• Highly miniaturized: 11 x 11 x 0.9 mm
  • Outputs A quad B and Index
  • Insensitive to magnetic interference fields
  • Robust against oil grease, liquids, dust, particles
  • Programmable resolution and max speed
  • Optional with holder, cable, and connector

The IT3403C incremental encoder kit consists of an encoder and a codewheel. The encoder is an integrated circuit in a PCB housing. It provides incremental A and B output signals in quadrature as well as an Index-pulse. The codewheel is a PCB with passive copper strips.

The resolution and the maximum speed of the encoder are user-programmable or can be programmed ex-factory.

Output signals

A quad B and Index


up to > 1’000’000 CPR


0 up to 8’600 RPM

A/B frequency

0 up to 1 MHz


5V, 30 mA


-20 to 100°C


0.1 – 0.6 mm

Codewheel Type




Number of periods 64 128 180
Outer diameter 28.2 mm 52.7 mm 72.6 mm
Inner diameter 12 mm 36 mm 56 mm
Readout Radius 10.35 mm 22.6 mm 32.53 mm
Thickness 0.73 mm 0.73 mm 0.73 mm

TPCD05 Codewheel with 64 periods, inner diameter 12 mm and outer diameter 28.2 mm for Incremental Encoders IT3402C, IT3403C and IT5602C

TPCD06 Codewheel with 128 periods, inner diameter 36 mm and outer diameter 52.7 mm for Incremental Encoders IT3402C, IT3403C and IT5602C

TPCD07 Codewheel with 180 periods, inner diameter 56 mm and outer diameter 72.6 mm for Incremental Encoders IT3402C, IT3403C and IT5602C

Dimensions of IT3403 encoder on encoder-holder type B.

Encoder with flat cable (pitch 1.27 mm) and 8-pin DIN41651 connector.

Dimensions (mm) of encoder-holder type A.

Encoder IT3403C

$ 116.50 Unit Price

Datasheet Table 1
3 = 0°


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