4N48UTX

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Optoisolators are devices used to provide electrical isolation between two connected circuits and are most commonly utilized in industrial applications where network and signal protection are essential. The 4N48UTX optoisolator belongs to the family of transistor-photovoltaic output optoisolators. This device provides up to 2500V of protection and operates with high frequency up to 30MHz. It offers many features from its hermetically sealed packages, wide range of creepage and clearance distances, and low input current.4N48UTX is commonly used in applications such as field telecommunication systems, motor drives, power supplies, solar and UPS systems, and instrumentation. Its main function is to protect instructions, sensitive data and signal connections in the industrial environment from hazardous transient voltages and other electrical disturbances such as electrostatic discharge. Results of this protection can include monitor and modem noise reduction, protection of low-level sensing techniques, and signal transmission interference.The fundamental working principle of the 4N48UTX optoisolator is based on an LED (Light Emitting Diode) and coupled with a sensing surface-mounted phototransistor. The LED emits light which is absorbed by the photo-transistor. When an electrical signal is applied to the LED, it will start to emit light and the intensity of the light will increase or decrease according to the intensity of the electrical signal. The light generated by the LED is absorbed by the phototransistor, whose output current will also be modulated by the amount of light received.The output of the device is the collector-emitter current and the voltage between the collector and the base. This output can be also used to switch on a relay or other external circuit. Another feature of the device is its low input current that is just enough to activate the LED and make it emit light. This feature combined with the wide range of creepage and clearance distances protect it from short circuits and high power surges that can damage the device. 4N48UTX optoisolator provides excellent signal transmission, noise reduction and higher levels of signal protection in diverse industrial applications. Its hermetically sealed packages not only guarantee a reliable operation in the most demanding environmental conditions, but they also help to minimize the size of the device and increase its portability. Additionally, its low input current and wide range of creepage and clearance distances help protect against short circuits and high power surges. Overall, the 4N48UTX optoisolator is a highly reliable and efficient device which provides excellent protection in industrial applications while maintaining a low profile and offering high levels of performance. Its features, coupled with its wide range of creepage and clearance distances, make it an ideal choice for protecting instructions, sensitive data and signal connections in demanding industrial environments.

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