EveryTie.

Littelfuse — Supply Chain & Business Relationships

Every relationship below is sourced to a verbatim quote from a public company filing that names the counterparty, with a one-click link to the original document.

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3 suppliers2 customers15 competitors4 ownership ties1 source filing

Featured in supply-chain maps: Analog & Power Semiconductors

Customers (companies it supplies)

Supplies to → Arrow

Filed 2026-02-19 · 183 days ago

“Sales to Arrow Electronics, Inc., which were reported in our Electronics, Transportation, and Industrial segments, were 9.5%, 9.4%, and 11.2% of consolidated net sales in 2025, 2024, and 2023, respectively.”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Supplies to → Powersem Equity-method associate ~45%

Filed 2026-02-19 · 183 days ago

“Fiscal Year Ended December 27, 2025 December 28, 2024 (in millions) Powersem EB Tech ATEC Powersem EB Tech ATEC Sales to related party $ 1.2 $ — $ — $ 1.5 $ — $ — Purchase of material/services from related party 2.2 0.9 9.0 3.8 0.7 5.7 Accounts payable balance $ 0.1 $ 0.1 $ 2.1 $ 0.7 $ 0.1 $ 0.7”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Suppliers (companies that supply it)

Supplied by ← Powersem Equity-method associate ~45%

Filed 2026-02-19 · 183 days ago

“Powersem GmbH: The Company owns 45 % of the outstanding equity of Powersem GmbH (“Powersem”), a module manufacturer based in Germany. … Fiscal Year Ended December 27, 2025 December 28, 2024 (in millions) Powersem EB Tech ATEC Powersem EB Tech ATEC Sales to related party $ 1.2 $ — $ — $ 1.5 $ — $ — Purchase of material/services from related party 2.2 0.9 9.0 3.8 0.7 5.7 Accounts payable balance $ 0.1 $ 0.1 $ 2.1 $ 0.7 $ 0.1 $ 0.7”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Supplied by ← Eb Tech Equity-method associate ~15%

Filed 2026-02-19 · 183 days ago

“EB-Tech Co., Ltd.: The Company owns approximately 15 % of the outstanding equity of EB-Tech Co., Ltd. (“EB Tech”), a company with expertise in radiation technology based in South Korea. … Fiscal Year Ended December 27, 2025 December 28, 2024 (in millions) Powersem EB Tech ATEC Powersem EB Tech ATEC Sales to related party $ 1.2 $ — $ — $ 1.5 $ — $ — Purchase of material/services from related party 2.2 0.9 9.0 3.8 0.7 5.7 Accounts payable balance $ 0.1 $ 0.1 $ 2.1 $ 0.7 $ 0.1 $ 0.7”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Supplied by ← Automated Technology Phil Equity-method associate ~24%

Filed 2026-02-19 · 183 days ago

“Automated Technology (Phil), Inc. : The Company owns approximately 24 % of the outstanding common shares of Automated Technology (Phil), Inc. (“ATEC”), a supplier located in the Philippines that provides assembly and test services. … Fiscal Year Ended December 27, 2025 December 28, 2024 (in millions) Powersem EB Tech ATEC Powersem EB Tech ATEC Sales to related party $ 1.2 $ — $ — $ 1.5 $ — $ — Purchase of material/services from related party 2.2 0.9 9.0 3.8 0.7 5.7 Accounts payable balance $ 0.1 $ 0.1 $ 2.1 $ 0.7 $ 0.1 $ 0.7”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Competitors

Competes with ↔ Eaton

Filed 2026-02-19 · 183 days ago

“In the Electronics segment, the Company’s competitors include Eaton Corporation, Bourns Inc., TDK, ON Semiconductor Corporation, Infineon Technologies, STMicroelectronics NV, Semtech Corporation, and Vishay Intertechnology Inc. … In the Transportation segment, the Company’s competitors include Eaton Corporation, Pacific Engineering, MTA (Meccanotecnica Codognese), Amphenol Corporation, Sensata Technologies Holding NV, and TE Connectivity Ltd. … In the Industrial segment, the Company’s competitors include Eaton Corporation, GE Multilin, and Mersen.”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Competes with ↔ Bourns

