3R-8

DATASHEETGASTUBE–3RM/PXXXL(M)-8SERIESFEATURESProvideultra-fastresponsetosurgevoltagefromslow-risingsurgeof100V/storapid-risingsurgeof1KV/ȝs.Stablebreakdownvoltage.Highinsulationresistance.Lowcapacitance(2pF).Highholdovervoltage.Largeabsorbingtransientcurrentcapability.APPLICATIONRepeaters,Modems.TelephoneInterface,Linecards.Datacommunicationequipment.Linetestequipment.PARTNUMBERCODESize:8mm*10mmMicro-GapDesignElectrodeNumbers3R:3ElectrodesBKBrandNameElectricalCharacteristicsM:10KAP:20KADCVoltageLeadTypeL:LeadDimensions8:8.0mm*10.0mmSpark-overM:SMDF:failsafePACKAGEDIMENSIONSDimensionItemsSpec.ToleranceD8.0+0.2,-0.8T10.0±0.5T113.4±0.8L15.0±0.5S4.4±0.4d1.0±0.05R19.8±0.4R28.1±0.3DimensionItemsSpec.ToleranceD8.0+0.2,-0.8T10.0±0.5T11.5±0.2B1.4±0.3L-FTYPEMTYPELTYPEELECTRICALCHARACTERISTICNote:ImpulsedischargecurrentforGDTisthetotalcurrentequallydividedbetweeneachlinetogroundDCSpark-overVoltageMaximumImpulseSpark-overVoltageNominalImpulseDischargeCurrentAlternatingDischargeCurrentImpulseLifeMinimumInsulationResistanceMaximumCapacitance100V/s1000V/μs8/20μs,10times50Hz,1sec10/1000μs,100ATestVoltage1MHzPartNumber(V)(V)(KA)(A)(times)DC(V)(GΩ)(pF)DeviceMarkingCode3RM075L-83RM075M-875±20%7001010300251.02.03RM075-83RM090L-83RM090M-890±20%7001010300501.02.03RM090-83RM150L-83RM150M-8150±20%70010103001001.02.03RM150-83RM200L-83RM200M-8200±20%70010103001001.02.03RM200-83RM230L-83RM230M-8230±20%70010103001001.02.03RM230-83RM350L-83RM350M-8350±20%85010103001001.02.03RM350-83RM400L-83RM400M-8400±20%85010103001001.02.03RM400-83RM470L-83RM470M-8470±20%95010103002501.02.03RM470-83RM600L-83RM600M-8600±20%130010103002501.02.03RM600-83RM800L-83RM800M-8800±20%150010103002501.02.03RM800-83RP075L-83RP075M-875±20%7002020300251.02.03RP075-83RP090L-83RP090M-890±20%7002020300501.02.03RP090-83RP150L-83RP150M-8150±20%70020203001001.02.03RP150-83RP200L-83RP200M-8200±20%70020203001001.02.03RP200-83RP230L-83RP230M-8230±20%70020203001001.02.03RP230-83RP350L-83RP350M-8350±20%85020203001001.02.03RP350-83RP400L-83RP400M-8400±20%85020203001001.02.03RP400-83RP470L-83RP470M-8470±20%95020203002501.02.03RP470-83RP600L-83RP600M-8600±20%130020203002501.02.03RP600-83RP800L-83RP800M-8800±20%150020203002501.02.03RP800-8ELECTRICALRATINGItemTestCondition/DescriptionRequirementDCSpark-overVoltageThevoltageismeasuredwithalowrateofrisedv/dt=100V/sMaximumImpulseSpark-overVoltageThemaximumimpulsebreakdownvoltageismeasuredwitharisetimeofdv/dt=1000V/sImpulseDischargeCurrentAlternatingDischargeCurrentInsulationResistanceTheresistanceofgastubeshallbemeasuredeachterminaleachotherterminal.pleaseseeabovespecCapacitanceThecapacitanceofgastubeshallbemeasuredeachterminaltoeachotherterminal.Testfrequency:1MHzTomeetthespecifiedvalueThemaximumcurrentapplyingawaveformof8/20ȝsthatcanbeappliedacrosstheterminalsofthegastubewithoutcausingthemorethan±25%fromitsinitialmeasuredDCbreakdownvoltage.Dwelltimebetweenpulsesis3minutes.gastubetochangeRatedRMSvalueofACcurrentat50Hz,1sec.10times.Intervals:3min.DCbreakdownvoltagemaynotchangemorethan±25%fromitsinitialmeasuredDCbreakdownvoltage.IR108ohms(-20%,+30%for70–90V).