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Digi-Key offers the world's largest selection of electronic components in stock and available for immediate shipment. From prototype to production, we are here to fuel innovation all over the world. We are proud to be highly recognized as the leader for:

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About Isolators

Isolator products are used where it is necessary to pass information, control signals, or gate drive signals between portions of a system that must not have a direct electrical connection with each other, whether for functional or safety-related reasons. Within this category, devices are further organized according to the character of their output stages; some device outputs behave like transistor, others like logic gates, photovoltaic (solar) cells, thyristors, or photoresistors.

Image of Opto Isolator schematic symbol Image of Photo Darlington Isolator schematic symbol