SAR424SU

Reed relays are electromechanical components that use an electromagnetic coil to open and close contacts. SAR424SU is a type of reed relay that is commonly used in circuit switching and automation applications. This relay is characterized by its simplicity, high switching performance, and reliability. In this article, we will explore the application field and working principles of the SAR424SU reed relay.

Application Field

The SAR424SU reed relay are widely used in a variety of automation applications, including industrial process control, automotive, consumer electronics, and medical devices. It is suitable for both low-voltage and high-voltage DC switching, as well as for AC mains switching.

In industrial applications, these relays are used in the control of actuators, such as valves or motors, and can also be used to switch electrical loads such as solenoids or motors. It is also used in telecom systems, for switching circuits between sending and receiving devices, and in automated test equipment.

The SAR424SU can also be used in telemetry applications, such as remote sensing, remote control, and radio-controlled missiles. Other applications include switching small loads in consumer products, such as cell phones, where the relay is used to switch an audio signal on and off when desired.

The SAR424SU is also used in medical equipment such as ventilators, patient monitoring systems, and drug delivery systems. It can be used to switch between different circuits and sensors, allowing for accurate monitoring and control.

Working Principle

The SAR424SU reed relay is a magnetic-latching relay, which means it uses a magnetically-held contact to keep the switch in the open or closed position. The relay is triggered by an electromagnetic coil, which creates a transient magnetic field when it is supplied with current.

The transient magnetic field created by the current in the coil interacts with a permanent magnetic field inside the relay, which causes the contacts to open or close. The relay is held in the open or closed position until another current is applied to the coil, which overrides the magnetic field and causes the contacts to switch back.

The SAR424SU can handle a wide range of current and voltage levels, from 1A to 5A, and from 1V to 600V. The switching time is fast, with an on/off time of 20ms max. The contact resistance is also low, typically less than 10 mΩ.

The SAR424SU is typically used in conjunction with other components, such as logic gates or transistors, to form a complete circuit and control system. It is also used in conjunction with sensing and control systems to provide real-time feedback and control of the switching process.

In summary, the SAR424SU is a reliable and efficient reed relay used for switching in a variety of applications. It is simple to operate and provides fast switching time, low contact resistance, and safe insulation in circuits. The versatility of the SAR424SU makes it a popular choice for both industrial and consumer product applications.