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  <xs:element name="TransfersInOutBetweenLevels" id="belfb_TransfersInOutBetweenLevels" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
  <xs:element name="NumberOfReportableOperatingSegments" id="belfb_NumberOfReportableOperatingSegments" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="NumberOfIndustryInWhichEntityOperates" id="belfb_NumberOfIndustryInWhichEntityOperates" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ReconcilingItemAbstract" id="belfb_ReconcilingItemAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="IncomeTaxExaminationYearsNotSubjectToExamination" id="belfb_IncomeTaxExaminationYearsNotSubjectToExamination" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="PriorYearLiabilityUncertainTaxPositions" id="belfb_PriorYearLiabilityUncertainTaxPositions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="AcquiredTaxAssetsAndLiabilitiesTable" id="belfb_AcquiredTaxAssetsAndLiabilitiesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="FairValueOfInvestmentsHeldInRabbiTrust" id="belfb_FairValueOfInvestmentsHeldInRabbiTrust" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="UnrealizedGainLossOfInvestmentsHeldInRabbiTrust" id="belfb_UnrealizedGainLossOfInvestmentsHeldInRabbiTrust" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="TaxAssetsAndLiabilitiesAcquiredLineItems" id="belfb_TaxAssetsAndLiabilitiesAcquiredLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="DeferredTaxLiabilitiesPropertyPlantAndEquipmentAndIntangibles" id="belfb_DeferredTaxLiabilitiesPropertyPlantAndEquipmentAndIntangibles" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="AccruedExpensesAbstract" id="belfb_AccruedExpensesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="AccruedExpensesAndRestructuringCostsDisclosureTextBlock" id="belfb_AccruedExpensesAndRestructuringCostsDisclosureTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="AccruedSubcontractingLabor" id="belfb_AccruedSubcontractingLabor" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="ScheduleOfNetBenefitCostsAmountRecognizedInBalanceSheetAndAccumulatedOtherComprehensiveIncomeTableTextBlock" id="belfb_ScheduleOfNetBenefitCostsAmountRecognizedInBalanceSheetAndAccumulatedOtherComprehensiveIncomeTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="Non-DefinedRetirementFundMember" id="belfb_Non-DefinedRetirementFundMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="SharesHeldInPlan" id="belfb_SharesHeldInPlan" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="AccumulatedOtherComprehensiveLossAbstract" id="belfb_AccumulatedOtherComprehensiveLossAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentTaxEffect" id="belfb_AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentTaxEffect" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="AccumulatedOtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTaxEffect" id="belfb_AccumulatedOtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTaxEffect" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="EquityInterestHeldByInvestor" id="belfb_EquityInterestHeldByInvestor" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" />
  <xs:element name="FibrecoAcquisitionMember" id="belfb_FibrecoAcquisitionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="GigacomInterconnectMember" id="belfb_GigacomInterconnectMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="AssetsAcquiredAbstract" id="belfb_AssetsAcquiredAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="LiabilitiesAssumedAbstract" id="belfb_LiabilitiesAssumedAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="GermanyMember" id="belfb_GermanyMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="IncomeTaxAuditYearsUnderExamination" id="belfb_IncomeTaxAuditYearsUnderExamination" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="PriorYearLiabilityUncertainTaxPositionsYear1" id="belfb_PriorYearLiabilityUncertainTaxPositionsYear1" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="PriorYearLiabilityUncertainTaxPositionsYear2" id="belfb_PriorYearLiabilityUncertainTaxPositionsYear2" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="EmployerMatchOfFirstOnePercentOfEmployeeDeferral" id="belfb_EmployerMatchOfFirstOnePercentOfEmployeeDeferral" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="EmployerMatchOfNextFivePercentOfEmployeeDeferral" id="belfb_EmployerMatchOfNextFivePercentOfEmployeeDeferral" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
</xs:schema>





