EK-25033-C09

Microphones Overview

The EK-25033-C09 is a subminiature electret condenser microphone manufactured by Knowles. It features an omnidirectional polar pattern and operates within a frequency range of 100 Hz to 4.5 kHz. The device requires a supply voltage between 0.9 V and 10 V. Its sensitivity is specified as -53 dB ±2 dB at 74 dB SPL. The physical dimensions are 5.56 mm in length, 3.98 mm in width, and 2.21 mm in height. It utilizes solder pads for electrical connection.

Microphones Feature Summary

• Omnidirectional acoustic design for uniform sound capture from all directions
• Subminiature form factor suitable for space-constrained electronic assemblies
• Wide operating voltage range supporting diverse circuit power supplies

Microphones Applications

• Portable audio recording devices
• Voice recognition systems
• Consumer electronics with limited internal volume

Microphones Procurement Notes

Verify the specific suffix C09 against official Knowles documentation to confirm pinout configuration and terminal type. Ensure the selected variant matches the required sensitivity tolerance and frequency response specifications for the target application. Confirm compliance status with relevant regulatory standards prior to integration.

Microphones Selection Notes

Select this component when an omnidirectional pickup pattern is required in a compact enclosure. The wide voltage compatibility allows flexibility in power supply design. Evaluate the -53 dB sensitivity against the noise floor requirements of the downstream amplifier stage to ensure adequate signal-to-noise ratio.

Microphones Part Context

This model belongs to the EK series of subminiature electret microphones produced by Knowles. These components are engineered for high-performance audio capture in rugged environments. The series emphasizes reliability and consistent performance across various consumer and industrial applications requiring small footprint solutions.

Microphones Replacement Considerations

Cross-reference part numbers such as EK-25033-A21 or EK-25024-C09 for potential mechanical or electrical alternatives. Verify that substitute models maintain identical dimensional constraints and mounting interface requirements before implementation.