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Portable & cordedpower toolsAppliancesIndustrialUsers must independently evaluate the suitability of and test each product selected for their own specific applications. It is the User’s sole responsibility to determine fitness for aparticular system or use based on their own performance criteria, conditions, specific application, compatibility with other components, and environmental conditions. Users mustindependently provide appropriate design and operating safeguards to minimize any risks associated with their applications and products. Littelfuse products are not designedfor, and may not be used in, all applications. Read complete Disclaimer Notice at: www.littelfuse.com/disclaimer-electronics.REV0420

Many battery powered devices, in very differentapplications, share similar safety and control elementsLight ommercialDronesLarge Battery-poweredMobilityPower ToolsAutonomous andBattery Powered ToolsElectric Golf CartAutonomousWarehouse EquipmentLittelfuse, Inc. 20202

Global power tool market statistics & driversMarket Trends and DriversGlobal Power Tools Market ShareThe global power tool market is growing at a CAGR of 8.5% between2019 to 2026 ( 200 M-units).Cordless power tools experiencing rapid growth representing 50%share of electric power tools shipments.18%28%The major factor driving the adoption of battery power tools is theirportability, which enables the user to operate them without the needfor external power supply2%3%Demand for longer run-times and lighter systems resulting in batterypacks shifting to Li-ion battery chemistry similar to other mobileelectronics10%Li-ion batteries require additional safety considerations and batterymanagement compared to NiCd & NiMH based systemsBrushless DC motors are preferred for higher Whr power tools forbetter reliability/longevity, smaller size and improved outputperformance.Source: PressureWashr March 2018 report Tool Industry Behemoths*Based on LIB market trend. Estimating an average of 5 cells/ pack, we divided total unit shipmentsof cells/year by 5 to get total unit shipments of power tools.12%27%Stanley Black & DeckerMakitaHilti Corp.OthersTTIRobert Bosch GmbHHitachi KokiTotalSource: LIB market trend, alliedmarketresearchLittelfuse, Inc. 20203

Battery packs used in power tools & appliancesBattery management unit Battery protectorsFuseTVS diodePPTCCell protection moduleBattery-poweredappliances NTCBluetooth module ESD protectionHand-held appliancesProtectControlSenseLittelfuse, Inc. 20204

Click on the product series inthe table below for more infoBasic power tool or appliance battery pack architectureTechnologySeriesFuseMidi Fuse, BF1 , 881, 688TVS diodeSMF, SMF4LPPTC, FusenanoSMD, 0805LBattery protectorsITV2NTC*KC series3TVS diode arraySP3021, SP10071Battery Li-Ion cellsThermal CouplingBatteryManagementUnit1SignalLinesTo Power Tool/Charger{{Li-Ion cells2ID rgeMOSFETs3Battery-* Thermally coupled with Li-Ion cells.Acronyms:NTC: negative temperature co-efficientMOV: metal oxide varistorTVS: transient voltage suppressorPPTC: polymeric positive temperature co-efficientLegend:Power LineSignal LineLittelfuse, Inc. 20205

Click on the product series inthe table below for more infoTypical products for tools & appliances battery packsTechnologyFuseFunction in ApplicationProtect cells from high currentsdue to external shortsTVS DiodeProtects battery pack from overvoltage condition due to abnormalcharging conditionsPPTC, FuseProtect cells and BMS MOSFETfrom high currents due to externalshortsSeries2NTC3TVS diode arrayDual overcurrent and overvoltageprotectionTemperature monitoring of batterypack during charging &discharging cycles.Protects IC from ESDFeaturesrdMidi Fuse, BF1 , 881,688Reduces customer qualification timeby complying with 3rd party safetystandards such as UL/IEC3 party compliance UL/IEC, lowinternal resistance, shock safe, vibrationresistantSMF, SMF4LImproves system reliability byprotecting downstream componentsfrom transients on power linesExcellent clamping capabilitynanoSMD, 0805LReduces customer qualification timeby complying with 3rd party safetystandards such as UL/IECSMD form-factor allows for compactdesignSurface mountable, resettable (PPTC),compatible with lead-free solderprocess per IEC standards,Increases assemble efficiencySurface mountable; UL and TUVcertifiedKC seriesProvides accurate temperaturereading for enabling safe deviceoperationKynar insulated lead wires, small formfactor, fast thermal responseSP3021, SP1007Protects end user from electricalshocks and physical harmHermetically sealed, custom designedsensitivity1Battery protectorsBenefitsITVLittelfuse, Inc. 20206

