Two and Three Channel Encoder Code Wheels

Currently Viewing:

Broadcom offers a wide variety of encoder code wheels for use with the HEDS-9000, HEDS-9100, HEDS-9040, and HEDS-9140 series Encoder Modules. Designed for many environments, applications, and budgets, these encoder code wheels are available in Glass, Film, and Metal. They are available in resolutions from 96 Counts Per Revolution (CPR) to 1024 CPR on an 11 mm optical radius and 500 to 2048 CPR on a 23.36 mm optical radius.

Each of the three encoder code wheel materials offers certain advantages. Metal codewheels are the most versatile with a temperature rating up to 100 degrees C, resolution to 512 CPR (28 mm diameter), and 2 and 3 channel outputs. Film encoder code wheels offer higher resolution (up to 1024 CPR on a 28 mm diameter) with an operating temperature of 70 degrees C. Glass encoder code wheels combine the best of film and metal, offering a temperature rating of 100 degrees C and resolutions to 1024 CPR on a 28 mm diameter.

In addition, each material offers a specific reliability rating. It is important to consider the specific application operating environment, long term operating conditions, and temperature ranges when choosing a codewheel material.


  • Encoder Code wheels Available in Glass, Film, and Metal
  • Available in Two Standard Diameters
  • Cost Effective
  • Resolutions from 96 CPR to 2048 CPR
  • For Use with HEDS-90XX/91XX Series Two and Three Channel Encoders

Lifecycle Status


Substance Compliance

  • RoHS6
    Fully Compliant
Specification Value
Lifecycle Active
Distrib. Inventory Yes
Artwork Orientation Artwork Opposite Hub Side
Hub Y
RoHS6 Compliant Y
Frequency 100.0
Optical Method Transmissive
Optical Radius (mm) 11.0
Shaft Diameter 11
Shaft Diameter (Unit of Measure) in
Resolution 500 CPR
Shaft Diameter 11 in