Off-highway Electric Vehicle Solutions

1 Off-highwayElectric Vehicle ssoleresponsibilitytodeterminefitnessfor aparticularsystemorusebasedontheirownper formancecriteria,conditions,specificappl ication,compatibilitywithotherparts, ,andmaynotbeusedin, , Inc. 20212 Off-highway Electric vehicles share similar architectureExcavatorAgriculture vehicleCompactorSnowcatUniversalmotor vehicleMining truck3 Littelfuse, Inc. 20213 Off-highway Electric Vehicle market trends and drivers Source: Grand View Research, MarketsandMarketsRapid growth at ~ CAGR051015202530201920202021202220232024 202520262027 Billion $YearOff-highway Electric Vehicle Market Market trends and driversThe Off-highway Electric Vehicle market size was estimated at USD billion in 2019 and is expected to grow at a CAGR of from 2020to electrification of Off-highway vehicles promises less fuel consumption and long-term cost savings because of less maintenance. Aggressive steps toward minimizing emissions and ventilation costs in underground mining, stringent emission regulations by government agencies, and increase in infrastructure spending by various governments are some of the reasons driving the demand for off-road Electric vehicles.

2 The Off-highway Electric construction Vehicle segment accounted for the largest revenue share of around in 2019. The agricultural segment is projected to grow at a CAGR of from 2020 to North America region accounted for the largest revenue share of for the market in 2019. The Asia Pacific region is projected to expand at the highest CAGR of from 2020 to , Inc. 20214 Littelfuse Solutions for Off-highway Electric vehicles* BMS: battery management System** PDU: Power Distribution Unit HVDC: High Voltage Direct CurrentBattery + BMS* Fuse TVS Diode TVS Diode Array Contactor relay NTC2DC/DC Converter TVS Diode TVS Diode Array Si/SiCMOSFET Gate Driver Diode4 Junction Box Fuse HVDC Contactor Relay Power Distribution Module6123456 Onboard charger Fuse MOV + SIDACtor GDT IGBT Si/SiC MOSFET Gate Driver TVS Diode TVS Diode Array1 Traction motor inverter Fuse TVS Diode TVS Diode Array IGBT IGBT Module Gate Driver512 V battery + PDU** High-current Fuse Fuse Box DC Power Distribution Module battery Disconnect Switch35 Littelfuse, Inc.

3 20215 Off-highway Electric Vehicle powertrain architectureClick on the product series in the table below for more info* Please contact Littelfuse associates for detailsOnboard charger12 V battery + PDUDC/DCconverterACcompressorElectricPTO motorTraction motor inverterDrivemotorElectricPTO motorBattery pack+ BMSPTC heaterCharging cordJunctionbox12346 Legend:Low/High-voltage DCAC input voltageBMS: battery management SystemPDU: Power Distribution UnitPTO: Power Take-offPTC: Positive Temperature Coefficient5 TechnologyProduct series1AC FuseLC HEV 50A, HC10EV*, DC Fuse526*, 527*, HC10EV*Mega 70 V, MIDI 70 VMOVAUMOVSIDACtor Pxxx0 FNLGDTCG2, CG3 TVS DiodeTPSMB, TPSMC, SZ1 SMC, SZ1 SMBTVS Diode ArrayAQ24 CANAGate DriverIXD_6xxSI,IX442 XIX4340NE,IX4351 NESi MOSFET or SiC MOSFETX Class, X2 ClassLSIC1 MOxxIGBTP lanar, Trench2DC Fuse or Specialty Power FuseSHEV, HC20EV, HC10EV*CNNE, JLLSSMD Fuse438A,441A,TVS DiodeTPSMB, TPSMC, SZ1 SMC, SZ1 SMBTVS Diode ArrayAQ24 CANAHVDC Contactor RelaysDCNEV, DCNLEVNTCKC, LC, Custom Assembly6 Littelfuse, Inc.

4 20216 Features and benefits of Littelfuse productsClick on the product series in the table below for more infoTechnologyFunction in applicationSeriesBenefitsFeatures1AC FuseAC input protection from short circuit and overload conditionLC HEV 50A, HC10EV*, Provides safety protection in high-voltage environments; full range fuseBolt down form factor; high breaking capacity;qualified to ISO 8820 standardDC FuseDC output protection from short circuit and overload condition526*, 527*, HC10EV*Mega 70 V, MIDI 70 VGuarantees safe interruption at any voltage; ideal for battery protection Automotive bolt-down fuse; high interrupt rating; operating temperature -40 C to 125 C; low open-state resistanceMOV+ SIDACtor Protection from lightning and systemtransient surgesAUMOVP rovides lower clamping voltage; ensures the reliable performance; no wear out Wide range of surge current ratings, disk sizes, and lead optionsPxxx0 FNLC ompact design; semiconductor-based solutionGDTE nsures electrical isolation between L-N-GCG2, CG3 Safety to the system with high isolationRugged, low leakage current TVS Diode Protects semiconductor products from transientsTPSMB, TPSMC, SZ1 SMC, SZ1 SMBE nables compact design; improves system reliability 600 W peak pulse power capability; excellent clamping capability; small footprintTVS Diode ArrayProtects CAN Bus from ESD, EFT, andvoltage transient AQ24 CANAE nsures reliability of the equipment without performance degradationAEC-Q101 qualified; meets ESD protection levels specified under safety standard; low leakage current and clamping voltageGate DriverEfficient switching of MOSFETs and IGBTsIXD_6xxSI,IX442 XIX4340 NEUltra-fast turn-on and turn-off of MOSFET.

