PC354N

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Optoisolators, also known as optocouplers, are electrical devices that are used to transfer electrical signals between two isolated circuit sections across a gap in the electrical field and without any direct electrical contact. The PC354N is a kind of optoisolator that comes with a transistor photovoltaic output with a 4-pin Dual-In-Line (DIL) Package format.

Optoisolators are generally used in applications which require optoelectronic isolation between two circuits, such as in industrial applications, medical equipment, audiovisual systems, automotive consoles and other automated aspects that are dependent on complex circuitry. By virtue of their large voltage isolation range, these devices have become prime choices in applications involving communication, switching and sensing circuits, as they are also used for data and signal protection.

The PC354N optoisolator comes with an internal isolator section featuring a built-in LED on one side and a photodetector such as a photodiode, phototransistor, or a photoresistor on the other side. The LED transmits a light signal produced with electrical voltage that is inverted by the photodetector, thus proving power for controlling the output transistor. The PC354N optoisolator offers a maximum contiuous current of 100mA at a maximum forward voltage of 1.6V. It also has a maximum trigger current of 50mA and has a Vce rating of 40V. The operating temperature ranges from -40 to 85 degree celsius, and the isolator has a 3000V isolation voltage rating.

The internal photodetector of the PC354N optoisolator features a reverse voltage protection of diode at 50V with a forward voltage of less than 0.7V. It also features an output transistor with a low saturation voltage and a current gain of 50 to 160. The PC354N also comes with a power dissipation rating of 400mW and a storage temperature ranging from -40 to 105 degree celsius. The optoisolator is also characterized by a very low leakage current, of less than 1mA with an isolation impedence of more than 10GΩ at 500V.

The PC354N optoisolator provides a tremendous level of electrical isolation between two circuits, which increases the circuit reliability and reduces the chances of electric shocks or intermittent errors. It is also ideal for applications that require a fast response, as the signal transmission speed of the device is about one microsecond. Additionally, optical isolation provides immunity from transients, electrical noise, electro-magnetic interference and switch contact bounce which can cause erroneous signal transmission and affect the circuit performance adversely.

The PC354N optoisolator is an ideal choice in applications that require a high degree of electrical isolation, as well as fast data transmission rate. It is suitable for industrial processes, medical equipment, automation systems and related applications that require the coupling of two circuitry with the application of signals, power or data.

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