ILD66-1

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Optoisolators are electronic components used to provide electrical isolation between two circuits. One type of optoisolator, the ILD66-1, uses a transistor and photovoltaic output to provide electrical isolation and is suitable for a wide variety of applications. This article will discuss the application field and working principle of the ILD66-1.

Application Field

The ILD66-1 optoisolator can be used in a variety of applications, such as providing electrical isolation between the control and the load circuit, providing electrical isolation between the low-voltage section and the high-voltage section, providing electrical isolation between the input and output circuit of the processor, providing electrical isolation between the industrial automation system and control element, and providing protection from electrostatic discharge. It can also be used for low-power data transmission, or for signal control, and it has a wide range of operating temperature.

Working Principle

The ILD66-1 optoisolator operates on the principle of a phototransistor. When light from the light-emitting diode (LED) in the optoisolator reaches the base of the transistor, a current is induced in the transistor, and a voltage is then generated at the collector of the transistor. This voltage is then connected to the load. The isolation between the two circuits is accomplished by the physical separation of the LED and the phototransistor by a clear plastic case which prevents the light from the LED from reaching the base of the phototransistor.

The ILD66-1 has a maximum current rating of 40mA, and an isolation voltage of up to 5kV DC. Its operating temperature range is -55˚C to +125˚C, and it has a safety storage temperature range of -55˚C to +125˚C. It has a CTR index between 40-400%, and a response time of 1.5microseconds.

Conclusion

The ILD66-1 optoisolator is a transistor-photovoltaic output optoisolator that is suitable for a wide variety of applications, such as providing electrical isolation between two circuits, low-power data transmission, and signal control. The device operates on the principle of a phototransistor, and it has a maximum current rating of 40mA, an isolation voltage of up to 5kV DC, and an operating temperature range of -55˚C to +125˚C. It also has a safety storage temperature range of -55˚C to +125˚C, a CTR index between 40-400%, and a response time of 1.5microseconds.

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