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Products
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Automotive Sensors
Automotive Sensors
Littelfuse Automotive Sensor Products offer a wide range of sensors for use in monitoring various vehicular functions in the areas of passenger safety, comfort and convenience plus vehicle powertain, chassis and emission applications. -
Battery Management
Battery Management
Littelfuse battery management devices provide methods of conserving battery power, protecting against over-discharge, combining and protecting auxiliary equipment such as liftgate motors. -
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Battery mini-Breakers (Thermal Cutoff Devices)
Battery mini-Breakers (Thermal Cutoff Devices)
Littelfuse battery mini-Breakers provide battery cell protection for high-capacity Lithium Polymer and prismatic cells. -
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Custom-Engineered Electrical Equipment
- Arc-Resistant Load Break/Disconnect Switches
- Arc-Resistant Switchgear
- Custom Built Switchgear MCC
- Dewatering Substations
- Integrated Variable-Frequency Drives
- Littelfuse Startco Soft Starters
- Metal-Clad and Metal-Enclosed Switchgear
- Mine-Duty Medium-Voltage Junction Box
- Mining Machine Controls
- Neutral-Grounding Resistors
- Outdoor Portable Substations (Skid and Trailor Mounted)
- Power Factor Correction Systems/Capacitor Banks
- Power Monitoring and Control
- Power Takeoff Panels (PTO)
- Reconditioning and Upgrade Services
- Switch Houses
- Trailer or Skid-Mounted Gen Set
- Underground Portable Power Centres
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Custom-Engineered Electrical Equipment
Designing and Building Custom-Engineered Modules for Electrical Distribution, Protection and Control. -
DC Vehicle Connectors
- 13-Pole Sockets and Plugs
- 15-Pole Sockets and Plugs
- 15-Pole Spiral Coils
- 2-Pole - 3-Pole Sockets and Plugs
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DC Vehicle Connectors
Electrical sockets, plugs and coils used for connection of a truck and trailer on commercial vehicles or caravans for 12 and 24V systems. -
DC Power Distribution Modules
DC Power Distribution Modules
Feature multiple electrical power outputs, acceptance of many fuses, fuse types & relays. -
- DC Solenoids and Relays
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EMC Components
EMC Components
Common Mode Noise Filters (CMF) attenuate common mode noise in differential and balanced transmission, and power supply and audio lines. -
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Fuse Blocks, Fuse Holders and Fuse Accessories
- Auto & Commercial Vehicle Fuse Holders
- Bodies, Caps, Covers and Terminals
- Box Cover Units
- Dead Front Fuse Holders
- Electrical Power Distribution Blocks
- Fuse Blocks
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Fuse Blocks Fuse Holders and Fuse Accessories
Littelfuse offers a comprehensive line of fuse blocks, fuse holders, and fuse accessories for automotive, electronic, and electrical markets. -
Fuses
- Automotive Aftermarket Products
- Automotive Passenger Car
- Axial Radial Thru Hole Fuses
- Cartridge Fuses
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Fuses
Littelfuse manufactures the broadest and most innovative selection of fuses.
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Fusible Switches and Panels
Fusible Switches and Panels
Provide a complete, one-piece solution for easy procurement and code compliance. -
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Gas Discharge Tubes
Gas Discharge Tubes
Dissipate high voltage transients through a contained plasma gas with high surge capability, low capacitance and small size. -
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Inductors
Inductors
Range of power inductors utilizing thin film photolithography technology metal alloy composite with low loss and high current capability for power supply circuits. -
- Integrated Circuits
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Magnetic Sensors and Reed Switches
Magnetic Sensors and Reed Switches
Magnetic sensing products utilizing Reed and Hall Effect technologies, with custom solutions available. -
- New Products
- Other Products and Accessories
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Polymer ESD Suppressors
Polymer ESD Suppressors
Low capacitance polymer base product for protecting high speed data circuit from ESD damage and maintaining data integrity. -
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PolyZen Devices
PolyZen Devices
Polymer-enhanced, precision Zener diodes that offer resettable protection against multi-Watt fault events without the need for multi-Watt heat sinks. -
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Power Semiconductors
Power Semiconductors
High reliability power semiconductors utilize the latest technology. -
Protection Relays and Controls
- Accessories
- Alternating Relays
- Arc Flash Detection
- Covers and Mounting Adapters
- Feeder Protection
- Ground Fault Relays
- Flashers and Tower Lighting Controls
- Industrial Products
- Intrinsically Safe Relays
- Motor and Pump Protection
- Pump Controls and Liquid Level Controls
- Relay Current Transformers
- Relay Software
- Resistance Grounding
- Retrofit Kits
- Single Function Relays
- Time Delay Relays
- Trailing Cable Protection
- Voltage Monitoring Relays
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Protection Relays and Controls
A full range of Protection Relays and Controls for the harshest environments. -
PolySwitch Resettable PTC Fuses
PolySwitch Resettable PTC Fuses
Resettable Overcurrent Protection devices with various options: Surface Mount, Radial Leaded, Strap and Low Resistance. -
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Semiconductors
- IXYS Power Semiconductors and ICs
- Silicon Carbide
- Ignition IGBTs
- Discrete Thyristors View All
- Baseband Voice DS1 Protection
- Broadband Optimized Protection
- High Exposure Surge Protection
- Line Circuit Access Switch LCAS Protection View All
Semiconductors
Power Semiconductors
SIDACtor® Protection Thyristors
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Shock-Block™ GFCI
Shock-Block™ GFCI
Shock protection for people and equipment working in dangerous environments. -
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Surge Protection Modules and Devices
Surge Protection Modules and Devices
Our Surge Protection Devices (SPDs) And Modules Are Designed To Provide Protection From Transient Overvoltage. They Are Thermally-Protected And Built With High-Quality, Dependable Materials. -
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Switches
- Ignition Switches
- Manual Battery Disconnect Switches
- Momentary Switches
- Electrical Battery Disconnect Switches
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Switches
Features manually-operated, foot-operated, and mechanically-operated switches; and switches operated by temperature or pressure. -
Temperature Sensors
Temperature Sensors
Innovative temperature sensing solutions -
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Varistors
Varistors
Reliable standard and thermal protected varistor, available in a variety of forms, surge current capability up to 70,000 Amp. -
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Automotive Sensors
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Industries
- Services
- Technical Resources
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Competitor Cross Reference
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