Functional elements in power tool chargerAC input primaryprotection Fuse MOV NTCHigh frequency converter& clamp MOSFET TVS diodeSecondary-side rectification Reverse blocking diodeProtectControlSenseLittelfuse, Inc. 20207

Click on the product series inthe table below for more infoPower tool charger protection architectureACMains12AC InputPrimaryProtectionRectifier& ormerSecondarysideRectification& FilterOutput DCProtection &SensorBatteryPack1TechnologySeriesFuse5X20mm Fuse, TR, TENTC*STMOVLA, CIII, TMOVMOSFETX2-classTVS DiodeP6KE , P6SMBSchottky DiodeMBR, DST23Feedback& PWMOscillatorMCU* Thermally coupled to Li-Ion cells.Acronyms:NTC: negative temperature co-efficientMOV: metal oxide varistorTVS: transient voltage suppressorLegend:Power LineSignal LineLittelfuse, Inc. 20208

Click on the product series inthe table below for more infoPotential Littelfuse products for power tool chargerTechnology1FuseProtects power stage fromovercurrentNTCProtects power stage from highinrush currentMOVMOSFET23Function in ApplicationTVS DiodeSchottky DiodeProtects power unit from voltagesurges such as lighting,transientsHigh switching speed in powersupply unitsProtects power unit from voltagetransientsRectification and blocking inpower supply unitsSeriesBenefitsFeatures5X20mm Fuse, TR, TEReduces customer qualificationtime by complying with third partysafety standards such as UL/IECThird party compliance UL/IEC,low internal resistance, shocksafe, vibration resistantImproves system reliabilitySmall form factor, fast thermalresponseReduces customer qualificationtime by complying with third partysafety standards such as UL/IECHigh energy absorption capability:40 J – 530 J (2 ms)Fast response time and lowerheat signatureLow Rds(on), dv/dt ruggednessImproves system reliability byprotecting downstreamcomponents from transients onpower linesExcellent clamping capabilityEnables the design of highefficiency power suppliesUltra low forward voltage drop,high frequency operationSTLA, CIII, TMOVX2-classP6KE , P6SMBMBR, DSTLittelfuse, Inc. 20209

Key elements of cordless power toolTemperature SensePower Bridge Protection NTC NTCTrigger Input ProtectionPower Bridge & Gate Driver Fuse TVS Diode Reed Switch MOSFETProtectControlSenseLittelfuse, Inc. 202010

Click on the product series inthe table below for more infoBLDC motor protection architecture123Trigger &DC te DriverTechnologySeriesFuse1206SFH, 501TVS DiodeSMAJ, SMBJ, 5KPReed SwitchMDSR-10, MDSM-102NTC*KC series3MOSFETGen24NTCKC series1TemperatureMeasurementNTC4BLDCMotorMCU* Thermally coupled to Li-Ion cells.Acronyms:NTC: negative temperature co-efficientTVS: transient voltage suppressorLegend:Power LineSignal LineLittelfuse, Inc. 202011

