BELFA, BELFB · CIK 0000729580 · operating
Bel Fuse designs, manufactures, and sells electronic components that perform power delivery, circuit protection, and signal transmission functions across industrial and commercial applications. The company's product portfolio spans power supplies, connector systems, transformers, inductors, and protective devices serving customers in networking, telecommunications, computing, aerospace, defense, transportation, and e-Mobility sectors.
The company operates through three primary business segments. Power Solutions and Protection encompasses front-end power supplies, board-mount power products, industrial and transportation power solutions, military and aerospace-qualified products, and circuit protection devices. Connectivity Solutions provides expanded beam fiber optic connectors, copper and radio frequency connectors with associated cable assemblies, and Ethernet and industrial connectivity products. Magnetic Solutions includes integrated connector modules, power transformers, surface-mount inductors, and transformer components for switching power supplies.
Bel Fuse operates with approximately 4,964 full-time employees and maintains a global distribution network spanning North America, Europe, the Middle East, and Asia. The company reaches customers through direct strategic account managers, regional sales personnel working with independent sales representatives, and authorized distributor channels. Incorporated in 1949, Bel Fuse is headquartered in West Orange, New Jersey.
Fiscal years are as reported by the company and may not align with the calendar year. For example, Apple's FY 2024 ends in September 2024.
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| 2025 | — | — | — | |
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| Report Date | Filed | Accession Number | |
|---|---|---|---|
| 2025-12-31 | 2026-02-24 | 0001437749-26-005354 | SEC ↗ |
| 2024-12-31 | 2025-02-28 | 0001437749-25-005652 | SEC ↗ |
| 2023-12-31 | 2024-03-11 | 0001437749-24-007265 | SEC ↗ |
| 2022-12-31 | 2023-03-10 | 0001437749-23-006172 | SEC ↗ |
| 2021-12-31 | 2022-03-14 | 0001437749-22-006139 | SEC ↗ |
| 2020-12-31 | 2021-03-12 | 0001437749-21-005899 | SEC ↗ |
| 2019-12-31 | 2020-03-25 | 0001437749-20-006060 | SEC ↗ |
| 2018-12-31 | 2019-03-08 | 0000729580-19-000007 | SEC ↗ |
| 2017-12-31 | 2018-03-09 | 0000729580-18-000006 | SEC ↗ |
| 2016-12-31 | 2017-03-10 | 0000729580-17-000006 | SEC ↗ |
| 2015-12-31 | 2016-03-11 | 0000729580-16-000036 | SEC ↗ |
| 2014-12-31 | 2015-03-13 | 0000729580-15-000009 | SEC ↗ |
| 2013-12-31 | 2014-03-13 | 0000729580-14-000005 | SEC ↗ |
| 2012-12-31 | 2013-03-12 | 0000729580-13-000006 | SEC ↗ |
| 2011-12-31 | 2012-03-12 | 0000729580-12-000005 | SEC ↗ |
| 2010-12-31 | 2011-03-11 | 0000729580-11-000009 | SEC ↗ |
| 2009-12-31 | 2010-03-12 | 0001144204-10-013110 | SEC ↗ |
| 2008-12-31 | 2009-03-13 | 0001144204-09-013931 | SEC ↗ |
| 2007-12-31 | 2008-03-17 | 0001144204-08-015714 | SEC ↗ |
| 2006-12-31 | 2007-03-16 | 0001144204-07-013141 | SEC ↗ |
| 2005-12-31 | 2006-03-16 | 0001144204-06-010168 | SEC ↗ |
| 2004-12-31 | 2005-03-31 | 0001144204-05-009461 | SEC ↗ |
| 2003-12-31 | 2004-03-12 | 0001005150-04-000740 | SEC ↗ |
| 2002-12-31 | 2003-03-26 | 0001005150-03-000652 | SEC ↗ |
| 2001-12-31 | 2002-03-28 | 0000950110-02-000158 | SEC ↗ |
| 2000-12-31 | 2001-03-19 | 0000950110-01-000244 | SEC ↗ |
| 1999-12-31 | 2000-03-29 | 0000950110-00-000254 | SEC ↗ |
| 1998-12-31 | 1999-03-29 | 0000950110-99-000415 | SEC ↗ |
| 1997-12-31 | 1998-03-30 | 0000950110-98-000340 | SEC ↗ |
| 1996-12-31 | 1997-03-31 | 0000950110-97-000545 | SEC ↗ |