三協インタナショナル List of Products and Services

The original TSG lead relay from Sankyo International is available in a series with high voltage resistance and high insulation, ready for short delivery times. The packages include a tubular type with excellent cost performance, a flange type with superior mountability, and options for inch grid PC boards. The high voltage resistance series supports up to 30,000 VDC in standard specifications and up to 50,000 VDC in custom specifications. The high insulation series offers products with a maximum of over 3×10^15 Ω. The low thermal electromotive force type achieves a thermal electromotive force of less than 2 μV. (Please inquire about delivery times.)

Isolated DC/DC converters are available in over 350 types, including on-board, surface mount, and DIN rail mount options. For the on-board type, a chassis mount installation kit is available as an option (sold separately). The AC/DC linear series power supplies adopt a dropper method to achieve "low noise." The chassis mount type allows for wiring to be secured without twisting, thanks to a special "clamp" type barrier strip. For the on-board type, a chassis mount installation kit and a PC card installation kit are available as options (sold separately). [For more details, please download the catalog or feel free to contact us.]

COMUS's reed switches (GC series) offer a wide range of options, including high-capacity, high-voltage, compact general-purpose, switching types, surface mount types, and molded types, as well as contact types A and C. The COTO brand (RI series) reed switches have been used in semiconductor testing machines for many years, and their reliability and lifespan characteristics are unparalleled worldwide. The contact material is made of ruthenium, so there is no risk of price increases like those seen with rhodium contacts.

We have variations of withstand voltage from DC 3KV to 30KV. They are used in various insulation testing devices, dielectric strength testing equipment, and cable testing devices. Quick delivery is possible.

The COMUS reed relays offer a lineup that is not covered by our TSG reed relays. They use high-reliability, long-life COTO reed switches, and we provide quality assurance through acceptance testing and other measures before delivery.

The international standards include certifications such as CE, TUV, KC, PSE, and CCC in addition to UL. It can be used as a combined AC/DC (3-pole AC only). The overcurrent interruption is based on an electromagnetic method, which is more appropriate and effective for circuit protection than thermal (bimetal) methods. It is designed to easily identify the ON and OFF states from a distance, making it suitable for control panels. The structure of the trip handle is designed to prevent malfunctions caused by light contact.

Our company was established in 1962 with the aim of selling imported reed switches and reed relays. Based on the knowledge we have cultivated since our founding, we will introduce reed switches in as easy-to-understand a manner as possible. Part 1: "Structure, Operating Principle, and Usage of Reed Switches" Part 2: "Contact Forms and Types of Reed Switches" Part 3: "Materials of Reed Switches" Part 4: "Magnetic Characteristics of Reed Switches" Part 5: "Electrical Characteristics of Reed Switches" Part 6: "Mechanical and Environmental Characteristics of Reed Switches"