Filed 2026-02-19 · 183 days ago

“In the Electronics segment, the Company’s competitors include Eaton Corporation, Bourns Inc., TDK, ON Semiconductor Corporation, Infineon Technologies, STMicroelectronics NV, Semtech Corporation, and Vishay Intertechnology Inc.”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Competes with ↔ Tdk

Filed 2026-02-19 · 183 days ago

“In the Electronics segment, the Company’s competitors include Eaton Corporation, Bourns Inc., TDK, ON Semiconductor Corporation, Infineon Technologies, STMicroelectronics NV, Semtech Corporation, and Vishay Intertechnology Inc.”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Competes with ↔ onsemi

Filed 2026-02-19 · 183 days ago

“In the Electronics segment, the Company’s competitors include Eaton Corporation, Bourns Inc., TDK, ON Semiconductor Corporation, Infineon Technologies, STMicroelectronics NV, Semtech Corporation, and Vishay Intertechnology Inc.”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Competes with ↔ Infineon

Filed 2026-02-19 · 183 days ago

“In the Electronics segment, the Company’s competitors include Eaton Corporation, Bourns Inc., TDK, ON Semiconductor Corporation, Infineon Technologies, STMicroelectronics NV, Semtech Corporation, and Vishay Intertechnology Inc.”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Competes with ↔ STMicroelectronics

Filed 2026-02-19 · 183 days ago

“In the Electronics segment, the Company’s competitors include Eaton Corporation, Bourns Inc., TDK, ON Semiconductor Corporation, Infineon Technologies, STMicroelectronics NV, Semtech Corporation, and Vishay Intertechnology Inc.”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Competes with ↔ Semtech

Filed 2026-02-19 · 183 days ago

“In the Electronics segment, the Company’s competitors include Eaton Corporation, Bourns Inc., TDK, ON Semiconductor Corporation, Infineon Technologies, STMicroelectronics NV, Semtech Corporation, and Vishay Intertechnology Inc.”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Competes with ↔ Vishay

Filed 2026-02-19 · 183 days ago

“In the Electronics segment, the Company’s competitors include Eaton Corporation, Bourns Inc., TDK, ON Semiconductor Corporation, Infineon Technologies, STMicroelectronics NV, Semtech Corporation, and Vishay Intertechnology Inc.”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Competes with ↔ Pacific Engineering

Filed 2026-02-19 · 183 days ago

“In the Transportation segment, the Company’s competitors include Eaton Corporation, Pacific Engineering, MTA (Meccanotecnica Codognese), Amphenol Corporation, Sensata Technologies Holding NV, and TE Connectivity Ltd.”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Competes with ↔ Mta Meccanotecnica Codognese

Filed 2026-02-19 · 183 days ago

“In the Transportation segment, the Company’s competitors include Eaton Corporation, Pacific Engineering, MTA (Meccanotecnica Codognese), Amphenol Corporation, Sensata Technologies Holding NV, and TE Connectivity Ltd.”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Competes with ↔ Amphenol

Filed 2026-02-19 · 183 days ago

“In the Transportation segment, the Company’s competitors include Eaton Corporation, Pacific Engineering, MTA (Meccanotecnica Codognese), Amphenol Corporation, Sensata Technologies Holding NV, and TE Connectivity Ltd.”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Competes with ↔ Sensata Technologies

Filed 2026-02-19 · 183 days ago

“In the Transportation segment, the Company’s competitors include Eaton Corporation, Pacific Engineering, MTA (Meccanotecnica Codognese), Amphenol Corporation, Sensata Technologies Holding NV, and TE Connectivity Ltd.”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Competes with ↔ TE Connectivity

