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  6. [COTO] Launch of new compact molded type reed switch

[COTO] Launch of new compact molded type reed switch

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Coto Technology

last updated:Feb 18, 2026

セイワ 東京本社、関西支社、名古屋営業所、中国無錫  グループ会社 エレクトロン(長野県松本市)
セイワ 東京本社、関西支社、名古屋営業所、中国無錫  グループ会社 エレクトロン(長野県松本市)
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Mold type that can be implemented on the surface, highly reliable, and has undergone 100% shipping inspection.

Coto Technology has released a new product, the CT04 series, which features ultra-compact molded type reed switches. This molded single-pole single-throw (SPST) reed switch is equipped with normally open ruthenium contacts and offers versatility by operating with either an electromagnet, a permanent magnet, or both due to its end-type design. It is designed for surface mounting and is available in gull-wing or J-bend types. The CT04 is a redesigned version of Coto's popular CT05 series, maintaining the same PCB footprint while being optimized for mass production. This new version features magnetic switching characteristics and insulation properties. The CT04, equipped with hermetically sealed ruthenium contacts, is designed for long life and has passed operation tests for up to 1 billion cycles. Despite its compact and durable shape, it offers excellent performance and insulation. Additionally, a full inspection is conducted, including sensitivity range verification after the lead cutting and bending processes.

    relay
CT05_series_reed_relay_featuredimg.png

[COTO] Launch of new compact molded type reed switch

CT05_series_reed_relay_featuredimg.png
CT05_series_reed_relay_featuredimg.png CotoTechnology-Logo.png
  • Special site - Product/service details - https://pr.mono.ipros.com/seiwa-tr/product/

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basic information

- High reliability and long lifespan sealed contacts - tested for up to 1 billion operations - Surface mountable (tape & reel packaging) - Molded sealing for enhanced shock resistance - RoHS compliant

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Applications/Examples of results

Ideal for various applications requiring highly reliable magnetic sensors, such as proximity sensing, medical applications, hearing aids, and pulse counters.

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COTO CT04 Data Sheet

COTO CT04 Data Sheet

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Company information

セイワ

セイワ 東京本社、関西支社、名古屋営業所、中国無錫  グループ会社 エレクトロン(長野県松本市)

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The development of electronics has given people great dreams and has turned those dreams into reality, one by one. This development has been passed on to the 21st century, inspiring even greater dreams and hopes. I am deeply grateful and delighted to have been able to engage in work that contributes to this segment of the electronics industry. Moving forward, I will continue to serve as a conduit for the appropriate information on semiconductors and electronic components, so that I can help realize humanity's great dreams and support the product and information development of our clients. I am committed to walking alongside our clients and growing together in the information society of the 21st century. However, on the other hand, global environmental issues have become increasingly prominent. As a member of society, I feel the importance of leaving a rich natural environment for the future and preserving the fundamental value of humanity. I am determined to strive towards becoming a company that harmonizes with nature and society as we move towards an endless future.

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