Internal Connector Design and the Correct Amount of Epoxy

Published: July 2, 2018

, Last updated: September 17, 2025

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Internal connector design looks carefully at the internal lead in chamfer of the ceramic ferrule, the overall inside diameter of the flange holding the ceramic ferrule and the overall inside diameter of the connector back shell. All these can control the correct amount of epoxy (particularly for two-part mixed epoxy). Each connector manufacturer of fiber optic connectors has slight design changes in the overall internal geometry of the connector and can vary from manufacturer to manufacturer.

READ THE BLOG: Assuring the correct amount of Epoxy is in the connector

Additional resources from the FOC team include:

Category Resource:
- FOC Interconnect Page
- FOC Epoxy Page
View the Glossary, Acronyms, Military Specifications for Connectors
Q&A Resource: email technical questions to AskFOC@focenter.com

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FOC Tips Fiber Optic Center has a team of technical experts and marketing strategists with decades of years in the field. This team contributes to the fiber, cable and specialty industries coverage through news, alerts, reports and general media information.

About Fiber Optic Center, Inc.

Fiber Optic Center, Inc., (FOC), is an international leader in distributing fiber optic components, equipment and supplies and has been helping customers make the best cable assemblies in the world for over two decades. Several areas of specialization and expertise, in which they are the industry leader, make them the preferred choice for many of the world’s fiber professionals. In these key technology areas, FOC is "at least as technical as the manufacturer" about the products they sell. Striving to "make the business part easy," they offer outstanding and personal customer service, low or no minimum purchase order values, and from-stock delivery on industry-leading products and technology. FOC is the industry connection to the most innovative optical products, technologies and technical experts who integrate their manufacturing knowledge and vast experience into customers' worldwide operations. @FiberOpticCntr

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