EL817(B)-G

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Optoisolator technology provides an electrical insulation between two different systems typically at levels of 500 volts or higher. However, optoisolators can also provide isolation between a DC voltage (e.g. 0-5V) and an AC voltage (e.g. 110V or higher). Optoisolators come in many different types and configurations with one of the most common type being the transistor, photovoltaic output optoisolator or EL817(B)-G.

The EL817(B)-G optoisolator is a four-pin package available in a small outline package (SOP) that contains a photo-transistor optoisolator integrated circuit (IC). It is a standard optoisolator device and works by separating the input and output circuits. The input circuit contains an infrared LED that is connected to the input voltage. The LED emits an infrared light beam that is picked up by the phototransistor in the output circuit. When the LED is on, the phototransistor is activated and current begins to flow through the output circuit in the direction of the arrow printed on the optoisolator. When the LED is off, the phototransistor is deactivated and current stops flowing. This makes it possible to isolate the input from the output.

The EL817(B)-G optoisolator has a number of applications. In high voltage circuits, the EL817(B)-G can be used to provide electrical isolation between the input and output. This is useful in applications where exposure to high voltages can be hazardous such as medical devices. The optoisolator can also be used as a switch. By connecting a resistor between the output pin and ground it can be used to turn a transistor on and off. The optoisolator can also be used to control a relay or other actuator. Finally, the optoisolator can be used in circuits requiring low power consumption as the power consumption of the EL817(B)-G is very low.

The EL817(B)-G optoisolator is a versatile device that can be used in many different applications. It is a cost-effective solution for providing electrical isolation in high voltage circuits, as a switch, to control a relay or other actuator, and in low power applications. The EL817(B)-G\'s small size and low power consumption make it a great choice for applications where space is limited and power consumption is a concern.

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