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  • 3 Vitoshka Zornica str. Sofia Bulgaria
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Opto 22 Product Philosophy: Here Today, Here Tomorrow

Introducing Opto 22 Products In 1974, engineer Bob Engman started Opto 22 with just 22 products: optically isolated solid-state relays (SSRs) manufactured for better reliability using a new potting process he helped invent. Today, more than 45 years later, the company still sells and supports all 22 of those original SSRs—plus hundreds of other reliable

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