{"schema":"rootz.ai/sec-company/v1","layer":1,"cik":"0000889331","name":"LITTELFUSE INC /DE","summary":"Littelfuse, Inc. is a diversified industrial technology manufacturing company founded in 1927, operating across more than 20 countries with approximately 17,000 employees. The company designs, manufactures, and markets electronic components including fuses, MOSFETs, IGBTs, TVS diodes, switches, relays, sensors, and power semiconductors through three segments: Electronics, Transportation, and Industrial, serving data centers, automotive, aerospace, energy storage, and grid infrastructure markets.","people":[],"products":[{"name":"Fuses and Fuse Accessories","type":"hardware","description":"Circuit protection fuses including blade fuses, high-current and high-voltage fuses for electronics and vehicles."},{"name":"PTC Resettable Fuses","type":"hardware","description":"Positive temperature coefficient resettable fuses for overcurrent protection in electronics and transportation."},{"name":"TVS Diodes and Arrays","type":"hardware","description":"Transient voltage suppressor diodes and arrays for electronic circuit protection."},{"name":"Silicon Carbide MOSFETs","type":"hardware","description":"Silicon and silicon carbide metal-oxide-semiconductor field effect transistors for power applications."},{"name":"IGBT Technologies","type":"hardware","description":"Insulated gate bipolar transistors for power semiconductor applications."},{"name":"Electromechanical Switches and Interconnect Solutions","type":"hardware","description":"High-performance electromechanical switches and interconnect products for industrial, transportation, and datacom markets."},{"name":"Varistors","type":"hardware","description":"Voltage-dependent resistors used for overvoltage protection in electronic circuits."},{"name":"Gas Discharge Tubes","type":"hardware","description":"Surge protection components used in electronics and communications infrastructure."},{"name":"Polymer ESD Suppressors","type":"hardware","description":"Polymer electrostatic discharge suppressors for electronic circuit protection."},{"name":"Reed Switch Based Magnetic Sensing","type":"hardware","description":"Magnetic sensing components based on reed switch technology for industrial and electronics applications."},{"name":"Protective and Monitoring Relays","type":"hardware","description":"Protection relays, residual current devices, ground fault circuit interrupters, and arc fault detection devices for industrial use."},{"name":"Industrial Fuses","type":"hardware","description":"Circuit protection fuses for industrial applications including energy storage, HVAC, and renewables."},{"name":"Contactors and Transformers","type":"hardware","description":"Industrial controls including contactors and transformers for various industrial applications."},{"name":"Temperature Sensors","type":"hardware","description":"Sensors for monitoring temperature in industrial and vehicle environments."},{"name":"Power Distribution Modules and Units","type":"hardware","description":"Circuit protection and power distribution modules for commercial vehicle and heavy-duty truck markets."},{"name":"Battery Cable Protectors","type":"hardware","description":"Protection devices for battery cables in hybrid and electric vehicles."},{"name":"Embedded Software and Firmware (Embed)","type":"software","description":"Embedded software and firmware for commercial vehicle electronification and eMobility applications."},{"name":"Electrical Shock Protection Devices","type":"hardware","description":"Shock protection devices for EV charging infrastructure, industrial safety, and renewables from Western Automation."},{"name":"Electrical Control and Protection Solutions (Basler)","type":"hardware","description":"High-voltage excitation and high-energy protection systems for grid, power generation, and data center markets."}],"partnerships":[{"partner_name":"Elmos Semiconductor SE","partnership_type":"strategic","description":"Acquired 200mm wafer fab in Dortmund, Germany from Elmos Semiconductor SE to enhance power semiconductor supply chain.","start_date":null}],"affiliations":[],"origin":{"leaf":"ba49a09225fd5f1d38a54b5b7d803b5fa53590d82c68a0ad2aef4919aec5e8dc","formula":"v2: sha256( sha256(content) || parent || source_accession )","content_sha256":"64caf71f0212097dcf87703ba66afb3dbce8ee698aaccf86120e532de2e19b4c","parent":"2a878ededfbb293d5a4db262d910979c680175986870f855e5a9f3e7a2253fe6","source":"0001628280-26-009585","chain":"sec.gov/EDGAR (retrieved over TLS, accession recorded) > origin.rootz.global extraction > this response","registry":"origin.rootz.global","verify":"Recompute it: sha256(sha256(<this response body minus the origin block>) || parent || source_accession). 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