Littelfuse

Littelfuse Off-Highway Electric Vehicle Solutions

Electrification and battery operation is becoming pervasive for many diverse types of construction, industrial, and agricultural vehicles. Explore below the Littelfuse advanced power distribution, circuit protection, and power semi solutions for off-highway vehicles.

Image of Littelfuse's Off-Highway Electric Vehicle Architecture 
  Technology Function in Application Series Benefits Features
1
On-Board Charger		 AC Fuse Ac input protection from short circuit and overload condition LC HEV 50A, HC10EV* Provides safety protection in high-voltage environments; full range fuse Bolt down form factor; high breaking capacity; qualified to ISO 8820 standard
DC Fuse DC output protection from short circuit and overload condition 526*, 527*, HC10EV*, Mega®70 V, MIDI 70V Guarantees 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 resistance
MOV+
SIDACTor®		 Protection from lightning and system transient surges AUMOV Provides lower clamping voltage; ensures the reliable performance; no wear out Wide range of surge current ratings, disk sizes, and lead options
Pxxx0FNL Compact design; semiconductor-based solution
GDT Ensures electrical isolation between L-N-G CG2, CG3 Safety to the system with high isolation Rugged, low leakage current
TVS Diode Protects semiconductor products from transients TPSMB, TPSMC, SZ1SMC, SZ1SMB Enables compact design; improves system reliability 600 W peak pulse power capability; excellent clamping capability; small footprint
TVS Diode Array Protects CAN Bus from ESD, EFT, and voltage transient AQ24CANA Ensures reliability of the equipment without performance degradation AEC-Q101 qualified; meets ESD protection levels specified under safety standard; low leakage current and clamping voltage
Gate Driver Efficient switching of MOSFETs and IGBTs IXD_6xxSI, IX442X, IX4340NE Ultra-fast turn-on and turn-off of MOSFET; extremely robust device 1.5 A to 30 A peak source/sink drive current; wide operating voltage range; -40°C to +125°C; low propagation delay times
IX4351NE Minimizes switching losses; ultra-fast switching speeds; eliminates the ned for separate supply Internal charge pump regulator for selectable negative gate drive bias; protection features (UVLO detection and thermal shutdown)
Si MOSFET or
SIC MOSFET		 Switches the charge/discharge cycles based on controller feedback X Class, X2 Class
LSIC1MOxx		 High efficiency; high power density; easy to mount Ultra-low on-resistance (RDS(ON) and gate charge Qg; dv/dt ruggedness
IGBT Planar, Trench Hard-switching capability; high power density; low gate driver requirements Low VCESAT, low Eon/E; high surge current capability; positive thermal coefficient of VCESAT; short circuit capability
2
Battery Pack/BMS		 DC Fuse or
Specialty Fuse		 Short circuit protection and overload circuit protection SHEV, HC20EV, HC10EV* Provides safety protection in high-voltage environments; quicker reaction time Bolt down form factor; fast-acting; high breaking capacity; qualified to ISO 8820 standard
CNNE, JLLS High interrupt ratings; compact size
SMD Fuse Sense line protection 438A, 441A Excellent temperature stability and performance reliability; compact design Tested to new AECQ specifications; fast response to fault current; surface mount device
TVS Diode Protects from large current transients in hot-swap application TPSMB, TPSMC, SZ1SMC, SZ1SMB Lowest qualification effort; ensures system reliability AEC-Q101 qualified; meets ESD protection and in-vehicle transient surge requirement as defined under IEC and ISO safety standards; excellent clamping capability
TVS Diode Array Protects CAN bus from ESD, EFT, and voltage transient AQ24CANA Ensures reliability of the equipment without performance degradation AEC-Q101 qualified; meets ESD protection levels specified under safety standards; low leakage current and clamping voltage
HVDC Contactor Relays Connect disconnected battery from main circuitry DCNEV, DCNLEV Allows a low-voltage signal to switch the contacts for a high-voltage signal Wide range of capabilities-can switch from tens of amperes to thousands of amperes, and tens of volts to thousands of volts
NTC Temperature monitoring of battery pack during charging and discharging cycles KC, LC, Custom Assembly Provides accurate temperature reading to enable safe device operation Custom solutions; small form factor; fast thermal response

