Our Markets

For more than 30 years, Sumitomo Electric Interconnect Products Inc. has manufactured high quality products for the automotive, aerospace, military, transportation, commercial and medical markets. Our advanced identification products are designed and made to meet the exacting requirements of these industries and satisfy numerous government and commercial specifications and approvals.

For assistance with design-in projects or specification development and matching, please visit our Technical Support section.


Our aerospace customers value our experience and technical competence and our ability to design and manufacture products that can keep pace with their constantly changing demands. We offer a wide range of identification products, all of which meet the stringent specifications of the aerospace industry and perform to the highest standards in the most challenging environments.

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Leveraging a tradition of creating transportation products and a global manufacturing network, we offer a wide variety of products designed for use in subway, above ground, trackside, wayside, signaling and rolling stock. Our extensive experience with rail products around the world ensures our customers receive the highest quality products available on the market.

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Our expertise has made Sumitomo Electric Interconnect Products Inc. a leading global supplier within the automotive industry, both in Japan and around the world. We provide manufacturers with an extensive range of reliable and cost-efficient identification products that are suitable for a wide range of applications.
Sumitomo Automotive Brochure

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Sumitomo Electric Interconnect Products Inc. offers the widest range of heat-shrink tubing products designed for applications requiring a combination of high quality and cost effectiveness. From 2:1, 3:1 and 4:1 shrink ratios, adhesive-lined and high temperature products, we can cover all your needs.

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Our advanced Medical grade tubing is designed for abrasion protection and insulation in medical instruments. Sumitomo medical grade products are compliant to RoHS and USP class VI biocompatibility. Medical products are offered in thin-wall polyolefins and PVDF for high temperature applications.

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Sumitomo has decades of experience in developing products for the specialized needs of the energy sector. Our products are designed to accommodate the various environmental, high temperature and UV conditions for above and below ground applications.

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Heavy Equipment

As a world class manufacturer of heat shrink tubing, Sumitomo has a complete range of products for Trucks, Earth Moving Equipment and Agricultural machinery.

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For any information please Contact Us

Sumitomo Electric Interconnect Products, Inc.
915 Armorlite Drive, San Marcos, CA 92069

T: (760) 761.0600 info@seipusa.com

World leaders in identification
and heat-shrink technology

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