2-Channel encoder and codewheel, 11mm Optical Radius bundled pack

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The HEDB-9100 series are two channel optical incremental encoder modules offered with a codewheel. When used with a codewheel, these low cost modules detect rotary position. Each module consists of a lensed LED source and a detector IC enclosed in a small C-shaped plastic package. Due to a highly collimated light source and a unique photodetector array, these modules are extremely tolerant to mounting misalignment.

The HEDB-9100 has two channel quadrature output. The HEDB-9100 is designed for use with a HEDS-5120 codewheel which has an optical radius of 11.00 mm (0.433 inch). The quadrature signals and the single 5V supply input are accessed through five 0.025 inch square pins located on 0.1 inch (pitch) centers.


  • 150 LPI Resolution
  • High Performance
  • Resolution from 96 CPR up to 1000 CPR (Counts Per Revolution)
  • Low Cost
  • Easy to Mount
  • No Signal Adjustment required
  • Small Size
  • Operating Temperature:-40oCelcius to 100oCelcius
  • TTL Compatible
  • Two Channel Quadrature Output
  • Single 5V Supply


  • Printers
  • Plotters
  • Tape drivers
  • Industrial and factory Automation Equipments

Lifecycle Status


Substance Compliance

  • RoHS6
    Fully Compliant
Specification Value
Lifecycle Active
Distrib. Inventory Yes
RoHS6 Compliant Y
Lead Orientation Straight
Line Driver N
Frequency 100.0
Motion Type Rotary
Resolution 500 CPR
Optical Method Transmissive
Optical Radius (mm) 11.0
Terminations Pins For Connector