3532_0 - Hollow Shaft Optical Encoder IHC3808


Product Features

Ideal for use with motors, this hollow-shaft encoder fits easily onto an 8mm shaft. The index channel makes it easier to find the orientation of the motor on startup.

Product Description


This sturdy optical quadrature encoder can be attached to the 8mm rear shaft of a motor without need for a shaft coupler. It has 360 counts (full quadrature cycles) per rotation and can be installed easily by fitting it over the shaft and tightening the set-screw. This encoder makes use of the index channel, sending one pulse for every full rotation.


Product Specifications


Encoder Properties

Output Circuit Type Push-Pull (Single-Ended)
Encoder Resolution 360 CPR
Encoder Speed Max 4500 RPM


Electrical Properties

Supply Voltage Min 5 V DC
Supply Voltage Max 5 V DC
Output Frequency Max 100 kHz


Physical Properties

Shaft Diameter (Inner) 8 mm
Shaft Maximum Axial Load 10 N
Shaft Maximum Radial Load 20 N
Operating Humidity Min 30 %RH
Operating Humidity Max (Non-condensing) 85 %RH
Operating Temperature Min -10 °C
Operating Temperature Max 70 °C
IP Rating IP54
Weight 121 g




Comes Packaged With


  • Mounting screws and washers



This rotary encoder connects to:

The easiest way to connect your encoder to the 1057 or to the 1047 is to use a 3019 - HighSpeed Encoder Cable 50cm, cut it to the desired length and solder the encoder wires to the encoder cable as follows:


Function 3532 - Encoder 3019 - Phidget cable
+5V Red Red
Ground Black Black
Data (A) Green White
Data (B) White Brown
Index (Z) Yellow Green



You could also buy the male connector, which is a Molex 50-57-9405, and crimp it onto the end of the cable, if you have the appropriate tools.