EL814S(A)(TA)

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The EL814S(A)(TA) optoisolator is a transistor, photovoltaic output device used for blocking direct current (DC) paths between two electrical circuits while supplying electrical isolation between them. This device utilizes an LED (light-emitting diode) die that optically couples two transistors, one driven from the application circuit and one driving the application circuit. The EL814S(A)(TA) optoisolator is an effective and reliable solution for a variety of opto-isolation requirements in many applications.

Application Field

EL814S(A)(TA) optoisolators are used in a wide range of applications. For instance, these devices can be used for civil/industrial control, industrial machine control, medical equipment, home appliances, instrumentation, computing equipment, consumer electronics, automotive accessories, power supplies, and many more.

Working Principle

The EL814S(A)(TA) optoisolator consists of two different parts: the LED die and the transistor. The LED die, which is the emitting part of the optoisolator, consists of a transparent epoxy package with a two-terminal LED chip inside. The supplied voltage, when current flows through the LED, emits light which is directed through the transparent part of the epoxy package. The other part, the transistor, is where the output is located. The light generated by the LED die is directed to a sensitive photodiode on the side of the transistor package, which directs the current to the output. Thus, high voltage AC signals from the application circuit can be blocked from the output circuit since the output is only carrying low voltage DC signals.

The EL814S(A)(TA) optoisolator is an efficient and economical device for providing electrical isolation between two circuits. With its simple two-terminal LED chip construction, this device can be easily integrated into many applications. Furthermore, its high-speed switching capability makes it suitable for a variety of high-speed opto-isolation applications.

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