FB-EI-31809-000

Microphones Overview

The Knowles FB-EI-31809-000 is a boom microphone assembly designed for audio applications. It features a diameter of 18 mm (0.709 inches) and a depth of 7.6 mm. The component utilizes wire leads for connection and is RoHS compliant. This assembly integrates the microphone element within a boom structure to facilitate directional sound capture in headsets or communication devices.

Microphones Feature Summary

• Boom-style mechanical assembly for directional audio pickup
• Wire lead termination for circuit integration
• RoHS compliant construction

Microphones Applications

• Headset microphone assemblies
• Communication device boom arms
• Audio input modules requiring directional sensitivity

Microphones Procurement Notes

Verify the specific revision and manufacturing date code upon receipt, as acoustic components may have batch-specific tolerances. Confirm that the wire lead length and connector type match the target PCB or harness design requirements before final assembly integration.

Microphones Selection Notes

Select this part when a pre-assembled boom microphone solution is required rather than a standalone capsule. Ensure the physical dimensions of 18 mm diameter and 7.6 mm depth fit the available space in the housing. Verify compatibility with the intended headset or device mounting mechanism.

Microphones Part Context

This component belongs to Knowles' audio product portfolio, specifically categorized under microphones and boom assemblies. It serves as a complete sub-assembly rather than a discrete electronic component, combining the transducer with structural support for end-user audio equipment.

Microphones Replacement Considerations

No public substitute part numbers are documented for this specific boom assembly model. Replacement requires matching the exact mechanical dimensions, electrical interface, and acoustic performance characteristics of the original unit.