The Quantum Devices Model QDH20 optical encoder provides encoder feedback in applications typically using a standard size 20 package. Outputs consist of a quadrature A and B with reference pulse Z as a standard feature. The output can be configured with either the industrial standard 5- to 26-V OL7272 line driver or open collector outputs. The encoder features two heavy-duty bearing sets holding the output shaft and two more bearings along with an integral flexible spring mount to isolate the working pieces of the encoder from mechanical stresses. Features include 500-kHz fundamental frequency response and a high operating temperature option (100 °C).
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