4N28-V

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Optoisolators are electronic components that facilitate the transfer of high-voltage or high-power signals while isolating two circuits electrically from one another. The 4N28-V is an optoisolator manufactured by Fairchild Semiconductor designed for use in medium-power and medium-level applications. This component is a transistor photovoltaic output module that utilizes a 6-pin dual in-line package (DIP). It consists of an infrared light-emitting diode (LED) optically coupled to a silicon phototransistor, and can be used as switches, amplifiers, or digital-to-analog devices.

The 4N28-V an be used to isolate two circuits from one another while allowing communication between them. As the name implies, it does this by using an optical mechanism that prevents the flow of electricity between the two circuits, according to Ohm’s law. An LED on one side of the device emits light, which is received by a photodiode or phototransistor on the opposite side, which then generates a current. This current is passed to a transistor or other output device, triggering the desired action to occur in the application.

The 4N28-V’s optocoupling feature ensures that the signal is cleanly and reliably transmitted between the two circuits. This is beneficial for applications requiring ultra-low power consumption, as the device draws minimal current from the power supply. It also helps to protect circuits from electromagnetic interference (EMI) and transient voltages.

Another key feature of the 4N28-V device is its fast switching speed. This allows the device to react quickly to changes in the input signal, enabling faster response times and improved performance. Additionally, the device’s long-term reliability is enhanced by its wide operating temperature range (-55°C to +100°C) and its long lifetime of 100,000 hours.

The 4N28-V is well suited for a variety of medium-power and medium-level applications. It can be used as an amplifier, switch, signal conditioner, or in proximity sensing. Furthermore, it contains an internal protection diode which allows it to provide protection, in case of an unexpected increase in the maximum collector current.

In summary, the 4N28-V optoisolator from Fairchild Semiconductor is an excellent choice for medium-power and medium-level applications requiring a reliable means of signal transfer, low power consumption, and fast switching speed. With its wide temperature and long life, it is a durable and reliable solution that will provide years of reliable service.

The specific data is subject to PDF, and the above content is for reference