Littelfuse, Inc.

Company Profile

■URL

https://www.littelfuse.com/

■Address

6133 North River Road, Suite 500, Rosemont, IL 60018 USA

Business Overview

-The Company designs and manufactures electronic components, modules and subassemblies for a variety of end markets, including the automotive, industrial, telecommunication, and medical fields. Its products are used in circuit protection, connection, power control and sensor systems and include fuses, cable protectors, circuit breakers, switches, and power distribution modules.

-The Company is organized into three reportable operating segments as follows:

Electronics Segment: The segment provides a variety of components including fuses, switches, interconnect solutions, ESD suppressors, varistors, semiconductor products, and IGBT technologies for a range of end markets including industrial drives, automotive electronics, and electric vehicles (EVs) along with related charging infrastructure.
Transportation Segment: The segment provides circuit protection, power control and sensing technologies for passenger vehicles, heavy-duty commercial vehicles, off-road vehicles, construction equipment, and agricultural machinery.
Industrial Segment: The segment provides industrial circuit protection, protective and monitoring relays, and controls and sensors for industrial applications.

Competitors (automotive suppliers)

-Amphenol
-Bourns
-Eaton
-Infineon Technologies
-Pacific Engineering
-MTA
-ON Semiconductor Corporation
-Semtech Corporation
-Sensata
-STMicroelectronics
-TDK
-TE Connectivity
-Vishay Intertechnology

Shareholders

-The Company is listed on the NASDAQ Stock Market.

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Products

Passenger Car Components
-Blade fuses
-Bladed devices
-Cartridge fuses
-Discrete thyristors
-Metal oxide semiconductor field effect transistor (MOSFET) devices
-Programmable Array Logic (PAL) fuses
-Bolt down fuses
-Advanced power system fuses
-Cable fuses
-Fuse holders
-Fuse pullers
-Gate drivers
-Power distribution centers
-Transient Voltage Suppression (TVS) diodes
-TVS diode arrays
-Ignition insulated-gate bipolar transistors (IGBT)
-Schottky diodes
-Switching thyristors
-Radial leaded varistors
-Surface mount varistors
-Varistors
-Earth fault relays
-Hybrid Electric Vehicle (HEV) fuses
-High current fuses
-High-voltage DC contactors
-High-voltage fuses
-LED protectors
-Metal oxide varistors
-Polymer electrostatic discharge (ESD) suppressors
-Rectifier diodes
-Reflowable Thermal Protectors (RTP)
-Resettable positive temperature coefficient (PTC) fuses
-Resistors, diodes and shunts
-Printed circuit boards
-Silicon Carbide (SiC) Schottky Diodes
-Surface-mount device (SMD) Autofuses
-Surge protective modules
-Tactile switches
-TD (Terminal Devices) and Chip Resettable PPTCs (Polymeric Positive Temperature Coefficient)
-Belt-buckle switches
-Water-in-fuel sensors
-Steering wheel switches
-Reed switches
-Reed relays
-Reflowable Thermal Protectors RTP
-Fuel Heater
-Fuel Heater Module

Sensors
-Rotary sensors
-Speed sensors
-Direction sensors
-Solar sensors
-Blow-by heaters
-Diesel exhaust fluid (DEF)/Urea heaters
-Diesel exhaust fluid/urea level sensors
-Presence sensors
-Seat occupancy sensors
-Linear position sensors
-Fuel sensors
-Clutch sensors
-Fluid level sensors
-Water-in-fuel sensors　
-Transmission/Engine Speed Sensor
-Transmission Fork Position Sensor
-Seat Belt Buckle Sensor
-Tailgate Speed and Direction Sensors
-Rain and Humidity/Temperature Sensor
-Coolant Level Sensor
-Transmission Shifter Position Sensor
-Dual Seat Belt Buckle and Tension Sensor

Commercial Vehicle Components
Battery Management
-Battery combiners
-Battery disconnect switches
-Battery isolators
-Electromagnetic battery disconnect switches
-FlexMod electronic modules
-Liftgate battery protection
-Low voltage disconnects
-Time delay and high power relays
-Timers

