4N35-X009

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Optoisolators are semiconductor devices that utilize electric and optical signals to provide isolation in electrical systems. This type of isolation ensures that voltage and current remain separated between two circuits, protecting one circuit from another circuit’s influence. This separation is especially important in applications involving hazardous electrical environments. The 4N35-X009 optoisolator is a transistor, photovoltaic output type device that offers guaranteed minimum 3000 Vrms of input-to-output isolation.

The 4N35-X009 optoisolator consists of a gallium arsenide infrared LED used to generate optical energy when an electric current passes through it and a silicon NPN phototransistor to receive and convert the incoming optical energy into an electric current. As illustrated in Figure 1, the LED, also referred to as an input, is situated in a housing with two leads. The phototransistor, also referred to as the output, includes three leads where the base, emitter and collector are all separate. There is also a fourth lead, specifically for shields. The two components of this module, the LED and the phototransistor, are housed in a single package and are optically coupled to one another to ensure the isolation.

The operation of the 4N35-X009 optoisolator is relatively simple. First, an electric current passes through the input component, the LED. This causes the LED to produce a light signal which is transmitted to the output component, the phototransistor. The phototransistor then converts the optical signal to an electric current. This current is then directed to the output, resulting in the output of a desired response. As a result, the two circuits are electrically isolated, ensuring that no unwanted current or voltage flows between the two circuits.

The 4N35-X009 optoisolator is commonly used in a range of applications, including industrial control systems, computers, AC/DC power supplies and process control systems. This type of isolator is capable of handling a wide range of temperatures, from -55°C to +105°C, and is highly resistant to both extreme temperatures and vibration. It is also designed to provide 1000mA of current and 1W of power between input and output in order to ensure reliable performance over long periods of time.

The 4N35-X009 optoisolator is a transistor, photovoltaic output type device that provides reliable electrical isolation between circuits. This device utilizes an infrared LED for producing an optical signal and a phototransistor for receiving the optical signal and converting it into electric current. It offers guaranteed minimum 3000 Vrms of input-to-output isolation, and is suitable for a wide range of applications, including industrial control systems, computers, AC/DC power supplies and process control systems. It is designed to provide 1000mA of current and 1W of power, and is highly resistant to both temperature and vibration.

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