A4890

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

A4890 solid state relays (SSRs) are composed of a sensing element and an output semiconductor switch, and are used to control electrical circuits with a low current control signal. The A4890 is an optically coupled, zero-crossing controlled, bidirectional solid state device. This device offers superior isolation between the input and the output and extremely low input specifications, making it ideal for circuits with high levels of noise.

A4890 SSRs provide dynamic control of switching for both AC and DC load applications. They have a low operating voltage requirement of just 3 volts, making them suitable for power-sensitive applications. In addition, they have low power consumption, making them suitable for applications where power draw must be kept low. The A4890 is also lightweight and compact, making it well-suited for portable and/or mobile applications.

As the name implies, the A4890 is an optically coupled device. This means it uses an optical emitter, such as an LED, to drive a light-dependent electrical circuit. When current is applied to the LED, it emits light, which in turn drives the switching circuit. The A4890’s switch is self-latching, and therefore no external power is necessary. This makes the A4890 a reliable switch, since it does not rely on any external power source.

The A4890’s zero-crossing control feature ensures that the switch’s output is perfectly synchronized with the AC input signal. The device’s bidirectional feature allows it to switch between two different voltage states, either AC on or AC off. This feature makes the A4890 ideal for controlling and switching on load circuits with both AC and DC current.

The A4890 has two primary application fields: home and industrial automation systems. For home automation systems, the A4890 can be used to control lighting, appliances, fans, and other electrical components. In industrial settings, the A4890 can be used to control pumps, compressors, motors, and other industrial machinery.

In addition to controlling AC and DC circuits, the A4890 SSRs have a wide range of other applications. The wide input range makes them suitable for controlling a variety of devices with different input requirements. The device’s self-latching feature also makes it useful in applications where an external power source is not present. The device’s stability and high level of isolation make it suitable for use in medical, military, and aerospace applications.

Overall, the A4890 solid state relays are a versatile and reliable solution for a wide range of applications. Their wide input range, low power consumption, and self-latching feature make them ideal for both home and industrial automation projects. The device’s bidirectional feature makes it suitable for applications with both AC and DC load circuits. Lastly, the A4890’s stability and high level of isolation make it a great choice for medical, military, and aerospace applications.

The specific data is subject to PDF, and the above content is for reference