EL212-V

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Optoisolators are devices that use light to isolate electrical signals between two different circuits. The Vishay Semiconductor EL212-V is an example of such a device and is part of the company\'s optocoupler family. It is a single channel, phototransistor output optocoupler. This particular device has many applications, including being used to provide electrical isolation by blocking transients and electro-magnetic interference (EMI). The EL212-V can also help protect expensive circuit components from electrical damage.

The EL212-V optoisolator utilizes a 6-pin dual-in-line (DIL) package for assembly. It has two primary components in it, a photodiode and a phototransistor. The photodiode is formed when a gallium-arsenide (GaAs) infrared emitting diode is coupled to an optically transparent package of the same name. This package then allows the infrared (IR) light to pass through from the emitter diode to the phototransistor. The output of the phototransistor is activated when it receives the signal from the emitting diode.

The operation of the EL212-V optoisolator is based on the working principle of photovoltaic output. When light from an external source is directed onto the phototransistor, it creates a tiny fraction of electrical current. This electrical current is then passed through the base of the phototransistor. As the electric current passes through the base, it then causes the transistor to switch on and the logic control signal is passed to the second circuit, thus providing the isolation between the two systems.

The EL212-V is a reliable device that is capable of providing both input and output electrical isolation. It has a minimum isolation voltage up to 5000Vrms at a minimum isolation resistance of 10^14. This is very reliable for the protection of sensitive electronic circuits, as it can provide a high degree of electrical isolation between the two cable systems.

The EL212-V is also complimented by other devices, such as common-mode chokes and snubber networks, to provide transient suppression and electro-magnetic interference (EMI) filtering. The integrated diode bridge network provides a cost-effective solution for the protection of sensitive electronic components from voltage transients. The constructed snubber networks are also great for providing noise filtering, EMC compliance, and anti-surge performance.

The EL212-V optoisolator is a device used to provide electrical isolation between two different circuits. It utilizes the working principle of photovoltaic output, which works by converting light from the diode into electrical current. This current is then passed through the base of the phototransistor and causes the transistor to switch on. It is complimented by common-mode chokes and snubber networks, which help provide transient suppression and EMI filtering. The EL212-V has many applications, including input and output electrical isolation, EMC compliance, and protection of expensive circuit components.

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