FB-EM-30346-000

Microphones Overview

The FB-EM-30346-000 is an omnidirectional analog boom microphone manufactured by Knowles. It operates within a frequency range of 300 Hz to 4 kHz and requires a supply voltage between 1.3 V and 10 V. The device exhibits a sensitivity of -48 dB ±3 dB at 74 dB SPL. Electrical characteristics include an impedance of 4.4 kOhms and a current rating of 50 uA. The component features wire leads for connection and has a diameter of 19 mm.

Microphones Feature Summary

• Omnidirectional acoustic pickup pattern suitable for consistent sound capture from all directions.
• Designed as a boom assembly with wire leads for integration into communication headsets.
• Operates on standard analog signal output compatible with typical headset electronics.

Microphones Applications

• Communication headsets requiring boom-mounted microphones
• Analog audio input systems in professional communication equipment
• Headset assemblies utilizing rigid or flexible boom configurations

Microphones Procurement Notes

Verify the specific ordering suffix and revision status when sourcing this component, as manufacturer notifications may indicate process changes affecting physical dimensions or electrical tolerances. Confirm RoHS compliance status directly with the supplier documentation. Ensure the receiving facility validates the part number against the latest Knowles product change notifications to guarantee compatibility with existing headset designs and manufacturing processes.

Microphones Selection Notes

Select this component when an omnidirectional analog microphone is required for boom-style headset applications. The fixed sensitivity and impedance values must match the pre-amplifier input requirements of the host system. Consider the 19 mm diameter and wire lead configuration during mechanical design integration. Verify that the operating voltage range aligns with the headset's power supply architecture before finalizing the bill of materials.

Microphones Part Context

This part belongs to Knowles' line of boom microphones designed for communication headsets. These assemblies are engineered for either flexible or rigid boom configurations. The series offers performance options focused on noise rejection and high-frequency response. The FB-EM-30346-000 represents a specific variant within this family, characterized by its analog output and omnidirectional characteristics.

Microphones Replacement Considerations

Consult official substitution lists for equivalent Knowles models such as FB-EM-30342-000 or FB-EM-30343. Verify that any substitute maintains identical sensitivity, impedance, and form factor specifications. Cross-reference datasheets to ensure interface compatibility and mechanical fit within the existing headset boom structure.

Microphones FAQ

What is the directional characteristic of the FB-EM-30346-000?

The microphone features an omnidirectional polar pattern, capturing sound equally from all directions.

What is the specified sensitivity of this microphone?

The sensitivity is rated at -48 dB ±3 dB when measured at a sound pressure level of 74 dB SPL.

Does this component use wire leads or surface mount pads?

The FB-EM-30346-000 utilizes wire leads for electrical connection rather than surface mount termination.