MOC8050SR2M Isolators

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Optoisolators, or optocouplers, provide galvanic isolation between different circuits while allowing their signals to be transferred. MOC8050SR2M is an optoisolator that contains a transistor with photovoltaic output, making it ideal for various applications. The following is an overview of the MOC8050SR2M’s application field and working principle.

Application Field

The MOC8050SR2M optoisolator consists of a high-speed, low-voltage phototransistor and an infrared LED that are optically coupled together. This design, combined with its maximum rating voltage of 40V, makes it well suited for use with automation, product testing, power systems, and many other industrial applications.

One of the most common applications involving the MOC8050SR2M is switching, like fan control, because the optoisolator can directly control a high-power circuit without the risk of direct electrical contact. Another typical use is signal transmission between two separate circuits; the photodiode samples the incoming signal and transmits it via optical communication to the LED, thus providing isolation from the internal workings of the circuit.

Working Principle

The MOC8050SR2M optoisolator works in a very straightforward way. The LED, powered by a small DC voltage, emits infrared radiation that triggers the photodiode. This creates a current flow in the diode, activating the transistor in the process and providing the necessary switch. In this way, the MOC8050SR2M allows the signal of one circuit to be transferred to the other without any direct electrical contact between the two.

The MOC8050SR2M has a typical turn-on delay of 10µs, making it suitable for high speed switching applications. Furthermore, it features a very low residual on-voltage of 0.1V and low off-current of 0.4mA, ensuring excellent system performance.

In conclusion, the MOC8050SR2M is a perfect choice for various application scenarios due to its excellent performance and ergonomic design. Its combination of a high-speed phototransistor and an infrared LED makes it suitable for a variety of industrial and consumer applications.

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