EM-24047-C36

Microphones Overview

The Knowles EM-24047-C36 is a subminiature omnidirectional electret condenser microphone designed for high-performance audio capture in space-constrained environments. It features a compact square footprint with dimensions of 3.57 mm in length, 3.57 mm in width, and 2.28 mm in depth. The device operates at a supply voltage of 1.3 VDC with a current rating of 50 uA. Key electrical specifications include an impedance of 4.4 kOhms, a sensitivity of -54 dBA, and a resonant frequency of 5.8 kHz. It utilizes SMD/SMT termination style for surface mount integration.

Microphones Feature Summary

• Omnidirectional acoustic design for uniform sound pickup from all directions
• Subminiature form factor suitable for tight spatial constraints
• Low power consumption operation compatible with portable battery-powered devices

Microphones Applications

• Mobile communication devices
• Voice recognition systems
• Portable consumer electronics

Microphones Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with the manufacturer or authorized distributors before procurement. Confirm that the SMD/SMT termination style matches your PCB layout requirements. Ensure the operating voltage and current ratings align with your system's power budget to guarantee reliable performance under all environmental conditions.

Microphones Selection Notes

Select this component when a low-profile, omnidirectional microphone is required for embedded audio applications. The 1.3 VDC operating voltage makes it suitable for modern low-voltage digital systems. Consider the 4.4 kOhm impedance and -54 dBA sensitivity when designing the pre-amplifier stage to ensure optimal signal-to-noise ratio and gain settings for the target application environment.

Microphones Part Context

The EM-24047-C36 belongs to Knowles' portfolio of subminiature electret microphones. These components are engineered for durability and consistent acoustic performance in rugged environments. The series is characterized by its small physical size and robust construction, making it a standard choice for manufacturers prioritizing miniaturization without compromising audio quality in compact electronic assemblies.

Microphones Replacement Considerations

Cross-reference with other Knowles subminiature omnidirectional microphones such as the EA-21867-C36 or EM-23369-C36. Verify dimensional compatibility, specifically the 3.57 x 3.57 mm footprint and 2.28 mm height. Check if alternative parts offer matching impedance (approx. 4.4 kOhms) and sensitivity levels (-54 dBA) to maintain circuit performance without redesign.