MOC208M

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Optoisolators are devices used to isolate two circuits, with one side being an optical side and the other being an electrical side. MOC208M is a two channel optoisolator series manufactured by Fairchild Semiconductor. This device can help protect sensitive equipment from dangerous spikes in current as it requires the optical side of the circuit to be connected to the signal inputs, while the secondary side of the optoisolator receives the output signal.

The MOC208M is an optocoupler specifically developed for photovoltaic applications. It is packaged in an 8-pin Mini Small Outline package and contains an LED optically activated device that acts as an optical gate when voltage is applied. The MOC208M has two optically isolated channels, one phototransistor output channel and another photovoltaic output channel. The operation of the phototransistor output channel works on the principle of photoconductive isolation and for the photovoltaic output channel, photovoltaic isolation has been used.

The phototransistor output works by using a single input on one side and a single output on the other side. When the input voltage is provided, the LED emits light and the phototransistor absorbs this light and starts conducting. This in turn causes the phototransistor collector-emitter voltage to decrease and a voltage is applied to the output of the optoisolator. The photovoltaic output channel works on the principle of generating electrical energy from light. When the LED is forward biased, light is generated and falls on the photovoltaic cell, which generates a voltage in response. This voltage is then used as the output.

The MOC208M optoisolator is used in a variety of photovoltaic applications, such as solar tracking systems, photovoltaic water pumping systems, photovoltaic lighting systems, and other photovoltaic devices. It is designed to provide high-performance isolation between the input and output terminals and is designed for use in applications operational at temperatures from -55° to 110°C. The MOC208M series is ideal for protecting sensitive circuitry from high current, electrostatic discharge, and other potential threats.

The MOC208M is a reliable and cost-effective optoisolator. It provides very high performance optical isolation and is available at very low cost. It is suitable for use in a variety of photovoltaic applications due to its combination of photovoltaic output and phototransistor output channels. The MOC208M series can be used to provide a robust isolation barrier between signal and power circuits in photovoltaic systems, making it a valuable component in any optoisolator system.

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