CNX48U3S

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Optoisolators, or optical isolators, were first developed in the 1960’s to provide an electrical and optical insulation between two circuits. They typically consist of a light-emitting diode (LED), an optical filter, a photodiode and a transistor. Transistor photovoltaic output optoisolators, such as the CNX48U3S, are a typical example of these devices. They provide electrical isolation of up to 5000 Volts and, due to their simple construction, tend to be extremely reliable.

The CNX48U3S consists of a LED and a photodiode connected via an optically transparent window in an integrated package. The LED is used to drive the photodiode, which in turn is used to drive an integrated NPN transistor. The output of the optoisolator is a signal, which is isolated from the LED inputs and changes in response to the intensity of the light it is receiving.

The CNX48U3S is typically used in industrial or commercial applications, such as medical equipment, preciseness instrumentation, automotive systems and power supplies, where electrical isolation is required. The optoisolator provides an effective isolation barrier between the primary power supply and the circuit being monitored or controlled - preventing any electric shock dangers or spikes in the electrical supply.

The working principle of the CNX48U3S is simple. As the LED is activated, it emits light which is then received by the photodiode. The photodiode converts this light into electrical current, which is used to activate an NPN transistor. The transistor, as a result, will open or close depending on the state of the LED. The output of the optoisolator is then isolated from the LED input.

This simple principle is extremely effective and reliable, making optoisolators such as the CNX48U3S excellent choices for applications requiring electrical isolation. The CNX48U3S optoisolator is capable of providing isolation up to 5000 Volts, making it suitable for most industrial and commercial applications. Additionally, its simple construction makes it more resistant to failure and reduces the risk of electrical shocks or spikes in the electrical supply.

In conclusion, the CNX48U3S is a commonly used transistor photovoltaic output optoisolator, due to its simplicity and reliability in providing electrical isolation for various applications. It is typically used in medical equipment, precision instrumentation, automotive systems and power supplies, where isolation of up to 5000 Volts is required. The working principle of the CNX48U3S is simple - the LED emits light which is received by the photodiode, which in turn activates an NPN transistor. The output of the optoisolator is then isolated from the LED input.

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