Filed 2026-02-19 · 183 days ago

“In the Transportation segment, the Company’s competitors include Eaton Corporation, Pacific Engineering, MTA (Meccanotecnica Codognese), Amphenol Corporation, Sensata Technologies Holding NV, and TE Connectivity Ltd.”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Competes with ↔ Ge Multilin

Filed 2026-02-19 · 183 days ago

“In the Industrial segment, the Company’s competitors include Eaton Corporation, GE Multilin, and Mersen.”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Competes with ↔ Mersen

Filed 2026-02-19 · 183 days ago

“In the Industrial segment, the Company’s competitors include Eaton Corporation, GE Multilin, and Mersen.”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Ownership & investments

Invests in → Polytronics Technology

Filed 2026-02-19 · 183 days ago

“the Company has an investment in Polytronics Technology Corporation Ltd.”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Invests in → Powersem Equity-method associate ~45%

Filed 2026-02-19 · 183 days ago

“The Company owns 45 % of the outstanding equity of Powersem GmbH”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Invests in → Eb Tech Equity-method associate ~15%

Filed 2026-02-19 · 183 days ago

“approximately 15 % of the outstanding equity of EB Tech Co., Ltd.”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Invests in → Automated Technology Phil Equity-method associate ~24%

Filed 2026-02-19 · 183 days ago

“approximately 24 % of the outstanding common shares of Automated Technology (Phil), Inc., a supplier located in the Philippines that provides assembly and test services”
— LFUS 10-K, filed 2026-02-19 EDGAR · View source filing ↗

Filed activity

Filings by Littelfuse itself, from our archive: US SEC earnings filings (Form 8-K Item 2.02 and Form 6-K results reports) since 2025-07-22, plus Taiwan Stock Exchange material announcements where covered. Not a complete filing history; subjects appear verbatim in their original language.

2026-07-29Earnings releaseLittelfuse Reports Second Quarter Results for 2026

Second Quarter Highlights: (Year-over-year comparisons unless otherwise noted) • Net sales of $739 million, +20%; organic growth contributed +14% • Cash flow from operations of $146 million; free cash flow of $127 million, +75% • YTD Cash flow from operations of $226 million; free cash flow of $193 million, +68% • GAAP diluted earnings per share of $3.49;
Show more from the filing
Adjusted diluted earnings per share of $4.19 • GAAP operating margin of 16.2%, +110 bps; Adjusted EBITDA margin of 23.6%, +220 bps • Cash dividend of $0.80 per share, annualized to $3.20 per share, +7% CHICAGO, July 29, 2026 - Littelfuse, Inc. (NASDAQ: LFUS), a leader in developing smart solutions that enable safe and efficient electrical energy transfer, today reported financial results for its second quarter ended June 27, 2026: “We delivered strong second quarter results, with performance exceeding our expectations reflecting broad-based demand strength and disciplined execution across the portfolio,” said Greg Henderson, Littelfuse President and Chief Executive Officer.

— Form 8-K · Items 2.02, 7.01, 9.01 · US SEC EDGAR · View source filing ↗

2026-05-06Earnings releaseLITTELFUSE REPORTS FIRST QUARTER RESULTS

FOR 2026 First Quarter 2026 Highlights: (Year-over-year comparisons unless otherwise noted) • Net sales of $657 million, +19%; organic growth contributed +9% • Cash flow from operations of $80 million; free cash flow of $66 million, +55% • GAAP diluted earnings per share of $2.96; Adjusted diluted earnings per share of $3.31 • GAAP operating margin of 15.4%, +270 bps;
Show more from the filing
Adjusted EBITDA margin of 22.9%, +280 bps CHICAGO, May 6, 2026 - Littelfuse, Inc. (NASDAQ: LFUS), a leader in developing smart solutions that enable safe and efficient electrical energy transfer, today reported financial results for the first quarter ended March 28, 2026: “Our teams delivered a strong start to the year, with first quarter results exceeding our expectations,” said Greg Henderson, Littelfuse President and Chief Executive Officer. “We capitalized on solid market demand and executed well on our strategic priorities while leveraging our leadership in safe and efficient electrical energy transfer.

