4N55#100

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Optoisolators, also known as opto-couplers, are electrical devices often used to transfer electrical signals between circuits or subsystems while at the same time completely isolating the two circuits from one another. Optoisolators come in various types and configurations, including transistor, photovoltaic output, and many more. The 4N55#100 is an optoisolator featuring a transistor and photovoltaic output.

The 4N55#100 optoisolator is used in applications where the electrical isolation of two different circuits needs to be maintained. This is often done to protect one circuit from overloads and damage that could be caused by high voltages in another circuit, or to perform AC signal measurements. Isolation of the circuits is achieved by the use of an LED light source, which is used to activate a phototransistor in the circuit, thereby creating an electrical barrier between the two circuits. This allows one circuit to communicate with the other without the risk of damage due to electrical shock or malfunction.

The 4N55#100 optoisolator has a range of operating voltages as low as 10V. It is a high-speed optoisolator and is capable of switching 20V at frequencies of up to 50kHz. The current range of the LED light source is 1.6 to 7.6mA, with a forward voltage of 1.2V. The forward voltage drop of the phototransistor is relatively low, at roughly 0.25V. This allows the 4N55#100 to be used in applications requiring fast switching signal transmission without introducing distortion.

The 4N55#100 optoisolator has several very useful features for a variety of applications. For instance, it has a wide operating frequency range, which allows it to be used in systems that need both high and low frequencies. Additionally, its low voltage drop ensures that it produces accurate signals, making it suitable for AC signal measurements. With its fast switching speed, the 4N55#100 optoisolator is ideal for applications which require rapid signal transmission between two circuits.

In conclusion, the 4N55#100 optoisolator is an ideal choice for applications where electrical isolation between two circuits is required. It has a range of features which make it suitable for a variety of applications, such as signal transmission and AC signal measurements. Its high-speed switching capabilities also make it ideal for fast signal switching between circuits. All in all, the 4N55#100 optoisolator is an excellent device which can be used in a wide range of applications.

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