CNX48UW

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Optoisolators, sometimes also known as "optical couplers" or "optical isolators" are devices designed to increase electrical isolation between two electrical circuits or systems. The CNX48UW is a solid state optoisolator that uses a transistor and a photovoltaic output to create the required isolation.

The CNX48UW is a 4-pin device with a voltage range of 3V to 30V. The package is very compact and measures just 1.27 mm x 2.05 mm so it is suitable for use in tight spaces. It is designed for one-way signal transmission, meaning that it can be used to isolate two circuits and transfer signals in one direction only.

The first two pins of the CNX48UW are the input pins, which receive the electrical signal from the source. The signal is then converted from electrical to optical energy by the LED, which is activated by the driving current from the input pins. The optical energy is then transmitted through the isolation barrier to the output pins, where it is converted back to electrical form.

The isolation barrier is an important component of the CNX48UW, as it prevents any electrical current from passing between the two circuits. The isolation barrier is created by forming a barrier between the LED and the photodiode. The LED and the photodiode are the two main components of the optoisolator, and their arrangement ensures that there is no direct electrical connection between the two side components, creating the necessary electrical isolation.

The photodiode within the CNX48UW converts the optical energy from the LED into an electrical current. This current then passes through a transistor, which switches the output pin. When the input pin receives a positive voltage, the transistor is activated and the output pin is set to the required state.

The CNX48UW can be used in a wide variety of applications, such as switching loads, isolating signal lines, or preventing ground loops. It is suitable for use in industrial, commercial, and residential applications. It is also resistant to a wide range of environmental conditions, including vibration, dust, and temperature.

In conclusion, the CNX48UW is a solid state optoisolator that utilizes both a transistor and a photovoltaic output to create the required electrical isolation. It is ideal for use in applications that require one-way signal transmission, such as switching loads, signal isolation, or ground loops. The CNX48UW is also highly reliable and easy to install in tight spaces due to its compact design.

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