High Temperature 125 degrees C Two Channel Optical Incremental Encoder Modules

Currently Viewing:

The HEDT-9000 series and the HEDT-9100 series are high performance, low cost, optical incremental encoder modules that operate to 125 degreesC. When used with a codewheel, these modules detects rotary position. The modules consist 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 two channel digital outputs and 5V supply input are accessed through five 0.025 inch square pins located on 0.1 inch centers.

Standard resolutions for the HEDT-9000 are 500 CPR and 1000 CPR for use with a HEDS-6100 codewheel or equivalent. For the HEDT-9100, standard resolutions between 96 CPR and 512 CPR are available for use with a HEDS-5120 codewheel or equivalent.

Standard resolutions between 256 and 2000 counts per revolution are available. Consult local Broadcom sales representatives for other resolutions.


  • High Performance
  • High Resolution
  • Low Cost
  • Easy to Mount
  • No Signal Adjustment Required
  • Insensitive to Radial and Axial Play
  • -40 degrees C to 125 degrees C Operating Temperature
  • Two Channel Quadrature Output
  • TTL Compatible
  • Single 5V Supply

Lifecycle Status


Substance Compliance

  • RoHS6
    Fully Compliant
Specification Value
Lifecycle Active
Distrib. Inventory Yes
RoHS6 Compliant Y
Motion Type Rotary
Optical Radius (mm) 11.0
Resolution 100
Resolution (Unit of Measure) CPR
Resolution 100 CPR
Data Sheet1 i
Product Change Notice (PCN)2 i
Reliability Data Sheet1 i