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    2-Chan. A quad B ID1102C
    3-Chan A quad B + I IT3402C
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IT3402C Triple Channel Rotary Encoder Kit


IT3402C Incremental Linear Encoder with Codewheel

  • Highly miniaturized rotary encoder
  • Differential inductive sensing principle
  • Insensitive to magnetic interference fields
  • Robust against dust, particles, oil, grease, humidity, liquids 
  • Ultra-thin encoder and codewheel: 0.9 mm each
  • Optional with cable, connector and encoder-holder
  • Choice of 3 standard codewheel dimensions
  • Possibility to adapt codewheel to customer requirements  


Technical drawing IT3401C

  • Brushed and brushless motors
  • Industrial automation
  • Robotics
  • Laboratory automation
  • Office automation
  • Pumping and dispensing equipment
  • Medical devices
  • Rotary stages

Key specifications

Electrical connections IT3402C
Output signals A quad B and Index 
Phase shift 90 ± 45°
Duty Cycle 180 ± 50°
Resolution 256 - 1'474'560 CPR
Speed Depends on codewheel and resolution, see table below 
Supply 5.0 +/- 0.5 V, 30 mA typ.
Temperature -40 to 125°C
Airgap Nominal 0.2 mm, max 0.6 mm


ID3402C with three Codewheels
 Codewheel type




 Codewheel periods 64 128 180
 Inner diameter

 12 mm

 36 mm

 56 mm

 Outer diameter

 28.2 mm

 52.7 mm

 72.55 mm

 Readout radius

 10.35 mm

 22.6 mm

 32.53 mm

 Lowest resolution,

 highest speed

 256 CPR

up to 8'600 RPM

 512 CPR

up to 4'300 RPM

 720 CPR

up to 3'000RPM

 Highest resolution,

 lowest speed

 524'288 CPR

up to 8RPM

 1'048'576 CPR

up to 4 RPM

 1'474'560 CPR

up to 2 RPM

Codewheels with other dimensions and custom codewheels are available upon request.

Evaluation and Programming Tool

Evaluation and Programming Tool

The evaluation and programming tool consists of an interface board and a software that allow you to:

  • Evaluate a POSIC encoder and compare it with a reference encoder
  • Program the resolution
  • Program an encoder identification number
  • Program a LookUp Table for linearization


Go to the Evaluation and Programming Tool page

Buy rotary encoder kits and the corresponding Evaluation & Programming Tool in ourwebstore at www.posic.weebly.com/store



 Document PDF

Evaluation and Programming Tool
 Document PDF


3D drawings in STEP format


Encoder-Holder A

Codewheel with 64 periods

Codewheel with 128 periods

Codewheel with 180 periods

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