Coto Technology, Inc. originated in Providence, Rhode Island, USA in 1917 as Coto Coil Incorporated – a company specializing in the design and manufacture of coil windings. During the mid-1960’s, Coto expanded its product line by introducing the reed relay – the result of integrating reed switches into coil windings. 


Today, Coto is a worldwide market leader of small signal switching products sold into the Automatic Test Equipment, Data Acquisition, Instrumentation, Process Control, Telecommunications, Medical and Security markets. Coto specializes in the manufacture of relay, switch and sensor products.


Coto Relay TMR Magnetic Sensors and Switches
TMR Magnetic Sensors and Switches

Using proven TMR (Tunneling Magnetoresistance) technology, the TMR Magnetic Sensor devices offer the lowest power consumption, highest sensitivity, ultra-miniature package size, short lead times at a highly-competitive price.

Coto Relay Classic™ Molded Reed Switches
Classic™ Molded Reed Switches

Coto Classic Molded Switches are single-pole, single throw (SPST) with normally open ruthenium contacts. It comes in 2 main series CT05 and CT10.

Coto Relay Classic™ Reed Relays
Classic™ Reed Relays

The Coto Classic™ Reed Relays are capable of carrying up to six amps, and can provide switching currents up to four amps along with 10-15 KV switching suitable for a multitude of applications. All relays are qualified to the highest electrical test specifications.

Coto Relay CotoMOS® MOSFET Relays
CotoMOS® MOSFET Relays

Using highly-reliable, custom designed, Mosfet technology, CotoMos Mosfet Relays are a reliable, switching solution for applications requiring low input power and virtually unlimited life.