Click on the product series inthe table below for more infoSelect Littelfuse products for BLDC motor protectionTechnologyFunction in ApplicationSeriesBenefitsFeaturesFuseProtects battery and downstreamcontroller from damage due toinrush current due to motorshorting or external shorts atcontacts1206SFH, 501Reduces customer qualificationtime by complying with third partysafety standards such as UL/IECThird party compliance UL/IEC,low internal resistance, shocksafe, vibration resistantTVS diodeProtect battery pack from voltagetransientsSMAJ, SMBJ, 5KPImproves system reliability byprotecting downstreamcomponents from transients onpower linesExcellent clamping capabilityReed SwitchProvides control signal to turn onand off the motorMDSR-10, MDSM-10Contamination resistant, compactdesignSwitch up to 200Vdc or 0.5A at upto 10W,1012 Ohms insulationresistanceProvides accurate temperature(component/ambient) for enablingsafe device operationHigh reliability, small form factor,fast thermal responseImproves system efficiency andenables compact designVery low Rds(on),High current capabilityProvides accurate temperature(component/ambient) for enablingsafe device operationHigh reliability, small form factor,fast thermal response12NTCTemperature sensing of PowerMOSFETKC series3MOSFETPart of inverter of brushless DCmotor for high frequencyswitchingGen24NTCTemperature sensingTo prevent motor damage due toover-heatingKC seriesLittelfuse, Inc. 202012

Corded power tools contain fewer electroniccomponentsAC Switching TRIACProtectControlSenseLittelfuse, Inc. 202013

Click on the product series inthe table below for more infoCorded power tool protection SwitchingTriggerSpeedControlFunction in ApplicationHigh power AC switchingand speed er LineSignal LineBenefitsAC switching and efficient speedcontrol, reduced need of heat sinkingFeaturesHigh Tj (150ºC), internally isolatedpackages (mechanically andthermally robust)Littelfuse, Inc. 202014

Standards for power tool equipmentStandardTitleGeneral ScopeIEC/UL 62841-1Safety standards for TransportableHand-Held Motor Operated Electric Power ToolsIEC 62841-1 compliance testing deals with the hazards presented by tools. Thestandard covers tools with rated voltage is not more than 250 V for single-phaseA.C. or D.C. and 480V for three-phase A.C. The rated input is not more than 3700W”Global/NorthAmericaIEC 62133-2/UL 62133Safety standards for Li-Ion Secondary Cellsand BatteriesEvaluating protection during various battery fault scenariosGlobal/NorthAmericaUL 2595General Requirements for Battery-PoweredApplianceThe standard covers the safe functioning of lithium-ion battery systems andlithium-ion cells employed in battery systems. The maximum rated voltage forappliances and battery packs is 75 VdcNorth AmericaUL 1642Lithium BatteriesUL 2054Household and Commercial batteriesIEC 62281Safety of Primary and Secondary Lithium Cellsand Batteries during transportThis standard specifies test methods and requirements for primary andsecondary (rechargeable) lithium cells and batteries to ensure their safety duringtransport other than for recycling or disposal.GlobalJIS C8714Safety Tests for Portable Li-Ion secondary cellsand BatteriesCovers safety testing of Li-ion storage batteries (single cell and multiple cell) forportable electronic devicesJapanANSI C18.2MPortable Rechargeable Cells and BatteriesDefines safety standards for portable cells and batteries. It is specific to twodistinct chemistry systems: lithium ion and nickelNorth AmericaBoth are Safety standard that deal with cells and small portable batteries.UL1642 deals with individual cells while UL2054 is for small rechargeablebattery packs.RegionNorth AmericaNorth AmericaLittelfuse, Inc. 202015

Small appliances spotlightClick on eachimage to open thecatalogTVS Diode Array CatalogAdditional information can be found on littelfuse.comLittelfuse, Inc. 202016

Local resources supporting our global customersMount ProspectLake enhamBeijingWuxiSuzhouShanghaiKunshanLegnagoRapid CityFremontMilpitasLong BeachTsukubaTokyoBeverlyRound RockSan SebastianCharneca de CaparicaPiedras NegrasMatamorosMuzquizDongguanHong KongSeonghamSeoulTaipeiChu-peiNew DelhiSingaporeTaguigLipa CityManausSão PauloLegendSalesR&DManufacturingLittelfuse, Inc. 202017