AQW414EHAX Relays

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Solid State relays are intended as switching devices for switching on or off electrical circuits. One of the most common Solid State relay is the AQW414EHAX. It is an optically coupled, high breakdown voltage type, with Zener structure isolation. It is a surface mounted device (SMD) type of solid-state relay, and has a wide variety of applications in both industrial and commercial applications.

The AQW414EHAX is a 4-pin optically coupled relay with an optically isolated output. It is rated for up to 5A, 250VAC, and has a 0-20msec turn on and 0-35msec turn off time. It is a DC Input type, with 12V and 24V DC working voltages, and can be switched on with either a 4-pin DC connector (2-pin for GND and CTL) or an isolated DC input. It features a low power consumption and a wide operating temperature range of -20°C to +70°C, with a high MTTF (Mean Time To Failure) rating. It also has an LED indicator to signal when the relay is energized.

The AQW414EHAX has a wide variety of applications, including motor control, lighting & automation control, industrial process control, HVAC (Heating, Ventilation & Air Conditioning), alarm systems, and scientific instrumentation. Its rated value of 5A and 250VAC make it suitable for many applications where a high current switch is needed. It is also well-suited for use in applications where long life and high reliability are important.

Working principle of the AQW414EHAX is fairly simple. When the input voltage (Vin) is applied, it will turn on and energize the internal circuit, causing the output voltage (VO) to be switched on. As opposed to traditional relays, the AQW414EHAX does not require any physical contact for switching action. Instead, it relies on a solid state design with optoelectronic components to detect the input voltage and complete the switching action. The optocoupler, which is composed of an LED and a phototransistor, forms the main switching component of the relay. The light emitted by the LED changes the conductivity of the phototransistor, which in turn acts as a switch to control the current to the output terminal.

The AQW414EHAX is an economical, reliable, and efficient solid-state relay that can offer a wide range of switching and control options for both industrial and commercial applications. It is a cost-effective way to control electrical circuits efficiently and manage power consumption, while providing long life and dependable service. Additionally, the optically isolated output makes it suitable for use in applications requiring electrical isolation and noise reduction. The AQW414EHAX is an excellent choice for many switching and control applications, and can be regarded as one of the best values in Solid State relays.

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