5 Extremely robust device A to 30 A peak source/sink drive current; wide operating voltage range; -40 C to +125 C; low propagation delay timesIX4351 NEMinimizes switching losses; ultra-fast switching speeds; eliminates the need for separate supplyInternal charge pump regulator for selectable negative gate drive bias; protection features (UVLO detection and thermal shutdown)Si MOSFET or SIC MOSFETS witches the charge/discharge cycles based on controller feedbackX Class, X2 ClassLSIC1 MOxxHigh efficiency; high power density; easy to mountUltra-low on-resistance RDS(ON)and gate charge Qg;dv/dt ruggednessIGBTP lanar, TrenchHard-switching capability; high power density;low gate drive requirementsLow VCESAT, low Eon/Eoff; high surge current capability; positive thermal coefficient of VCESAT; short circuit capability2DC Fuse orSpecialty FuseShort circuit protection and overload circuit protection SHEV, HC20EV, HC10EV*Provides safety protection in high-voltage environments; quicker reaction timeBolt down form factor; fast-acting; high breaking capacity;qualified to ISO 8820 standardCNNE, JLLSHigh interrupt ratings; compact sizeSMD FuseSense line protection438A,441A,Excellent temperature stability and performance reliability; compact design Tested to new AECQ specifications; fast response to fault current; surface mount deviceTVS DiodeProtects from large current transients inhot-swap applicationTPSMB, TPSMC, SZ1 SMC, SZ1 SMBL owest qualification effort; ensures system reliabilityAEC-Q101 qualified; meets ESD protection and in- Vehicle transient surge requirement as defined under IEC and ISO safety standards.

6 Excellent clamping capabilityTVS Diode ArrayProtects CAN bus from ESD, EFT, andvoltage transient AQ24 CANAE nsures reliability of the equipment without performance degradationAEC-Q101 qualified; meets ESD protection levels specified under safety standards; low leakage current and clamping voltageHVDC Contactor RelaysConnect disconnected battery from main circuitryDCNEV, DCNLEVA llows a low-voltage signal to switch the contacts for a high-voltage signalWide range of capabilities can switch from tens of amperes to thousands of amperes, and tens of volts to thousands of voltsNTCT emperature monitoring of battery pack during charging and discharging cyclesKC, LC, Custom AssemblyProvides accurate temperature reading to enable safe device operationCustom Solutions ; small form factor; fast thermal response* Please contact Littelfuse associates for details7 Littelfuse, Inc. 20217 Off-highway Electric Vehicle powertrain architectureClick on the product series in the table below for more infoTechnologyProduct series3 Ignition Switch95060 High-current FuseZCaseFuse BlockFHZTVS DiodeSLD8 SDC PowerDistribution ModuleHWB60, HWB18 Manual BatteryDisconnect Switches 08010100, 080991004 TVS Diode ArrayAQ24 CANATVS Diode TPSMB, SZ1 SMB, SZP6 SMBGate DriverIXD_6xxSI, IX4340NE, IX4351 NEX Class, X2 Class, LSIC1 MOxxSi/SiC MOSFETX Class, X2 Class, LSIC1 MOxxDiodeDSEP, LSIC2SD, DHG5 TVS Diode ArrayAQ24 CANATVS DiodeTPSMBGate DriverIXD_6xxSI, IX4340NE, IX4351 NEDiscrete IGBT(1200 V, 150 A)Trench XPTTM , PlanarIGBT Module (1200 V, 450 A)

7 MIXA450PF1200 TSF6DC output Fuse526*, 527*, HC10EV*Mega 70 V, MIDI 70 VHVDC Contactor RelaysDCNEV, DCNLEVP ower Distribution ModuleMDB5* Please contact Littelfuse associates for detailsOnboardcharger12 V battery + PDUDC/DCconverterACcompressorElectricPTO motorTraction motor inverterDrivemotorElectricPTO motorBattery pack+ BMSPTC heaterCharging cordJunctionbox12346 Legend:Low/High-voltage DCAC input voltageBMS: battery management SystemPDU: Power Distribution UnitPTO: Power Take-offPTC: Positive Temperature Coefficient58 Littelfuse, Inc. 20218 Features and benefits of Littelfuse productsClick on the product series in the table below for more infoTechnologyFunction in applicationSeriesBenefitsFeatures3 Ignition SwitchActivates the main electrical systems forthe vehicle95060 Stands up to mechanical shock and vibration and will not corrode or rust; integrated Deutsch-type socket makes electrical connection quick and easyAvailable in broad voltage range up to 48 V; made of rugged engineering grade plastic; UL testedHigh-current FuseOvercurrent protection for the wire harnessZCaseCompact design when compared to a traditional solution; integration of the pre-fuse function into the mainjunction boxWide rating range up to 600 A; voltage rating: 32 VDC;small footprintFuse BlockFuse holder designed for primary high current power distribution, usually paired with a ZCASE shunt for the inputFHZI mproved flexibility of design.

