18831

Series:	*
Part Status:	Active
Lead Free Status / RoHS Status:	--
Moisture Sensitivity Level (MSL):	--

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Relay Sockets

Relay sockets, also known as reed relay sockets, are a type of switching component widely used in an array of digital and electrical circuits. In a general context, relay sockets allow a low energy-level voltage or current to control a larger current or voltage. Their purpose is to remotely and electrically control a circuit switch without the need of local manual intervention. The term “sockets” is used to denote the fact that they employ standard electrical plug connection sockets rather than using solid or soldered electrical contacts.

Application Fields

Relay sockets are widely used in any area where an electrical switch needs to be automated. Some of the most common applications are in the automotive industry such as opening and closing of relay switches that control the headlights, the security system, etc. Another area of application is in home security systems. By connecting a relay socket to the electrical circuit of an alarm system, the current can be switched on and off remotely without the need of manual intervention. Other areas that use relay sockets include industrial automation, industrial control, and robotics, where relay sockets can be used to control the power supply to individual motors and actuators. Moreover, these sockets are often used in aviation, aerospace, and medical applications. They can be of great help in controlling airflow in aircraft and medical diagnostic equipment, operating machinery, and controlling lighting and other power-dependent systems.

Working Principles

Relay sockets function as electrical contact switches that work by transferring electrical current from one port to another. Just like a normal on-off switch, relay sockets have either a normally open (NO) or a normally closed (NC) connection.A relay socket’s working principle is based on electromagnetic attraction. A small electromagnetic coil is installed inside the socket which creates a magnetic field when energized. This field is capable of attracting a metallic or ferrite core, which in turn closes or opens a switch between the NO and NC terminals. This switch triggers a series of events in the connected electrical system. When the current is applied, the coil is energized and attracts the metal core, causing it to bridge a gap in the NC and NO paths. The switch is then moving towards the “ON” position which flips the circuit and creates a connection. When the current is removed, the metal core becomes unpaired and the switch is shifted to the “OFF” position.

Conclusion

Relay sockets are a type of electrical contact switch that are used to control current or voltage remotely. They can be used in a wide variety of applications including automotive, home security, industrial automation, aviation, and medical diagnostics. Their working principle is based on an internally installed electromagnetic coil which creates a magnetic field when energized, which can attract a metallic or ferrite core, which then closes or opens a switch between the NC and NO terminals.

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