EL817(S)(D)(TD)

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 are a type of electrical component used to electrically isolate two or more circuits. This isolation is achieved by the use of a light-emitting diode (LED) and a phototransistor pair. The EL817(S)(D)(TD) is a type of optoisolator with a transistor, photovoltaic output. It provides electrical galvanic isolation between two circuits while still allowing them to communicate.

The EL817(S)(D)(TD) optoisolator consists of an LED, a phototransistor, and a Darlington or transistor output. The LED is powered by the input voltage and emits light when the input voltage is applied to its terminals. The phototransistor then detects this light and switches the Darlington or transistor output on or off accordingly.

These optoisolators find numerous applications in industrial and commercial settings. For example, they are used as power switches in security systems to isolate the main control circuit from potentially hazardous areas. They are also used as contact-less switches or proximity sensors, in which the LED and phototransistor are used to detect the presence of a metallic object or other material. This kind of application is often referred to as a photointerrupter.

The EL817(S)(D)(TD) optoisolator can also be used as a signal conditioning component to isolate noisy signals from an input circuit or device. In this approach, the LED is used to convert the input signal into an optical signal, which is then detected and converted back to an electrical signal by the phototransistor. The output is then isolated from the input by the optoisolator’s isolation barrier.

These optoisolators have a number of advantages compared to other types of isolators, such as magnetic and transformer-based isolators. First, they offer high isolation voltages that enable them to be used in high-voltage applications. In addition, their fast switching speeds and low power consumption make them ideal for use in power-sensitive applications. Finally, their small size and low cost make them a cost-effective solution for many applications.

In conclusion, the EL817(S)(D)(TD) optoisolator provides electrical isolation between two circuits while still allowing them to communicate. It is a versatile component that finds application in a variety of industries and applications including switch power supplies, security systems, and signal conditioning. In addition, its small size, low power consumption, and fast switching speeds make it a cost-effective solution. These optoisolators provide a number of advantages over other types of isolators for applications that require high isolation voltages and fast switching speeds.

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