PS2801C-1-L-A

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The PS2801C-1-L-A is a type of optoisolator that utilizes a transistor, photovoltaic output to provide isolation between circuits. This type of optoisolator is ideal for applications requiring a switching function but a physical link of circuits is not feasible due to noise. This article will explain the characteristics of the PS2801C-1-L-A, its applications and its working principle.

The PS2801C-1-L-A optoisolator produced by Sharp is an interface device with a phototransistor as the input and an optical emitter as the output. It consists of a sealed package allowing an integrated LED emitter and a silicon NPN phototransistor in the same housing. It has ratings of <20 mA, 30V, and 0.35W for its collector current, voltage, and power respectively. The optoisolator additionally features a collector-emitter breakdown voltage of 30V (min) and a total isolation voltage of 500Vrms for one minute.

The PS2801C-1-L-A optoisolator is used in a variety of applications that require electrical isolation such as industrial process controllers and automatic transfer switches. It is also is used in other automation equipment, communication circuits, and instrumentation. The optoisolator is suited for switching applications as well as pulse generation. When used in digital systems, the optoisolator provides a reliable way to isolate devices, allowing for low-level transmission with minimal interference.

The working principle of a PS2801C-1-L-A optoisolator is based on the use of an LED and a phototransistor. The LED is operated in place of a primary coil in a circuit and the phototransistor operates as a secondary coil in the same circuit. The LED emits visible or infrared light when a current flows through it and the phototransistor, which is connected to the LED across an insulating barrier, detects the emitted light and generates a current. This current is used in a circuit as a control signal that can be used to switch elements or create a pulse.

In conclusion, the PS2801C-1-L-A optoisolator is a reliable and efficient transistor, photovoltaic output style optoisolator, which is used in a variety of electronic applications. Its design combines an LED and a phototransistor which allows for low-level transmission with minimal interference. Moreover, it features ratings of <20mA, 30V, and 0.35W for its collector current, voltage, and power respectively. The PS2801C-1-L-A optoisolator is used in industrial process controllers, automatic transfer switches, communication circuits, and instrumentation, proving its versatility and efficiency.

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