PC851X

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Optoisolators are electronic components designed to provide electrical isolation between two parts of a circuit. The name comes from "optical isolation," which means that the two circuits are isolated from one another. One type of optoisolator, the transistor photovoltaic output (PC851X), offers an effective and reliable way to protect sensitive components from high voltages. In this article, we will discuss the application field and working principle of PC851X optoisolators.

PC851X Features and Overview

PC851X optoisolators are specialized components designed to provide electrical isolation between two parts of a circuit. They are based on a stable, low power consumption photocoupler, and are composed of a light-sensitive semiconductor and a phototransistor. Unlike other types of optoisolator, the PC851X does not require an external power source to operate, making it ideal for low-voltage applications. The PC851X also features a high gain-bandwidth product, which improves responsiveness to input signals.

The PC851X has a number of specialized features which make it suitable for a range of applications. It has a low saturation voltage and a wide range of operating temperatures. Furthermore, the PC851X can withstand high voltages up to 300 volts, making it ideal for use in high-voltage applications. Additionally, it provides an isolation voltage of up to 3750 volts, allowing it to protect sensitive components from unwanted electrical spikes.

Applications of the PC851X

PC851X optoisolators are ideal for a range of applications, most notably high-voltage protection. They are commonly used in automotive, medical, industrial, and consumer electronics applications, where they provide isolation and protection from high voltages. They are also used to protect delicate components from overvoltage and overcurrent conditions in power supply and motor control circuits.

PC851X optoisolators are also used in a variety of communication systems, where they protect sensitive components from interference and electrical noise. They are also used to improve signal performance in high frequency applications, such as Ethernet, USB, and fiber optic communication systems. In addition, they are used in automotive audio applications to protect speakers from electrical interferences.

Working Principle of the PC851X

The PC851X optoisolator works by using a light-induced, photocurrent to switch transistors on and off. The light-sensitive part of the optoisolator is a semiconductor, which requires low levels of power from an external power source. When an electrical signal passes through the circuit, a light-induced current is generated in the semiconductor. This current is sent to a phototransistor, which in turn switches on and off to provide complete electrical isolation between the input and output circuits.

The main advantage of the PC851X is that it has low power consumption and a wide range of operating temperatures. Furthermore, it is capable of withstanding high voltages up to 300 volts, making it ideal for high-voltage applications. It also provides an isolation voltage of up to 3750 volts, which helps to protect sensitive components from overvoltage and overcurrent conditions.

Conclusion

PC851X optoisolators are ideal for a range of high voltage and communication applications, as they provide electrical isolation between two parts of a circuit. They are based on a stable, low power consumption photocoupler, and have a wide range of operating temperatures and high voltage withstand capabilities. They also provide excellent protection from overvoltage and overcurrent conditions. As such, they are an effective and reliable way to protect sensitive components from high voltages.

The specific data is subject to PDF, and the above content is for reference