FOD2712R2

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Optoisolators, also known as optical isolators, photo-couplers, opto-couplers, and optically coupled isolators, are designed to electrically isolate two circuits. TheFOD2712R2 is a isolator part of the FOD2mm package size family with transistor, photovoltaic output. It offers 4 kV optical isolation, low power consumption, and high Common Mode Rejection Ratio (CMRR).

Applications and Uses

The FOD2712R2 is used in a range of applications, including:

• Industrial control circuits: The FOD2712R2 is ideal for applications requiring motor speed control, current sensing, and servo control.
• Medical device control: Doctors and nurses rely on devices such as ventilators and patient monitors that use the FOD2712R2 for accurate measurement and monitoring.
• Computer peripheral interfaces: The FOD2712R2 provides consistent voltage isolation for computer peripherals such as scanners, printers, and keyboards.
• Power conversion and control: The FOD2712R2 isolates power signals, allowing power converters and controllers to provide flawless power delivery.
• Safety circuits: The FOD2712R2 protects against equipment malfunction and dangerous electrical conditions by providing automatic isolation of the power line.

Working Principle

The FOD2712R2 is an optoisolator consisting of a phototransistor and a LED. It works by using the LED to optically couple the input and output circuits. When the LED is activated, it emits light, which is used to trigger the phototransistor in the output circuit. This isolates the two circuits, preventing damage or interference from a direct electrical connection.

As light is used as the coupling medium instead of electricity, the input and output circuits are completely isolated, allowing only the selected AC or DC signal to pass. It also provides 4 kV electrical isolation, minimizing damage or interference caused by electrical surges. The FOD2712R2 also offers low power consumption and high common mode rejection （CMRR） ratio.

Conclusion

The FOD2712R2 is a reliable optoisolator that is perfect for a range of applications from industrial control to medical device control. Its 4kV isolation and low power consumption make it an ideal solution for applications that require reliable electrical isolation. Its high common mode rejection ratio also ensures minimal interference. All of these factors make it an ideal component to use in any application requiring electrical isolation.

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