MOC119

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Optoisolators are electrical devices used to protect electrical devices from strong electrical transients, while maintaining a reasonable level of electrical isolation. An optoisolator consists of a light-emitting diode (LED) and a photovoltaic cell that are electrically isolated from each other. When a voltage is applied to the LED, the current flowing through it causes the LED to emit light, which is then absorbed by the photovoltaic cell, generating an electrical current in it. The current generated in the photovoltaic cell is then used to energize a circuit in the optoisolator, such as a transistor or a relay.

The MOC119 optoisolator is an optoisolator with transistor, photovoltaic output. It is designed to provide electrical isolation between two circuits, while blocking strong electrical transients that could otherwise damage sensitive electronic components. It is commonly used to protect sensitive systems, such as data transmission and control systems, from damage due to electrical transients or surges.

The MOC119 optoisolator consists of a light emitting diode, a photovoltaic photocell, and an output transistor. The light emitting diode is a small chip enclosed in a plastic housing, which is mounted in the center of the optoisolator. When a voltage is applied to the light emitting diode, it emits light. This light is then absorbed by the photovoltaic photocell, which converts it into electrical current. This current is then used to energize the output transistor, which in turn energizes an external circuit.

The MOC119 optoisolator is designed to provide electrical isolation of up to 1500 volts peak-to-peak between its input and output circuits. It also has an isolation breakdown voltage of up to 400 volts. This ensures that any voltages applied to either the input or output circuits will not be able to pass through the optoisolator, protecting the connected electronic components.

The MOC119 optoisolator is particularly useful in systems where electronic devices need to be operated at high voltages, or where devices powered by different sources need to be linked together, such as in data transmission and control systems. The MOC119 optoisolator offers a high degree of electrical isolation, while still allowing signals to be passed between two circuits. Additionally, it provides a highly reliable way to protect sensitive electronic components in the event of an electrical transient or surge.

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