FOD420

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

Optoisolators - Triac, SCR Output

FOD420 is an opto-isolator that enables the control of mid-range 110-240V AC power with a 5-12V DC logic signal. It utilizes a bidirectional Triac as the output with an SCR attached to the back. It is designed primarily for use in applications which require the isolation of a control signal and the simultaneous breaking of an AC power line.

The FOD420 Circuit is comprised of a high-voltage optocoupler, a low-side Triac, and a backside SCR. These components are interconnected in a way that the optocoupler drives the gate of the triac, and the BC or collector of the optocoupler drives the gate of the SCR. The opto-isolator provides a maximum isolation voltage of 5,500Vrms.

The FOD420 has a couple advantages when compared to other opto-isolators. For one, it allows for bidirectional control – meaning it can work for both positive and negative DC logic with a simple modifications. Another advantage is that it is able to switch high voltages with minimal current consumption of only 4mA. It also has a wide operating temperature range of -40 to + 90C, making it suitable for use in a wide variety of applications.

When it comes to the FOD420’s working principle, it is fairly simple. The circuit works by sending a DC signal between the logic side and the AC side of the opto-isolator. Upon receiving the signal, the opto-isolator works by isolating the two circuits and providing a high-voltage electrical field between the Triac gate and the SCR base. This high-voltage field causes the Triac to turn on and off, thus allowing for control of the AC line.

The FOD420 is an opto-isolator that is widely used in the fields of motor control, industrial automation, lighting control, and alternative energy. It allows for the control of mid-range AC power with a DC logic signal, whilst also providing up to 5,500V of isolation. It is ideal for applications which require bidirectional control and the breaking of AC power lines.

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