Optical Switches

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Optimize the mechanical resolution, coupling efficiency, & ambient light rejection with Jameco's selection of optical switches. Our stock of the H21A series of opaque photo interrupters are single channel switches consisting of a Gallium Arsenide infrared emitting diode and a NPN silicon photo transistor mounted in a polycarbonate housing. These devices feature a polycarbonate case protected against ambient light. Choose from our wide selection below!

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Serving our customers since 1974

Customer Care 1-800-831-4242

Optical Switches