— Form 8-K · Items 2.02, 7.01, 9.01 · US SEC EDGAR · View source filing ↗

2026-01-28Earnings releaseLittelfuse Reports Fourth Quarter and Full Year 2025 Results

Fourth Quarter Highlights: (Year-over-year comparisons unless otherwise noted) • Net sales of $594 million, +12%; organic growth contributed +7% • Cash flow from operations of $139 million and free cash flow of $120 million • Recorded non-cash goodwill impairment charge of $301 million related to the Semiconductor Products business within the Electronics Segment
Show more from the filing
• GAAP diluted loss per share of ($9.72); Adjusted diluted earnings per share of $2.69 • GAAP operating margin of (-37.5%); Adjusted EBITDA margin of 20.5%, +480 bps Full Year Highlights: (Year-over-year comparisons unless otherwise noted) • Net sales of $2,386 million, +9%; organic growth contributed +6% • Cash flow from operations of $434 million and free cash flow of $366 million • GAAP diluted loss per share of ($2.89), which includes a non-cash goodwill impairment charge of $301 million related to the Semiconductor Products business within the Electronics Segment • Adjusted diluted earnings per share of $10.68, +34% • GAAP operating margin of 1.6%; Adjusted EBITDA margin of 20.9%, +260 bps CHICAGO, January 28, 2026 - Littelfuse, Inc.

— Form 8-K · Items 2.02, 7.01, 9.01 · US SEC EDGAR · View source filing ↗

2025-10-29Earnings releaseLITTELFUSE REPORTS THIRD QUARTER RESULTS

FOR 2025 Third Quarter 2025 Highlights: (Year-over-year comparisons unless otherwise noted) • Net sales of $625 million, +10%; organic growth contributed +6.5% • GAAP diluted earnings per share of $2.77, +19% • Adjusted diluted earnings per share of $2.95, +9% • GAAP Operating margin of 15.6%, +10 bps; Adjusted EBITDA margin of 21.5%, (-20 bps)
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• YTD Cash flow from operations of $295 million and free cash flow of $246 million; YTD cash conversion of 145% CHICAGO, October 29, 2025 - Littelfuse, Inc. (NASDAQ: LFUS), a leader in developing smart solutions that enable safe and efficient electrical energy transfer, today reported financial results for the third quarter ended September 27, 2025: “We are pleased with our third quarter performance as we delivered strong revenue growth versus the prior year while our adjusted diluted earnings exceeded the high end of our guidance range reflecting solid execution amid mixed end market conditions,” said Greg Henderson, Littelfuse President and Chief Executive Officer.

— Form 8-K · Items 2.02, 7.01, 9.01 · US SEC EDGAR · View source filing ↗

2025-07-30Earnings releaseLITTELFUSE REPORTS SECOND QUARTER RESULTS

FOR 2025 Second Quarter 2025 Highlights: (Year-over-year comparisons unless otherwise noted) • Net sales of $613 million, +9.8%; organic growth contributed +6.2% • GAAP diluted earnings per share of $2.30, +26% • Adjusted diluted earnings per share of $2.85, +45% • GAAP Operating margin of 15.1%, +340 bps; Adjusted EBITDA margin of 21.4%, +280 bps
Show more from the filing
• YTD Cash flow from operations of $148 million and free cash flow of $115 million; YTD cash conversion of 114% • The Company’s Board of Directors approved a 7% increase in the quarterly cash dividend from $0.70 to $0.75; this equates to an annualized dividend of $3.00 per share CHICAGO, July 30, 2025 - Littelfuse, Inc. (NASDAQ: LFUS), a leader in developing smart solutions that enable safe and efficient electrical energy transfer, today reported financial results for the second quarter ended June 28, 2025: “Our Q2 results exceeded our expectations, driven by solid growth and operational execution across our businesses,” said Greg Henderson, Littelfuse President and Chief Executive Officer.

— Form 8-K · Items 2.02, 7.01, 9.01 · US SEC EDGAR · View source filing ↗