+44 (0) 1761 234 328

(0) items


You have no items in your shopping cart.

3531_0 Optical Rotary Encoder HKT22

Product Code: 3531
Excl. VAT: £27.54 Incl. VAT: £33.05
  • Buy 5 for £24.91 (£29.89 incl. tax) each and save 10%
  • Buy 10 for £24.30 (£29.16 incl. tax) each and save 12%
  • Buy 50 for £22.61 (£27.13 incl. tax) each and save 18%
  • Buy 100 for £21.26 (£25.51 incl. tax) each and save 23%
You will earn 27 Robo Points for buying this product

This low-cost encoder is designed to fit on the rear shaft of our stepper motors. Measure the rotation of your motor even when it stalls or missteps.




  • 0.9 mm Hex Key for set-screws

  • Plastic encoder cap and mount

  • Encoder disk

  • Encoder PCB

  • Two screws

  • 3035 - Cable for HKT22 Encoder

This compact, economical optical quadrature encoder can be attached to the 4mm rear shaft of a motor. It has 300 counts (full quadrature cycles) per rotation and can be installed by fitting it over the shaft, mounting it to the back of the motor, and tightening the set-screw. This encoder does not support the use of an index channel.


Optical Rotary Encoder

The mounting holes on the HKT22 encoder line up with the holes on the back of any rear-shaft stepper motor from Phidgets, Inc. It connects to any of the following interface boards via the included cable:

Encoder Properties

Output Circuit Type Push-Pull (Single-Ended)
Encoder Resolution 300 CPR


Electrical Properties

Supply Voltage Min 5 V DC
Supply Voltage Max 5 V DC
Output Frequency Max 30 kHz


Physical Properties

Shaft Diameter 4 mm
Operating Humidity Min 30 %RH
Operating Humidity Max (Non-condensing) 85 %RH
Operating Temperature Min -10 °C
Operating Temperature Max 85 °C
IP Rating IP40
Weight 4 g

Product Attachments

View File3531 Datasheet    Size: (200.19 KB)
View File3531 Mechanical Drawing    Size: (41.75 KB)
View File3531 3D Step File    Size: (100.95 KB)

Whenever possible, items which are in stock are dispatched the same day, or the next working day.

Large and/or heavy items are dispatched by UPS courier service and these orders must be placed before 15:00hrs (GMT) to ensure same day dispatch.

Small items are normally sent using a Royal Mail service for UK orders, and International Airmail or UPS for overseas orders

Returns Policy

3531_0 Optical Rotary Encoder HKT22

Enquiry Us

Post your comment

Active Robots