VOM618A-8T

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Optoisolators are electronic devices designed to provide electrical isolation between two circuits. They use a light emitting diode (LED) and a photodiode to provide an optical barrier between two circuits. The VOM618A-8T is an optoisolator with a transistor output and photovoltaic drive. It is designed to provide galvanic isolation that can be used for protection against voltage transients, high voltage voltage surges, electromagnetic interference (EMI) and radio frequency interference (RFI).

The VOM618A-8T consists of an integrated photocoupler containing an infrared emitting LED and a photodiode. The LED emits light when the input voltage is greater than the minimum threshold voltage. The light is then directed through an optical filter and is detected by the photodiode. When the photodiode detects the light, it turns on the output transistor, enabling the output voltage of the optoisolator. The output transistor will remain on until the input voltage drops below its low threshold.

The VOM618A-8T also has built-in protection features designed to protect the device from over-voltage conditions. It incorporates an avalanche breakdown diode that is designed to clamp the output voltage when it exceeds the breakdown voltage threshold. This protects the output transistor from damage due to over-voltage conditions. The device also has a reverse breakdown voltage that prevents it from conducting when the input voltage is reversed.

In addition to providing electrical isolation, the VOM618A-8T can also be used to protect the input and output circuits from damage due to over-current and over-temperature conditions. It incorporates current limiting and thermal protection features that prevent damage to the circuitry in case of over-current and over-temperature conditions. It also has a short-circuit protection feature that shuts down the output of the optoisolator in case of a short circuit between the input and output circuits.

The VOM618A-8T is also designed to be EMC compliant, meaning it meets the requirements of international emission standards. It also has an integrated EMI filter that helps attenuate unwanted interference from external sources. This helps protect the circuitry from damage caused by EMI and RFI.

The VOM618A-8T is an ideal solution for applications that require electrical isolation and protection from voltage transients, high voltage surges, EMI and RFI. It is a highly reliable device with excellent performance and a long service life. It can be used in a variety of applications including industrial, medical, automotive and consumer electronics.

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