PDMs, Fuse Holders and Accessories
-Configurable power distribution modules (PDM)
-Hard wired PDMs
-Fuse only PDMs
-Unsealed PDMs
-POWR-BLOK modilar distribution modules
-Fuse holders
-In-line fuse holders
-Bolt-down single fuse holders
-Fuse blocks
-Junction blocks

Fuses
-Blade fuses
-Indicator fuses
-Bolt down fuses
-Cartridge fuses

Switches
-Ignition switches
-Momentary switches
-Push-pull switches
-Remote switches
-Rocker switches
-Rotary and headlamp switches
-Special purpose switches
-Toggle switches
-Windshield wiper switches

DC Solenoids and Relays
-Bi-stable relays
-Compact relays and microrelays
-Double pole relays
-Normally open relays
-Plug-in relays
-Single pole relays
-Solid state relays
-Specialty relays

Miscellaneous Components
-Circuit breakers
-Electrical connectors
-Pilot lights
-Alarms
-Lamps and lamp sockets
-Gas discharge tubes
-Current transformers

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History

1927	Established by Edward V. Sundt.
1927	Invented the first small, fast-acting protective fuses.
1930	Introduced automotive fuses.
1976	Introduced ATO blade fuses.
1989	Introduced MINI fuses.
1994	Introduced MIDI bolt-on type automotive fuses for high electric current for European markets.
Oct. 1995	Acquired 51% interest in Samjoo Elec. Ind. Co. Ltd. a South Korean fuse manufacturer and changed the name to Sam Hwa Littelfuse, Inc.
Mar. 1997	Acquired 97% interest in Samjoo Elec. Ind. Co. Ltd. a South Korean fuse manufacturer and changed the name to Littelfuse Triad.
Mar. 1998	Consolidated its Korean operations into Littelfuse Triad.
Aug. 1999	Acquired the Suppression Products Group, a division of Harris Corporation in Ireland.
Jul. 2002	Acquired Semitron Industries Limited of Swindon, England.
Jul. 2003	Acquired Teccor Electronics.
May 2004	Acquired Heinrich Industrie AG, a holding company for the Wickmann Group. Wickmann Group is a manufacturer of circuit protection products in Germany.
Dec. 2010	Acquired Cole Hersee.
May 2012	Acquired ACCEL AB.
Sep. 2012	Acquired Terra Power Systems.
May 2013	Acquired Hamlin, Inc., a sensor technology provider, from Key Safety Systems for USD 144.4 million.
Mar. 2016	Completed its acquisition of the circuit protection business of TE Connectivity Ltd. for USD 350 million in cash.
Apr. 2016	Completed the acquisition of Menber’s S.p.A., headquartered in Legnago, Italy.
Aug. 2016	Completed acquisition of a select product portfolio from ON Semiconductor Corporation. The product portfolio includes transient voltage suppression (TVS) diodes, switching thyristors and insulated gate bipolar transistors (IGBT) for automotive ignition applications. The purchase price was USD 104 million.
Jul. 2017	Acquired assets of U.S. Sensor Corporation for USD 24.3 million. U.S. Sensor specializes in the development and manufacturing of thermistors and probe assemblies for temperature sensing applications.
Jan. 2018	Acquired IXYS Corporation, a company specializing in the power semiconductor and integrated circuit markets with a focus on medium-to-high voltage power control semiconductors, for approximately USD 856.5 million.
Nov. 2018	Acquired Monolith Semiconductor, Inc.
Jan. 2021	Acquired Hartland Controls, a manufacturer and leading supplier of electrical components used primarily in HVAC.
Nov. 2021	Acquired Carling Technologies, a leader in switching, circuit protection and power distribution technologies, for USD 315 million.
Apr. 2022	Acquired Embed Ltd., a provider of embedded software and firmware developed, for USD 9.2 million.
Jul. 2022	Acquired C&K Switches, a U.S. automotive and medical equipment switch maker, for USD 540 million.
Feb. 2023	Acquired Western Automation Research and Development Limited, a manufacture of electroshock protection devices.