  Technology Function in Application Series Benefits Features
3
12 V Battery/PDU		 Ignition Switch Activates the main electrical systems for the vehicle 95060 Stands up to mechanical shock and vibration and will not corrode or rust; integrated Deutsch-type socket makes electrical connection quick and easy Available in broad voltage range up to 48 V; made of rugged engineering grade plastic; UL tested
High-current Fuse Overcurrent protection for the wire harness Z Case Compact design when compared to a traditional solution; integration of the pre-fuse function into the main junction box Wide rating range up to 600 A; voltage rating: 32 VDC; small footprint
Fuse Block Fuse holder designed for primary high current power distribution, usually paired with a ZCASE shunt for the input FHZ Improved flexibility of design; wide variety of configurations possible; protects fuses from dust and debris Mega range fuses (40-600 A) can be used in any location; flexible bussing and configurable stud sizes; corrosion-resistant coatings
TVS Diode Load dump protection SLD8S Optimizes board space; lowest qualification effort; ensures system reliability AEC-Q101 qualified; small footprint; meets IEC standards for ESD protection and ISO for in-vehicle transient surges
DC Power Distribution Module Hard-wired 12 V power distribution module protects and distributes current throughout an application HW B60, HWB18 Allows the user to customize their own circuitry; easy to mount; multiple PDMs can be dovetailed together to expand circuit protection capacity Uses MINI (280 style) circuit protection component; features multiple cavities creating a high-density fuse module; compact footprint
Manual Battery Disconnect Switches Cuts off the connection between a battery and accessories that can drain it 08010100, 08099100 Lowers the chances of the battery malfunctioning and protects it against electrical fires and theft Current rating of 100-500 A; handle and contacts are designed with a unique 360°C operation for activating the switch ON/OFF; waterproof and dustproof
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DC/DC Converter		 TVS Diode Array Protects CAN bus from ESD, EFT, and voltage transient AQ24CANA Ensures reliability of the equipment without performance degradation AEC-Q101 qualified; meets ESD protection levels specified under safety standards; low leakage current and clamping voltage
TVS Diode Gate driver protection TPSMB, SZ1SMC, SZ1SMB Lowest qualification effort; ensures system reliability AEC-Q101 qualified; meets ESD protection and in-vehicle transient surge requirements as defined under IEC and ISO safety standards; excellent clamping capability
Gate Driver Controls the switching MOSFETs IXD_6xxS, IX4340NE Ultra-fast turn-on and tur-off of MOSFET; extremely robust device 1.5 A to 30 A Peak Source/Sink Drive Current; wide operating voltage range; -40°C to +125°C; low propagation delay times
IX4351NE Minimizes switching losses; ultra-fast switching speeds; eliminates the need for separate suppy Internal charge pump regulator for selectable negative gate drive bias; protection features (UVLO detection and thermal shutdown)
Si MOSFET or SiC MOSFET High-frequency switching and rectification X Class, X2 Class, LSIC1MOxx High efficiency; high power density; easy to mount AEC-Q101 qualified SMPD packages; low on-resistance (RDS(ON)
Diode DSEP, LSIC2SD, DHG Reduces switching losses; increases efficiency High surge capability; neglible IRR; Tj 175°C

  Technology Function in Application Series Benefits Features
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Traction Motor Inverter		 TVS Diode Array Protects CAN bus from ESD, EFT and voltage transient AQ24CANA Ensures reliability of the equipment without performance degradation AEC-Q101 qualified; meets ESD protection levels specified under safety standards; low leakage current & clamping voltage
TVS Diode (Active Clamping) Activates clamping TPSMB Excellent clamping capability; meets automotive standards; fast response time AEC-Q101 qualified; meets ESD protection and in-vehicle transient surge requirements as defined under IEC and ISO safety standards; excellent clamping capability
Gate Driver Controls the switching of IGBTs IXD_6xxS, IX4340NE Ultra-fast turn-on and turn-off of MOSFET; extremely robust device 1.5 A to 30 A Peak Source/Sink Drive Current; wide operating voltage range; -40°C to +125°C; low propagation delay times
IX4351NE Minimizes switching losses; ultra-fast switching speeds; eliminates the need for separate supply Internal charge pump regulator for selectable negative gate drive bias; protection features (UVLO detection and thermal shutdown)
Discrete IGBT (1200 V, 450 A) Switches Applications Trench XPT7™, Planar Hard-switching capability; high power density; low gate drive requirements Low VCESAT; low Eon/Eoff; high surge current capability; positive thermal coefficient of VCESAT; short circuit capability
IGBT Module (1200 V, 450 A) MIXA450PF1200TSF Short circuit rated for 10usec; low gate charge; low EMI and competitive low V(sub>CE(SAT) Rugged XPT design with thin wafer technology
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Junction Box		 DC output Fuse Short circuit protection and overload circuit protection 526*, 527*, HC10EV*, Mega®70 V, MIDI70V Provides safety protection in high-voltage environments; quicker reaction time Bolt down form factor, fast-acting; high breaking capacity; qualified to ISO 8820 standard
HVDC Contactor Relays Protects the electrical loads operated through the battery DCNEV, DCNLEV Allows a low-voltage signal to switch the contacts for a high voltage signal Wide range of capabilities - can switch from tens of ampere to thousands of amperes, and tens of volts to thousands of volts
Power Distribution Module Main power distribution module protects and distributes current throughout an application MDB5 Robust solution for high corrosion environments Capability to handle fuse ratings from 23-500 A and voltages up to 70 V; full range of fuses for applications from 12 V - 48 V+; user choice of sealing options