Littelfuse — 供應鏈與商業關係
下方的每一段關係都源自公開公司申報文件中的逐字引用，點名了交易對手，並附有一鍵連結至原始文件。
點擊公司開啟其地圖 · 拖曳探索 · 游標懸停連線可閱讀來源引文。綠＝供應 · 橘虛線＝競爭 · 藍＝合作 · 紫＝持股 · 灰虛線＝暫停 · 如何閱讀這些資料。
3 家供應商2 家客戶15 家競爭對手4 持股關係1 份來源申報文件
收錄於供應鏈主題地圖：類比與電源半導體
客戶（其供應的公司）
供應給 →
Arrow
申報於 2026-02-19 · 193 天前
“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，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗Littelfuse 對 Arrow 的銷售額在 2025、2024、2023 年分別佔合併淨銷售額的 9.5%、9.4%、11.2%。（以原文為準）
申報於 2026-02-19 · 193 天前
“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，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗如原文表格所示，Littelfuse 與 Powersem 之間有關係人交易，包括銷售、採購及應付帳款。（以原文為準）
供應商（供應其產品或服務的公司）
申報於 2026-02-19 · 193 天前
“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，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗Littelfuse 持有 Powersem 45% 之已發行股權，且兩公司間有銷售及採購交易，金額如原文表格所示。（以原文為準）
申報於 2026-02-19 · 193 天前
“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，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗Littelfuse 持有 Eb Tech 約 15% 的股權，且雙方有關聯方交易，金額如原文表格所示。（以原文為準）
申報於 2026-02-19 · 193 天前
“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，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗Littelfuse 持有 Automated Technology Phil 約 24% 的普通股，且雙方有銷售及採購交易，如原文表格所示。（以原文為準）
競爭對手
相互競爭 ↔
Eaton
申報於 2026-02-19 · 193 天前
“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，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗Eaton 被列為 Littelfuse 在電子、交通運輸及工業領域的競爭對手。（以原文為準）
相互競爭 ↔
Bourns
申報於 2026-02-19 · 193 天前
“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，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗在電子元件領域，Littelfuse 的競爭對手包括 Bourns 等公司。（以原文為準）
相互競爭 ↔
Tdk
申報於 2026-02-19 · 193 天前
“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，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗Littelfuse 在電子領域將 TDK 列為競爭對手之一。（以原文為準）
相互競爭 ↔
onsemi
申報於 2026-02-19 · 193 天前
“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，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗在電子領域，onsemi 是 Littelfuse 的競爭對手之一。（以原文為準）
相互競爭 ↔
Infineon
申報於 2026-02-19 · 193 天前
“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，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗在電子元件領域，Littelfuse 的競爭對手包括 Infineon 等公司。（以原文為準）
相互競爭 ↔
STMicroelectronics
申報於 2026-02-19 · 193 天前
“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，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗Littelfuse 在電子部門的競爭對手包括 STMicroelectronics。（以原文為準）
相互競爭 ↔
Semtech
申報於 2026-02-19 · 193 天前
“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，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗Littelfuse 在電子領域的競爭對手包括 Semtech。（以原文為準）
相互競爭 ↔
Vishay
申報於 2026-02-19 · 193 天前
“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，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗在電子領域，Littelfuse 的競爭對手包括 Vishay 等公司。（以原文為準）
相互競爭 ↔
Pacific Engineering
申報於 2026-02-19 · 193 天前
“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，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗在交通運輸領域，Littelfuse 的競爭對手包括 Pacific Engineering。（以原文為準）
相互競爭 ↔
Mta Meccanotecnica Codognese
申報於 2026-02-19 · 193 天前
“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，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗在交通運輸領域，Littelfuse 的競爭對手包括 Mta Meccanotecnica Codognese。（以原文為準）
相互競爭 ↔
Amphenol
申報於 2026-02-19 · 193 天前
“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，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗在交通運輸領域，Littelfuse 的競爭對手包括 Amphenol。（以原文為準）
相互競爭 ↔
Sensata Technologies
申報於 2026-02-19 · 193 天前
“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，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗在交通運輸領域，Littelfuse 的競爭對手包括 Sensata Technologies 等公司。（以原文為準）
相互競爭 ↔
TE Connectivity
申報於 2026-02-19 · 193 天前
“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，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗Littelfuse 將 TE Connectivity 列為其運輸部門之競爭對手。（以原文為準）
相互競爭 ↔
Ge Multilin
申報於 2026-02-19 · 193 天前
“In the Industrial segment, the Company’s competitors include Eaton Corporation, GE Multilin, and Mersen.”— LFUS 10-K，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗Littelfuse 在工業領域將 GE Multilin 列為競爭對手之一。（以原文為準）
相互競爭 ↔
Mersen
申報於 2026-02-19 · 193 天前
“In the Industrial segment, the Company’s competitors include Eaton Corporation, GE Multilin, and Mersen.”— LFUS 10-K，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗Littelfuse 在工業領域的競爭者包括 Mersen。（以原文為準）
所有權與投資
投資於 →
Polytronics Technology
申報於 2026-02-19 · 193 天前
“the Company has an investment in Polytronics Technology Corporation Ltd.”— LFUS 10-K，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗Littelfuse 對 Polytronics Technology 有投資關係。（以原文為準）
申報於 2026-02-19 · 193 天前
“The Company owns 45 % of the outstanding equity of Powersem GmbH”— LFUS 10-K，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗Littelfuse 持有 Powersem 45% 的已發行股權。（以原文為準）
申報於 2026-02-19 · 193 天前
“approximately 15 % of the outstanding equity of EB Tech Co., Ltd.”— LFUS 10-K，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗Littelfuse 持有 EB Tech 約 15%的已發行股權。（以原文為準）
申報於 2026-02-19 · 193 天前
“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，申報於 2026-02-19 EDGAR · 查看原始申報文件 ↗Littelfuse 持有 Automated Technology Phil 約 24% 的已發行普通股，該供應商提供組裝與測試服務。（以原文為準）
公司公告
Littelfuse 自身的申報／公告，取自本站檔案：美國 SEC 財報申報（8-K Item 2.02 與 6-K 業績報告）自 2025-07-22 起，另含涵蓋範圍內的台灣證券交易所重大訊息。並非完整申報歷史；主旨一律以原文原樣呈現。
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;（申報原文節錄，以原文為準）顯示更多原文
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 · 項目 2.02, 7.01, 9.01 · 美國 SEC EDGAR · 查看原始申報文件 ↗
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;（申報原文節錄，以原文為準）顯示更多原文
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 · 項目 2.02, 7.01, 9.01 · 美國 SEC EDGAR · 查看原始申報文件 ↗
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（申報原文節錄，以原文為準）顯示更多原文
• 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 · 項目 2.02, 7.01, 9.01 · 美國 SEC EDGAR · 查看原始申報文件 ↗
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)（申報原文節錄，以原文為準）顯示更多原文
• 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 · 項目 2.02, 7.01, 9.01 · 美國 SEC EDGAR · 查看原始申報文件 ↗
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（申報原文節錄，以原文為準）顯示更多原文
• 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 · 項目 2.02, 7.01, 9.01 · 美國 SEC EDGAR · 查看原始申報文件 ↗