6N140A/883B#100

Optoisolators - Transistor, Photovoltaic Output

The 6N140A/883B#100 optoisolator is a device designed to provide electrical isolation through an optical signal. It is a two-piece assembly that consists of an LED (Light Emitting Diode) mounted on a PCB that is connected to the microcontroller or digital logic device. This LED then emits light through a lens which is then picked up by a phototransistor, contained in a separate assembly. The optoisolator then provides a circuit connection between the LED and the phototransistor, allowing a signal to be sent or received in isolation from the input and output devices.

Application fields

Optoisolators, such as the 6N140A/883B#100, are widely used in a variety of applications. One of the most common applications is as an input device for microcontrollers and digital logic devices. The device can be used in a variety of systems, such as 3D printers, A/V equipment, or medical equipment. In these applications, the optoisolator can provide a reliable signaling connection while providing isolation from the devices. Optoisolators can also be used in medical, automotive, and industrial settings for isolation purposes, such as communicating with sensors, controlling the flow of electricity, or providing status indications.

Working Principle

The working principle of the 6N140A/883B#100 optoisolator is relatively simple and straight-forward. When a signal is sent from the microcontroller or digital logic device to the optoisolator, the LED emits light that is picked up by the phototransistor contained in the separate assembly. This phototransistor then amplifies the signal and sends it to the output device. The optoisolator\'s shielding prevents any electrical spikes from being transmitted and thus provides an isolation layer between the input and output devices. The device works in the opposite direction as well - when a signal is sent from the output device, the phototransistor amplifies the signal and sends it back to the LED. The LED then converts the signal to a light source, which is then passed back to the microcontroller or digital logic device.

Conclusion

The 6N140A/883B#100 optoisolator is a versatile and reliable device designed to provide electrical isolation between input and output devices. It is commonly used in a variety of settings, such as 3D printing, A/V equipment, medical equipment, industrial settings, and automotive applications. The device works by receiving a signal from a microcontroller or digital logic device, amplifying the signal, then sending it to the output device in isolation. The optoisolator also works in reverse, providing another layer of isolation between the two devices.