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        <link:definition>091600 - Disclosure - SUBSEQUENT EVENTS (Details)</link:definition>
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  <xs:element name="AccruedExpensesExcludingRestructuringCostsDisclosureTextBlock" id="belfb_AccruedExpensesExcludingRestructuringCostsDisclosureTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
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  <xs:element name="AccumulatedOtherComprehensiveIncomeLossTaxAbstract" id="belfb_AccumulatedOtherComprehensiveIncomeLossTaxAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="ExcessiveDividendRateOfOneClassOverOtherClass" id="belfb_ExcessiveDividendRateOfOneClassOverOtherClass" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="ExcessiveUndistributedEarningsAllocationRateOfOneClassOverOtherClass" id="belfb_ExcessiveUndistributedEarningsAllocationRateOfOneClassOverOtherClass" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="EarningPerShareTwoClassMethodAbstract" id="belfb_EarningPerShareTwoClassMethodAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
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  <xs:element name="NorthAmericaMember" id="belfb_NorthAmericaMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
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  <xs:element name="FibrecoMember" id="belfb_FibrecoMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
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  <xs:element name="NumberOfRestrictedSharesGrantedForAcquisition" id="belfb_NumberOfRestrictedSharesGrantedForAcquisition" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="RestrictedStockIssuedInConnectionWithAcquisitionFairValue" id="belfb_RestrictedStockIssuedInConnectionWithAcquisitionFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="BusinessAcquisitionPurchasePriceAllocationDeferredTaxLiabilitiesCurrent" id="belfb_BusinessAcquisitionPurchasePriceAllocationDeferredTaxLiabilitiesCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="BusinessAcquisitionPurchasePriceAllocationIncomeTaxesPayable" id="belfb_BusinessAcquisitionPurchasePriceAllocationIncomeTaxesPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="BusinessAcquisitionProFormaEarningsPerShareBasicAndDiluted" id="belfb_BusinessAcquisitionProFormaEarningsPerShareBasicAndDiluted" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="TransportationOfEquipmentMember" id="belfb_TransportationOfEquipmentMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xs:element name="RestructuringCashPaymentsAndOtherSettlements" id="belfb_RestructuringCashPaymentsAndOtherSettlements" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" />
  <xs:element name="FacilityLeaseCommitment" id="belfb_FacilityLeaseCommitment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
  <xs:element name="FairValueOfInvestmentsHeldInRabbiTrust" id="belfb_FairValueOfInvestmentsHeldInRabbiTrust" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
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  <xs:element name="InvestmentsHeldInRabbiTrustMember" id="belfb_InvestmentsHeldInRabbiTrustMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <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="GermanyMember" id="belfb_GermanyMember" type="nonnum:domainItemType" 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="IncomeTaxAuditYearsUnderExamination" id="belfb_IncomeTaxAuditYearsUnderExamination" 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="PriorYearLiabilityUncertainTaxPositionsYear1" id="belfb_PriorYearLiabilityUncertainTaxPositionsYear1" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" />
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  <xs:element name="GigacomInterconnectMember" id="belfb_GigacomInterconnectMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <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="IncomeTaxExaminationsYearUnderExamination" id="belfb_IncomeTaxExaminationsYearUnderExamination" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
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  <xs:element name="ScheduleOfNetBenefitCostsAmountRecognizedInBalanceSheetAndAccumulatedOtherComprehensiveIncomeTableTextBlock" id="belfb_ScheduleOfNetBenefitCostsAmountRecognizedInBalanceSheetAndAccumulatedOtherComprehensiveIncomeTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <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" />
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  <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" />
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  <xs:element name="NumberOfPatentsClaimedToBeInfringed" id="belfb_NumberOfPatentsClaimedToBeInfringed" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
  <xs:element name="SubsequentEventsMaximumInsuranceDeductibleAmount" id="belfb_SubsequentEventsMaximumInsuranceDeductibleAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" />
  <xs:element name="NetIncomeLossContributedByAcquiredEntities" id="belfb_NetIncomeLossContributedByAcquiredEntities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" />
</xs:schema>





