Home » Our Principals » LittelFuse

Littelfuse

Littelfuse is a leading industrial technology manufacturer dedicated to fostering a sustainable, connected, and safer world. Operating in over 20 countries and employing around 17,000 associates globally, we collaborate with customers to create and provide innovative, dependable solutions. Our products serve more than 100,000 end customers across diverse sectors, including industrial, transportation, and electronics, making an impact everywhere, every day. Headquartered in Chicago, Illinois, Littelfuse has been a trusted name since its founding in 1927.

Power Semiconductors Solutions

Pantronics offers a comprehensive range of Littelfuse’s power semiconductors that cater to the evolving demands of modern power management systems. Our selection includes high-performance thyristors, rectifiers, fast recovery diodes, IGBTs (Insulated Gate Bipolar Transistors), and advanced wide band gap devices. These products are available in both discrete formats and multi-chip modules, ensuring efficient and flexible integration into various applications.

Our power semiconductors are designed to deliver optimal performance and reliability, making them ideal for use in sectors such as renewable energy, electric vehicles, and industrial automation. By leveraging our cutting-edge technologies, customers can enhance energy efficiency and improve overall system management.

IGBT modules ensure high efficiency and fast switching by combining the MOSFET gate-control structure with the high current and low saturation voltage characteristics of BJTs.

Ignition Insulated Gate Bipolar Transistor (Ignition IGBT) technology integrates monolithic circuitry with ESD and over-voltage clamped protection, ideal for inductive coil driver applications.

Solid-state switches are utilized to regulate the flow of electrical current. They are commonly employed for circuit protection in home appliances, electrical tools, and outdoor equipment applications. A wide selection of thru-hole and surface mount options is available. Explore the variety of discrete thyristors below.

Designed to meet the general requirements of power control applications, these components offer high current handling capabilities.

The extensive Power MOSFETs portfolio includes linear and depletion mode Power MOSFETs, setting the industry standard for high-voltage, high-power discrete MOSFET applications.

Select from the largest variety of IGBT devices available on the power semiconductor market. These devices offer benefits such as low energy losses, exceptional ruggedness, and low on-state voltages.

A broad range of Gate Driver ICs is available, offering up to 30A peak output current in various package versions, including real power packages for driving MOSFET, SiC-MOSFET, and IGBT power devices.

IGBT modules ensure high efficiency and fast switching by combining the MOSFET gate-control structure with the high current and low saturation voltage characteristics of BJTs.

Designed for commercial and industrial applications, these products offer low reverse recovery time, high-temperature resistance, minimal leakage, and low forward voltage drop.

Find the products you need by choosing a category below or by using the search bar at the top to enter a specific part number.

Created to meet the fundamental requirements of power control applications, offering superior capability in handling high currents.

The Breakover Diodes portfolio offers single and module diodes in a wide range of voltage ratings.

Designed to meet the critical needs of power control applications by offering robust capabilities in high current handling.

A comprehensive portfolio of fast recovery and Schottky diodes is available, utilizing diverse technologies for enhanced performance tailored to various applications. These products are designed to meet the needs of commercial and industrial applications, offering low leakage, low forward voltage drop, fast recovery, low dynamic losses, and high-temperature switching capabilities.

Circuit Protection Solutions

The broadest and most innovative selection of fuses to serve nearly every possible application.

Cutting-edge resettable overcurrent protection solutions from an industry leader. Explore a diverse range including surface mount, radial leaded, and battery strap options. Discover our latest additions: PolySwitch® Resettable PPTCs with reduced resistance.

Durable and dependable overvoltage protection solutions
Offering a variety of form factors and protection ranges
High surge capability – up to 70,000 Amps
Includes thermal protection options
Explore our product range to discover varistors that suit your needs

Provides high voltage transient surge protection for small devices
Designed to dissipate large amounts of energy
Ideal for lightning surge protection
Widely used in outdoor telecom equipment
Available in leaded and surface mount configurations

Explore the extensive selection of semiconductor protection thyristors, designed for over-voltage transient suppression in telecom and data networking equipment. Browse the products below to find the ideal SIDAC protection thyristors that perfectly match your unique requirements

Reverse standoff voltage range: 3.3V to 600V
Peak pulse power capacity: 200W to 30KW
High current protection options: Peak pulse current (8/20) 1kA, 3kA, 6kA, 10kA, 15kA, and 20kA

Safeguard electronics from rapid and harmful voltage transients, including lightning and electrostatic discharge (ESD). TVS Diode Arrays provide optimal protection for I/O interfaces, as well as digital and analog signal lines. Discover the perfect TVS Diode Arrays by exploring the products below.

Surge protective devices (SPDs) and modules are engineered to shield against transient overvoltage. These modules are perfect for surge protectors in outdoor and commercial LED lighting fixtures, while the SPDs are suited for branch circuits in industrial facilities.

Protection & control solutions

Advanced solid state relays utilize discrete semiconductors and innovative architecture to provide quick, dependable, bounce-free switching in a compact form. These relays are perfect for replacing reed and smaller electromechanical relays, offering efficient switching at much lower drive currents.

The industrial division offers essential products for protecting, safely controlling, and distributing electrical power in industrial applications, including motor and pump protection relays, arc-flash relays, ground fault relays, feeder protection, pump controllers, time delay relays, flashers, and tower lighting, to minimize electrical hazards, reduce equipment damage, improve productivity, and protect personnel from electrical faults, relied upon by professionals in construction, manufacturing, mining, oil & gas, solar, and other industries.

Sensing Solutions

A global leader in magnetic sensing solutions offers a wide selection of magnetic sensors, including reed switches, reed sensors, Hall Effect sensors, reed relays, and both bare and packaged magnetic actuators.

Current sense resistors provide an optimal, low-cost solution for measuring current flow to ensure control and overcurrent protection.

A leading company produces a wide range of top-quality thermistors, thermistor probes, RTD probes, and assemblies

Switch Solutions

Explore our range of electrical and electronic switches, including manually-operated, foot-operated, and mechanically-operated switches, as well as those activated by temperature or pressure. For remotely-operated switches, check out our RELAYS section. Browse our selection of electrical and electronic switches below.

High Voltage DC Contactor

High current and high voltage DC contactor relays designed for electric, hybrid, and industrial applications including charging stations, battery power supplies, DC power control, circuit protection, and other switch controls. Ideal for use in uninterruptible power supplies and various electronic control systems.

Transportation Solutions

Carling Technologies provides a diverse range of electromechanical and digital switches for various uses. Our selection includes rocker, toggle, pushbutton, rotary, and combination switches, as well as battery disconnect switches. These products offer numerous aesthetic, size, and functional options, such as different circuit configurations, AC and DC ratings, insulated and water-resistant designs, various termination and mounting choices, and custom colors and imprinting options.

Carling Technologies offers a comprehensive range of circuit protection products, including hydraulic-magnetic circuit breakers, thermal circuit breakers, equipment leakage and ground fault circuit breakers, and fuse links with DIN rail mounted fuse holders.

These products provide high performance and reliable circuit protection, available in various sizes, amperage ratings, current or voltage sensing capabilities, and agency approvals, ensuring optimal solutions for most design applications.