8 Wide variety of configurations possible; protects fuses from dustand debrisMega range fuses (40 600 A) can be used in any location; flexible bussing and configurable stud sizes;corrosion-resistant coatings TVS DiodeLoad dump protectionSLD8 SOptimizes board space; lowest qualification effort; ensures system reliabilityAEC-Q101 qualified; small footprint; meets IEC standards for ESD protection and ISO for in- Vehicle transient surgesDC Power Distribution ModuleHard-wired 12 V power distribution module protects and distributes current throughoutan applicationHWB60, HWB18 Allows the user to customize their own circuitry;easy to mount; multiple PDMs can be dovetailed together to expand circuit protection capacityUses MINI (280 style) circuit protection component; features multiple cavities creating a high-density fuse module; compact footprintManual battery Disconnect Switches Cuts off the connection between a battery and accessories that can drain it08010100, 08099100 Lowers the chances of the battery malfunctioningand protects it against electrical fires and theftCurrent rating 100 500 A; handle and contacts are designed with a unique 360 C operation for activating the switch ON/OFF; waterproof and dustproof 4 TVS Diode ArrayProtects CAN bus from ESD, EFT, andvoltage transient AQ24 CANAE nsures reliability of the equipment without performance degradationAEC-Q101 qualified; meets ESD protection levels specified under safety standards; low leakage current and clamping voltageTVS Diode Gate driver protectionTPSMB, SZ1 SMB, SZP6 SMBL owest qualification effort; ensures system reliabilityAEC-Q101 qualified; meets ESD protection and in- Vehicle transient surge requirement as defined under IEC and ISO safety standards.

9 Excellent clamping capabilityGate DriverControls the switching MOSFETs IXD_6xxSI, IX4340 NEUltra-fast turn-on and turn-off of MOSFET;extremely robust device to 30A Peak Source/Sink Drive Current; wide operating voltage range; -40 C to +125 C; low propagation delay timesIX4351 NEMinimizes switching losses; ultra-fast switching speeds; eliminates the need for separate supplyInternal charge pump regulator for selectable negative gate drive bias; protection features (UVLO detection and thermal shutdown)Si MOSFET or SiCMOSFETHigh-frequency switching and rectificationX Class, X2 Class, LSIC1 MOxxHigh efficiency; high power density; easy to mountAEC-Q101 qualified SMPD packages; low on-resistance RDS(ON)and gate charge QgDiodeDSEP, LSIC2SD, DHGR educes switching losses; increases efficiencyHigh surge capability; negligible IRR; Tj175 C9 Littelfuse, Inc. 20219 Features and benefits of Littelfuse productsClick on the product series in the table below for more infoTechnologyFunction in applicationSeriesBenefitsFeatures5 TVS Diode ArrayProtects CAN bus from ESD, EFT andvoltage transient AQ24 CANAE nsures reliability of the equipment without performance degradationAEC-Q101 qualified; meets ESD protection levels specified under safety standards; low leakage current & clamping voltageTVS Diode(Active clamping)Activates clampingTPSMBE xcellent clamping capability; meets automotive standards; fast response timeAEC-Q101 qualified; meets ESD protection and in- Vehicle transient surge requirement as defined under IEC and ISO safety standards; excellent clamping capabilityGate DriverControls the switching of IGBTs IXD_6xxSI, IX4340 NEUltra-fast turn-on and turn-off of MOSFET;extremely robust device A to 30 A Peak Source/Sink Drive Current; wide operating voltage range.

10 -40 C to +125 C; low propagation delay timesIX4351 NEMinimizes switching losses; ultra-fast switching speeds; eliminates the need for separate supplyInternal charge pump regulator for selectable negative gate drive bias; protection features (UVLO detection and thermal shutdown)Discrete IGBT (1200 V, 150 A)Switches applicationsTrench XPTTM , PlanarHard-switching capability; high power density; low gate drive requirementsLow VCESAT;low Eon/Eoff; high surge current capability; positive thermal coefficient of VCESAT; short circuit capabilityIGBT Module (1200 V, 450 A)MIXA450PF1200 TSFS hort circuit rated for 10 sec; low gate charge; low EMI and competitive low VCE(SAT)Rugged XPT design with thin wafer technology6DC output FuseShort circuit protection and over