What is Ampere Turns (AT) for Reed Relays/ Reed Relays? - FAQs | Toward Technologies, Inc.

Ampere-turns (AT) is a specification used to measure the magnetic sensitivity of reed switches. A reed switch is an electrical component that contains two ferromagnetic reeds that are hermetically sealed in a glass envelope. When a magnetic field is applied to the switch, the reeds move and make contact, completing the electrical circuit.Ampere-turns (AT) is a measure of the magnetic field strength required to actuate the reed switch. It is determined by multiplying the number of turns in the coil by the current flowing through it. The higher the AT rating, the more sensitive the reed switch and the lower the magnetic field required to actuate it.In general, a higher AT rating indicates a less sensitive reed switch that can be activated by larger magnets or with a stronger magnetic field. Therefore, it is important to choose a reed switch with an appropriate AT rating for the intended application to ensure reliable and efficient operation. Manufacturer of Opto-MOSFET Solid State Relays, Reed Relays, and RF MEMS Switches. We mainly serve the Semiconductor Testing, ATE, BMS (Battery Management Systems), industrial machinery and Electric Vehicle industries.

What is Ampere Turns (AT) for Reed Relays/ Reed Relays?

Toward Technologies, Inc. is a manufacturer of Solid State Relays, Reed Relays and MEMS Switches.

What is Ampere Turns (AT) for Reed Relays/ Reed Relays?

Ampere-turns (AT) is a specification used to measure the magnetic sensitivity of reed switches. A reed switch is an electrical component that contains two ferromagnetic reeds that are hermetically sealed in a glass envelope. When a magnetic field is applied to the switch, the reeds move and make contact, completing the electrical circuit.

Ampere-turns (AT) is a measure of the magnetic field strength required to actuate the reed switch. It is determined by multiplying the number of turns in the coil by the current flowing through it. The higher the AT rating, the more sensitive the reed switch and the lower the magnetic field required to actuate it.

In general, a higher AT rating indicates a less sensitive reed switch that can be activated by larger magnets or with a stronger magnetic field. Therefore, it is important to choose a reed switch with an appropriate AT rating for the intended application to ensure reliable and efficient operation.

Reed Relays
Reed Relay

TOWARD RELAYS™ has been a leading manufacturer of Reed Relays for over 30 years, specializing in low-resistance, high-stability, high-voltage, and high-current relay solutions.

Reed SWITCHES
Reed Switches

Our reed switches are reliable, compact, and magnetically operated electrical switches. They consist of two flexible metal reeds housed in a sealed glass envelope.


Toward Technologies, Inc - A manufacturer of Solid State Relays, Reed Relays and MEMS Switches.

Located in Taiwan since 1988, Toward Technologies, Inc. is a relay supplier and manufacturer. Main products, including Opto-MOSFET Relays, Opto-SiC MOSFET Relays, Solid State Relays, Reed Relays, And RF MEMS Switches, etc.

Toward supplies relays to the world's semiconductor and automotive industries for over three decades and has long term long-term partnerships with OKITA Works based in Japan; Menlo Microsystems based in California; JEL Systems based in Japan and Teledyne Relays and Coax Switches based in California. Mainly serve the Semiconductor Testing, ATE, BMS (Battery Management Systems), industrial machinery and Electric Vehicle industries.

Toward has been offering customers high-quality Opto-MOSFET and Opto-SiC MOSFET relays since 1988, both with advanced technology and 37 years of experience, Toward ensures each customer's demands are met.