• Connect our Future with TYC


      Creating solutions for a safer and more secure future.







    • Connect our Future with TYC


      Creating solutions for a safer and more secure future.







    • Connect our Future with TYC


      Creating solutions for a safer and more secure future.






    Connect our Future with TYC

    Creating solutions for a safer and more secure future.
  • Connect our Future with TYC

    Creating solutions for a safer and more secure future.
  • Connect our Future with TYC

    Creating solutions for a safer and more secure future.

Coaxial RF Connectors

Small-Batch, Multi-Variety Production

With over 70 years of experience, To-Conne specializes in coaxial RF connector solutions, welcoming small lot and prototype orders. We ensure top quality with short lead times.

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Cable assemblies banner
Digi-Key logo

Small Lots Produced & Delivered Fast
without Sacrificing Quality

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Our coaxial RF connector manufacturing experts have produced optimal solutions for thousands of companies. We welcome orders for small lots and prototypes.

Contact us to schedule a free consultation. If you decide to move forward, we will manufacture custom coaxial connectors optimal for your requirements to the highest quality standards and deliver them fast.

SMA Receptacle Special Panel Shape photo

SMA Receptacle Special Panel Shape

Special Connectors for Audio photo

Special Connectors for Audio

Gold-plated Special N-type Plug photo

Gold-plated Special N-type Plug

2600MHz F-relay connector photo

2600MHz F-relay Connector

SMA Waterproof Connector photo

SMA Waterproof Connector

F-substrate Connector photo

F-substrate Connector

SMA Board Screw Fix Connector photo

SMA Board Screw Fix Connector

N Connector for Mobile Infrastructure Equipment photo

N Connector for Mobile Infrastructure Equipment

Connector for Antenna photo

Connector for Antenna

SMA Length-specified L-bend Connector photo

SMA Length-specified L-bend Connector

Connector for Mobile Infrastructure Equipment for SMA photo

Connector for Mobile Infrastructure Equipment for SMA

Connector for BNC Measurement Equipment photo

Connector for BNC Measurement Equipment

Connector for BNC 12D Bend photo

Connector for BNC 12D Bend

Floating Receptacle photo

Floating Receptacle

N Special Panel Connector photo

N Special Panel Connector


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A Leader in Coaxial Connectors

We are the leading Japanese manufacturer of coaxial connectors, including custom orders for a broad range of operating environments.

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70+ Year Track Record

Through our history of over 70 years, we have accumulated profound expertise in all aspects of designing and manufacturing coaxial connectors.

To-conne made in Japan quality

The Highest Quality Standards

Through decades of "kaizen" (continuous refinement), we have achieved and industry-leading defect rate of less than 0.01%.


To-conne business long term relationships

Focus on Long-Term Relationships

From the very beginning, we work to build long-term customer relationships based on trust. Our highly experienced professionals are proactive in following up to ensure satisfaction.

JAB ISO certifications


Stable Supply & Production Management

Each team member is dedicated to meeting the highest international operation standards. We have held ISO certification for over 20 years.

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Committed to Environmental Sustainability

We are committed to conserving the environment for future generations and hold various international certifications, including RoHS and REACH.

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Communications & Mobile Device Components (50Ω)

Optimal for applications such as next-generation (5G) wireless communication, IoT, and data infrastructure.


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Video & Broadcast Equipment Solutions (75Ω)

Optimal for video and broadcast applications with specs including 12G-SDI compatibility and high-density mounting capabilities.

Talk to our Connector Experts

To-conne talk to to-conne experts

We can quickly provide you with the ideal coaxial connectors for your requirements. We welcome small lot orders. To get started, please send us details of your needs, and one of our experts will get back to you shortly.

Tel. +81-3-3939-9161

Office Hours
・EST (Eastern Standard Time): 20:00–04:00
・PST (Pacific Standard Time): 17:00–01:00
・CET (Central European Time): 02:00–10:00