4N35-X017

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Optoisolators are a type of electrical isolation components that contain a source of light and a light-detecting device. These components are used to safeguard against the potential problems associated with isolating electrical signals or circuits, such as ground potential differences, inductive transient voltages, capacitive coupling, etc. The 4N35-X017 is an optoisolator that uses a transistor with photovoltaic output to achieve isolation between the input and output signals.

The 4N35-X017 consists of an infrared emitting diode (IRED) and an NPN phototransistor, coupled together in a single package. The IRED emits infrared radiation of a particular wavelength when a current passes through it, and this radiation is then detected by the phototransistor, which in turn triggers a voltage output. This voltage output is then used to control the output device, such as a relay or a switch, or to turn on other optoisolators. The use of the optoisolator eliminates the need for direct contact between the input circuit and the output device.

The 4N35-X017 optoisolator has a number of applications. It is used in conjunction with an array of different electronics, such as DC motors, resistive loads, logic gates, SCR converters, and other related applications. It can also be used to protect delicate electronic components against damage due to voltage spikes or electromagnetic interference. Furthermore, it can be used to control the switching of power FETs in motor control applications.

The working principle of the 4N35-X017 is fairly simple. When a current is applied to the IRED, a small amount of infrared radiation of a specific wavelength is emitted. This radiation is detected by the phototransistor, which in turn triggers the output. The output can either be a voltage or a current, depending on the application. This output is then used to control the output device, such as a relay or a switch.

In summary, the 4N35-X017 optoisolator is a type of electrical isolation component that uses a photovoltaic output to achieve electrical isolation between the input and output signals. It has a number of applications, including DC motors, resistive loads, logic gates, SCR converters, and other related applications. It is used to protect delicate electronic components against damage due to voltage spikes or electromagnetic interference and to control the switching of power FETs in motor control applications. The working principle is to emit a beam of infrared radiation, which is detected by a phototransistor, triggering its output.

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