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Knowles TO / BTO Omni-Directional Microphones

Knowles TO Microphones are small, thin omni-directional microphones that are perfect for all applications where space is an issue. The TO series can also be used in directional applications as either a matched omni-directional pair, or in the TP series uni-directional / omni-directional pair.

The BTO is an improved version of the TO microphone. It offers enhanced PFA performance, as well as power-on reset and an electrical high pass filter. The BTO is ideal in directional applications as a matched omni-directional pair.

Features

  • TO
    • Improved RFI and EMI suppression
    • Undamped, screen damped, and internally damped responses
    • Numerous port locations
  • BTO
    • Improved power feedthrough attenuation
    • Improved settling time
    • Includes an electrical high pass filter

Outline Drawing

Mechanical Drawing - Knowles TO / BTO Omni-Directional Microphones
Published: 2014-12-03 | Updated: 2020-12-16