Onboard filtering device for connector

A removable filtering device with a dielectric layer and ferromagnetic ceramic vias addresses the challenges of bulkiness, reliability, and inspection issues in existing connectors, offering a compact, reliable, and easily inspectable solution for electrical connectors in embedded systems.

FR3166510A1Pending Publication Date: 2026-03-20SAFRAN ELECTRONICS & DEFENSE (FR)
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Patent Information

Application Number
FR2024009860
Authority / Receiving Office
FR · FR
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-09-17
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Existing filtering solutions for electrical connectors in embedded systems are bulky, require specialized manufacturing, lack reliability, and are difficult to inspect, leading to potential failures and increased costs due to complex assembly processes and fragility of components like ferrites.

Method used

A removable filtering device using a dielectric layer with embedded ferromagnetic ceramic vias, allowing easy installation and replacement, compatible with standard connectors, and enabling quick visual or X-ray inspection.

Benefits of technology

The solution provides a compact, reliable, and easily inspectable filtering device that reduces noise in electrical signals, enhances system compatibility, and minimizes production disruptions by allowing manufacturers to produce and maintain the device independently.

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Abstract

On-board filtering device for connector. One aspect of the invention relates to a filtering device (10) intended to be connected with an electrical connector (20). The filtering device comprises a layer (11) of dielectric material, which includes a plurality of first vias formed in its thickness. Ferromagnetic ceramic is deposited in each first via on one periphery thereof. The filtering device is intended to cooperate with the electrical connector by inserting a plurality of pins (21) of said electrical connector into the plurality of first vias. Each pin is inserted into the magnetic circuit created by the ferromagnetic ceramic in the corresponding first via. The thickness of the dielectric layer is such that the plurality of pins of the electrical connector protrudes from the dielectric layer when said pins are inserted. Figure to be published with the abbreviation: Figure 2
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