Orders over $50 qualify for a free gift claim yours here after filling your shopping cart.


Have a look at our quality optocouplers (also know as opto-isolators) including 4N25, -26, -28, -30, and -32 varieties which transfer electrical signals using lights waves in order to provide electrically isolated coupling between input and output. Circuit Specialists' general purpose optocouplers have gallium arsenide infrared-emitting diodes which drive silicon phototransistors in six-pin dual inline packages. Reduced prices when you buy in bulk.

We work hard to provide you with the best possible shopping experience. But don't take our word for it — here are some past customer reviews: