculateFforceinpoundsfordeflectionthefollowingformulamaybeusedForCarbonZEBRAsMetricInchesF9xDxWxLx9.8x10-3F5806xDxWxLx9.8x10-3ForSilverZEBRAsMetricInchesF10.0xDxWxLx9.8x10-3F6452xDxWxLx9.8x10-3WhereFForceNH1DeflectedheightofconnectormmorinchesDH-H1WWidthofconnectormmorinchesHLLengthofconnectormmorinchesHHeightofconnectormmorinchesRESISTANCE-TocalculatetheresistanceofZEBRAconnectorschooseoneofthefollowingformulasForCarbonZEBRAs2.37xHRohmsEwxWForSilverZEBRAsHx0.0004R0.10ohmsWxEWSOLDERLESSCONNECTIONSPressuretypecontacteliminatesleadstraighteningholedrillingandsoldering.NON-ABRASIVECONTACTSZeroinsertionforceContacttotheLCDismadebydeflectingtheZEBRAconnectorbetweentheLCDandPCboard.ZEBRAconnectorsarenon-abrasiveandwillnotdamageindiumoxidecontactpadsontheLCD.Repeatedassemblyanddisassemblyofpackagecomponentswillnotaffectperformance.ENVIRONMENTALRELIABILITYTheLCDwhenmountedwithaZEBRArubberconnectorcreatesagastightsealatthecontactinterface.Assurescontactinchemicallycorrosiveatmosphereswhileatthesametimeprotectingtheglassdisplayfromshockandvibrations.SMALLGLASSOVERHANGWithaZEBRAconnectorLCDterminaloverhangscanbeasnarrowas0.030x1d8mmpermittingmoreefficientuseofglasssizerelatedtocharacterheight.Metalpinsnormallyrequirea0.150x1d3.9mmglassoverhangreducingcharacterheightbyasmuchas0.240x1d6.1mmforadualin-lineLCD.HIGHDENSITYCONTACTZEBRAconnectorsareavailableinavarietyofcontactdensities.Themostdenseallowscontactpadspacingascloseas0.010x1d0.25mmcenter-to-center.Thisspacingcanbecomparedto0.050x1d1.3mmminimumforpinsallowingforincreasedcapacityofLCDformats.TEMPERATURERANGE-55TO260F-50CTO125C-60TO125CavailableonrequestCURRENTCARRYINGCAPACITY40ampspersquareinchofcontactpad.0.050Afor.035x.035padCONNECTIONRESISTANCETypically500to2500ohms.INSULATIONRESISTANCETypically1012ohms.DEFLECTIONFORCEREQUIRED1.5poundsperlinearinchfora0.020x1dwideZEBRA.LIFE100000hoursminimum.CONDUCTIVELAYERSupto500perinch.0.127mm0.005x1dpitch0.254mm0.010x1dcontactarea60xHRohmsCwxWHx0.01R0.10ohmsWxEWInchesWhereEwElectrodepadwidthinWConnectorwidthinHConnectorheightinInchesWhereWWidthofZEBRAinEwElectrodepadwidthinHHeightofZEBRAinMetricWhereEwElectrodepadwidthcmWConnectorwidthcmHConnectorheightcmMetricWhereWWidthofZEBRAmmEwElectrodepadwidthmmHHeightofZEBRAmm