EM-23446-C36

Microphones Overview

The Knowles EM-23446-C36 is an omnidirectional electret condenser microphone designed for hearing aid applications. It features a standard frequency response ranging from 100Hz to 5kHz with a sensitivity of -56dB ±3dB at 74dB SPL. The component operates at a supply voltage of 1.3V and draws a current rating of 50uA. Its impedance is specified at 4.4 kohms. The physical dimensions are 3.57mm in length, 3.57mm in width, and 2.21mm in depth. It utilizes SMD/SMT termination types for surface mount integration.

Microphones Feature Summary

• Omnidirectional acoustic design for consistent sound capture
• Standard frequency response optimized for speech clarity
• Low power consumption suitable for portable devices

Microphones Applications

• Hearing aids
• Voice recognition systems
• Medical audio equipment

Microphones Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct configuration. Confirm that the received components match the required RoHS compliance status and package type. Cross-reference the part number with authorized distributors to validate authenticity and avoid counterfeit risks during acquisition.

Microphones Selection Notes

Select this component when a compact, low-power omnidirectional microphone is required for hearing aid or similar medical devices. Ensure the operating environment supports the specified 1.3V supply voltage and 50uA current draw. Verify that the 3.57mm x 3.57mm footprint fits within the target PCB constraints and that the SMD termination method aligns with the assembly process.

Microphones Part Context

This microphone belongs to Knowles' specialized audio product line focused on miniaturized solutions for healthcare. It is engineered to meet the stringent size and power requirements of modern hearing instruments. The design prioritizes acoustic performance within a minimal envelope, supporting high-fidelity voice transmission in constrained spaces typical of wearable medical technology.

Microphones Replacement Considerations

Consult official substitution guides for compatible alternatives. No public confirmed substitute part numbers are available in the provided data.