US Digital Datasheets for Rotary Encoders

Rotary encoders convert the angular position of a shaft or axle to an analog or digital code. There are two types of rotary encoders, absolute and incremental encoders, which can be controlled by various technologies which include mechanical, optical, magnetic and fiber optic.
Rotary Encoders: Learn more

Product Name Notes
Miniature Absolute Magnetic Shaft Encoder -- MA3 The MA3 is a miniature rotary absolute shaft encoder that reports the shaft position over 360° with no stops or gaps. The MA3 is available with an analog or a...
Absolute Magnetic Kit Encoder -- MAE3 The MAE3 is an absolute magnetic kit encoder that provides shaft position information over 360° of rotation with no stops or gaps. This magnetic encoder is designed to easily mount...
Optical Shaft Encoder -- S5 The S5 series optical shaft encoder is a non-contacting rotary to digital converter. Useful for position feedback or manual interface, the encoder converts real-time shaft angle, speed, and direction into...
Optical Shaft Encoder -- S6 The S6 series high resolution optical shaft encoder is a non-contacting rotary to digital converter. Useful for position feedback or manual interface, the encoder converts real-time shaft angle, speed, and...
Absolute Optical Encoder -- A2 The A2 absolute encoder is a non-contacting optical rotary position sensor which reports the shaft angle within a 360 deg. range. As opposed to incremental encoders, the A2 reports the...
Absolute Optical Encoder: Kit Version -- A2K The A2K absolute encoder is a non-contacting optical rotary position sensor which reports the shaft angle within a 360 deg. range. As opposed to incremental encoders, the A2K reports the...
Optical Kit Encoder -- E2 The E2 is a rotary encoder with a molded polycarbonate enclosure, which utilizes either a 5-pin locking or standard connector.This optical incremental encoder is designed to easily mount to and...
Optical Kit Encoder -- E3 The E3 is a high resolution rotary encoder with a molded polycarbonate enclosure, which utilizes either a 5-pin locking or standard connector. This optical incremental encoder is designed to easily...
OEM Miniature Optical Kit Encoder -- E4T The E4T miniature transmissive optical encoder is designed to provide digital quadrature encoder feedback for high volume, limited space applications. The E4T is designed to be a drop in replacement...
Optical Kit Encoder -- E5 The E5 Series rotary encoder has a molded polycarbonate enclosure with either a 5-pin or 10-pin finger-latching connector. This optical incremental encoder is designed to easily mount to and dismount...
Optical Kit Encoder -- E6 The E6 Series rotary encoder has a molded polycarbonate which utilizes either a 5-pin or 10-pin finger-latching connector. This optical incremental encoder is designed to easily mount to and dismount...
Miniature Optical Kit Encoder -- E8T The E8T transmissive optical encoder is designed to provide digital quadrature encoder feedback for high volume, compact space applications. The E8T is designed to be a drop in replacement for...
Optical Commutation Kit Encoder -- EC35 The EC35 quick assembly optical commutation encoder is designed for high volume, low cost, OEM motion control applications. The EC35 provides A/B/Z incremental outputs and U/V/W outputs for brushless motor...
Ball Bearing Optical Shaft Encoder -- H1 The H1 series ball bearing optical shaft encoder has a molded polycarbonate enclosure, which utilizes a 5-pin standard connector. This non-contacting rotary to digital converter is designed to provide digital...
Ball Bearing Optical Shaft Encoder -- H3 The H3 series ball bearing optical shaft encoder has a molded polycarbonate enclosure, which utilizes either a 5-pin locking or standard connector. This non-contacting rotary to digital converter is designed...
Ball Bearing Optical Shaft Encoder -- H5 The H5 series ball bearing optical shaft encoder has a molded polycarbonate housing and utilizes either a 5-pin or 10-pin finger-latching connector. This non-contacting rotary to digital converter is designed...
Ball Bearing Optical Shaft Encoder -- H6 The H6 series ball bearing optical shaft encoder has a molded polycarbonate housing,and utilizes either a 5-pin or 10-pin finger-latching connector. This non-contacting rotary to digital converter is designed to...
Hollow Bore Optical Encoder -- HB5M The HB5M is a hollow bore (hollow shaft / thru-bore) optical encoder with a machined aluminum enclosure and a clear anodized protective finish. The HB5M optical incremental encoder is designed...
Hollow Bore Optical Encoder -- HB6M The HB6M is a high resolution hollow bore (hollow shaft / thru-bore) optical encoder with a machined aluminum enclosure and a clear anodized protective finish. The HB6M optical incremental encoder...
Industrial Rugged Metal Optical Encoder -- HD25 The HD25 is a rugged optical incremental shaft encoder designed for heavy-duty industrial applications. The housing, machined from a solid billet aluminum block and finished with clear anodizing, conforms to...
Absolute Industrial Rugged Metal Optical Encoder -- HD25A The HD25A is a rugged absolute encoder designed for heavy duty industrial use. This absolute encoder is a non-contacting optical rotary position sensor which reports the shaft angle within a...
Optical Shaft Encoder -- S1 The S1 series optical shaft encoder is a non-contacting rotary to digital converter. Useful for position feedback or manual interface, the encoder converts real-time shaft angle, speed, and direction into...
Optical Kit Encoder -- S2 The S2 series high resolution optical shaft encoder is a non-contacting rotary to digital converter. Useful for position feedback or manual interface, the encoder converts real-time shaft angle, speed, and...
Miniature Optical Shaft Encoder -- 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...