• Highly miniaturized: 5 x 6 x 0.8 mm
  • Outputs A quad B
  • Robust against oil grease, liquids, dust, particles
  • Programmable resolution and max speed
  • Optional with holder, cable and connector

The ID4501G incremental encoder kit consists of an encoder and a gearwheel. The encoder is an integrated circuit in a PCB housing. It provides incremental A and B output signals in quadrature. The gearwheel is in ferromagnetic steel and has a module 0.5.

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

Output signals

A quad B


up to x16’384

Tooth frequency

0 up to 25 kHz

A/B frequency

0 up to 1 MHz


5V, 10 mA


-20 to 100°C


0.1 – 0.6 mm

The ID4501G can be operated with a gear made of ferromagnetic material and with module 0.5. POSIC uses gears from the company NOZAG, the datasheet of these gears is under the downloads tab.

The ID4501G is not intended for operation with non-ferromagnetic gears.

The ID4501G is not intended for operation with gears with module < 0.4 or module > 0.6. 

Encoder dimensions (mm).

Recommended schematic.

Recommended footprint.

Dimensions (mm) of ID4501 encoder on encoder-holder type A with flat cable (pitch 1.27 mm) and 8-pin DIN41651 connector.

Encoder ID4501G

$ 74.56 Unit Price

Programmable by means of POSIC’s

Evaluation & Programming Tool or

pre-programmed ex-factory

Orientation of the encoder with respect to the gear

See datasheet Table 1

Maximum teeth frequency

See datasheet Table 2

Interpolation factor per tooth

See Datasheet Table 3

LookUp Table to compensate the periodic non-linearity of the gear teeth

See datasheet table 4

Ferromagnetic gear

See Datasheet Table 5

Holder on which the encoder is mounted

See datasheet table 6

Standard cable: 0 to 100°C

High-temp cable: -40 to 125°C

See datasheet Table 7

See datasheet Table 8


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