4N35-X007

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Optoisolators are used in various applications to maintain the electrical isolation of one circuit from another while still allowing electrical signals to pass between them. The 4N35-X007 is an example of an optoisolator, specifically classified as a Transistor, Photovoltaic Output type. In this article, the field of application and working principle of the 4N35-X007 will be discussed.

The 4N35-X007 is a popular optoisolator which has a phototransistor output. Being a 4N35 model, it has a GaAIAs infrared emitting diode as the light source. The LED is contained in a 6-pin dual in-line package, enabling easy and secure mounting. It’s wide operating temperature range of -55°C to +100°C makes it suitable for many applications, while its high isolation voltage of up to 3750Vrms is suitable for a variety of higher voltage systems.

The 4N35-X007 is primarily used when the electrical isolation between two circuits, one of which may be a high voltage circuit, is necessary. It can provide consistent signal transfer between the two circuits without allowing a large current flow between them. It is often used in industrial control circuits, as well as in the automotive industry and telecommunications. Its low saturation voltage makes it suitable for low power systems, such as those using 3V or 5V supplies.

The 4N35-X007 build upon the design of the standard 4N35, by adding an extra lead containing a photo-diodes between the LED and the phototransistor. When the LED is energized, the photo-diode charges up a capacitor to provide a base voltage for the phototransistor. This voltage turn-on the phototransistor, allowing current to flow, which can be used as a control signal.

The 4N35-X007 is designed to have low input capacitance and high speed response. These features are supported by the separate controls paths for the LED and the phototransistor. The LED path is independent and the control signal does not interfere with the phototransistor, which allows it to turn on faster. This also helps the 4N35-X007 to have a fast response time, so it can process signals quicker than other similar optoisolators.

The 4N35-X007 is a popular optoisolator which is used for providing electrical isolation between two circuits, while allowing signal transfer between them. It features a wide operating temperature range and high isolation voltage, as well as low saturation voltage. Its addition of an extra lead containing a photo-diode allows it to have low input capacitance and high speed response, making it suitable for a variety of applications. The 4N35-X007 can be used in industrial control circuits, as well as in the automotive industry and telecommunications.

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