FG-30723-S21

Microphones Overview

The FG-30723-S21 is an omnidirectional microphone condenser manufactured by Knowles. It utilizes balanced armature technology, a core innovation of the brand, designed for high-fidelity audio capture in compact form factors. The component is specified as a match analog type, indicating precise acoustic matching for stereo or multi-microphone arrays. It operates within standard consumer electronics environments requiring reliable sound input.

Microphones Feature Summary

• Omnidirectional sound pickup pattern for uniform sensitivity from all angles
• Balanced armature transducer technology for high fidelity and low distortion
• Matched analog specification ensuring consistent performance across units

Microphones Applications

• Hearing aid devices
• Mobile communication handsets
• Voice recognition systems

Microphones Procurement Notes

Verify the specific revision suffix against the manufacturer's current datasheet to ensure compatibility with your design requirements. Confirm RoHS compliance status directly with the supplier or official documentation, as regulatory statuses can change. Ensure the matched pair requirement is addressed in your assembly process if using multiple units for stereo applications.

Microphones Selection Notes

Select this component when a compact, high-sensitivity omnidirectional microphone is required for voice-centric applications. The balanced armature architecture offers advantages in size and power consumption compared to MEMS alternatives in specific legacy designs. Consider the matched analog characteristic if phase coherence between multiple microphones is critical for noise cancellation or beamforming algorithms.

Microphones Part Context

Knowles is a pioneer in balanced armature technology, originally developing it for hearing aids before expanding into consumer electronics. The FG series represents their line of miniature microphones designed for integration into space-constrained portable devices. This specific model leverages decades of expertise in precision acoustic transducers to deliver reliable performance in demanding audio environments.

Microphones Replacement Considerations

No direct public substitute part numbers are confirmed for this specific matched analog variant. Due to the proprietary nature of balanced armature designs and tight tolerance matching, cross-referencing requires careful evaluation of acoustic impedance and frequency response curves by the system designer.