S4T

The S4T miniature optical shaft encoder is a non-contacting rotary to digital converter. The S4T incorporates an LED light source, monolithic photo detector and mylar disk. A metal shaft with bushing or bearing versions are available. Useful for position feedback or manual interface, the encoder converts real-time shaft angle, speed, and direction into TTL-compatible quadrature outputs without index. It operates from a single +5VDC supply. The S4T encoder is available with ball bearings for motion control applications, or static drag to feel like a potentiometer for front-panel manual interface. The S4T uses a high retention, 4 conductor snap-in polarized 1.25mm pitch connector. Mating cables and connectors (See the Cables / Connectors web page) are not included, and are available separately.