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Low Profile Rotary Kit Encoders

  • Size Dia.xW [mm]: ø23.12 x 11.45

  • Encoder Type: Incremental optical

  • Resolution [CPR]: 1K, 2K, 4K, 8K, 16K

  • Freq. Response [RPM] : 25K

The SMAC SRE-30, High Resolution rotary encoder is similar in mounting to other industry standard enclosed rotary encoders. This model is a miniature non-contacting high-resolution incremental rotary encoder, which delivers two count channels in quadrature (called A and B) as output signals. The two output waveforms are 90 degrees out of phase and indicate both the position and the movement direction: when Channel A leads Channel B, for example, then the movement of the disc is clockwise. Otherwise, if B leads A, then the displacement is in the opposite direction. This encoder is available in 1000, 2000, 4000, 8000 and 16000 CPR resolution.


  • Light Source: Light Emitting Diode;

  • Light Sensor: Optical Asic;

  • Resolution: 1000, 2000, 4000, 8000 or 16000 CPR

  • Output Format: Differential RS422 line driver output. Two count channels A and B in quadrature with an optional ZR output;

  • Quadrature spec.: 90°, ±45° at maximum conditions;

  • Rise and Fall Time: 1µm max. into 1000 pF load;

  • 6mm standard shaft size

See here for detailed Technical Information


Please just get in touch for a chat about any of the encoders we have available.