PC81712NSZ

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Optoisolators are electronic components that enable optical isolation of two circuits, which prevents the transmission of interference between them. The PC81712NSZ is a type of optoisolator from Sharp Corporation that uses transistor, photovoltaic output, ideal for on/off, analogue and pulse signal transfer. It allows designers to solve difficult problems by providing effective isolation between two circuits without the need for isolation transformers. This article will outline the application field of the PC81712NSZ and discuss its working principle.

The PC81712NSZ is ideal for controlling various types of devices, such as fans, relays, lights, motors, and pumps. It is suitable for industrial control, instrumentation and medical applications where noise isolation is required. The component also offers noise isolation between two circuits that the user cannot even access directly, such as between a computer system and control unit.

The PC81712NSZ optoisolator operates using a photovoltaic output transistor device. The component consists of an LED, phototransistor and other components on a single chip. The LED is connected to the input circuit, which drives the LED with a current applied to it. The LED emits light which is modulated by the changes in the current. The phototransistor converts this light into an electric signal, and this output signal is fed to the output circuit.

The main advantage of the PC81712NSZ optoisolator is that it provides complete electrical isolation between the input and output circuit, thus preventing electrical noise interference between the two. This is achieved by using an LED and a phototransistor in the same component, which allows the two circuits to be electronically isolated. It also has high isolation voltage (VISO) up to 7500 Vrms (5mA), which is much higher than conventional optoisolators. Furthermore, it has a wide input voltage range from 4.5V to 24V, which makes it suitable for a wide range of applications. The component also has low power consumption and high speed switching of up to 50kHz.

The PC81712NSZ optoisolator is designed to be compact, lightweight and highly reliable. The component is manufactured with a hermetic seal structure to ensure high reliability and superior performance. The optoisolator also features robust construction, enabling it to withstand high voltage and high current. It is available in a variety of forms, including surface mount and through-hole versions.

In conclusion, the PC81712NSZ optoisolator is an ideal solution for noise isolation between two circuits. It has a wide input voltage range and high isolation voltage, making it suitable for a wide range of applications. It also offers high speed switching and low power consumption. The component is robust and lightweight, and is available in both surface mount and through-hole versions.

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