High Resolution Kit Encoder

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The Avago HEDR-5xxx Series encoders are high performance replacements for our existing low cost HEDS-5xxx series three channel optical encoders. These upgraded encoders now come with higher resolution of 1200cpr to 3600cpr and are designed for easy assembly. The base-plate and outer diameter of these encoders are also compatible with the legacy HEDS-5xxx series making them ideal replacements for users who wish to upgrade due to higher CPR requirements.

Each encoder contains a codewheel, LED source, detector and integrated circuitry. As the codewheel rotates the detector IC generates two square waves in quadrature and an index pulse (high state) of 90°e (gated to signal A and B low), once per each full rotation of the codewheel.

The HEDR-5xxx encoders accommodate shaft diameters of 2mm to 8 mm and are capable of operation in high temperature environments up to 100°C. Either shielded cable (single ended or line driver) or ribbon cable (line driver) pin-out connectivity options are available.


  • Three channel encoder A,B and I
  • Available with option of ribbon or shielded cabling
  • Single 5V supply
  • Resolution of 1200 to 3600 CPR
  • Available in TTL compatible, open collector and line driver options
  • Quick assembly
  • IP40 rating
  • No signal adjustment required
  • Small size -40 °C to 100 °C operating temperature


High volume applications such as industrial printers, plotters, tape drives, positioning tables and automatic handlers

Lifecycle Status


Lifecycle Status



  • RoHS6
    Fully Compliant
Specification Value
Lifecycle Active
Distrib. Inventory Yes
Samples Available Yes
RoHS6 Compliant Y
Line Driver Y
Motion Type Rotary
Optical Method Reflective
Output Type Digital
Product Size (mm) 30Wx35Lx20H
No. of Channels 3
Shaft Diameter 5
Shaft Diameter (Unit of Measure) mm
Operating Temperature Range -40°C to +100°C
Operating Voltage (V) [5.0V]
Resolution 2048 CPR


Application Note (1) i
Data Sheet (1) i


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