This datasheet describes the ZFDC-10-21, a coaxial directional coupler operating from 1 to 1000 MHz.

Key Features

The device features wideband operation, excellent directivity (25 dB typical), and a rugged shielded case.


The ZFDC-10-21 is suitable for VHF/UHF cellular, instrumentation, communications, receivers, and transmitters.

Electrical Specifications

The coupler’s electrical specifications include coupling, mainline loss, directivity, and return loss, with detailed performance data provided across the frequency range.


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