FB-DW-23249-000

Microphones Overview

The Knowles FB-DW-23249-000 is an analog noise-canceling boom microphone designed for communication headsets. It features a bent plastic boom structure with wire leads and no connector. The device operates within a frequency range of 300 Hz to 4 kHz and requires a supply voltage between 1.3 V and 10 V. Key electrical specifications include a current rating of 200 uA, an impedance of 2.5 kOhm, and a noise cancellation performance of -64dB ±3dB at 74dB SPL. The unit has an IP54 ingress protection rating, with physical dimensions of 4.47 mm diameter and 159 mm depth.

Microphones Feature Summary

• Integrated noise-canceling technology for improved audio clarity in noisy environments
• Bent plastic boom design optimized for headset mounting
• IP54 rated enclosure providing protection against dust and water splashes

Microphones Applications

• Communication headsets requiring noise reduction
• Two-way radio accessories
• Industrial communication equipment

Microphones Procurement Notes

Verify the specific ordering suffix and mechanical dimensions against the official datasheet before procurement. Confirm that the wire lead configuration matches the target assembly requirements. Ensure the operating voltage range aligns with the system power supply. Check for RoHS compliance status if required by regulatory standards.

Microphones Selection Notes

Select this component when a fixed boom geometry and analog output are required. Consider the IP54 rating for environmental durability. Evaluate the 300 Hz to 4 kHz frequency response against voice clarity needs. Verify compatibility with existing headset mounting structures due to the specific bent boom shape.

Microphones Part Context

This model belongs to the Knowles PNR series of boom microphones. It is part of a family of analog acoustic components designed for professional communication applications. The FB-DW variant specifically denotes the bent plastic boom construction style.

Microphones Replacement Considerations

PNR-23249-000 is listed as a related part number in documentation. Verify mechanical fit and electrical parameters before substitution.