EA-26520-000

Overview

The Knowles EA-26520-000 is an analog electret condenser microphone designed for omnidirectional sound pickup. It operates within a frequency range of 100 Hz to 4.8 kHz and features a sensitivity of -59dB ±3dB at 74dB SPL. The device requires a rated voltage of 1.3V and utilizes solder pads for board mounting. Its physical dimensions are 0.219 inches by 0.157 inches (5.56mm x 3.99mm) in a rectangular shape.

Feature Summary

• Omnidirectional acoustic pattern for uniform sound capture from all directions
• Electret condenser technology for stable analog audio signal output
• Rectangular surface-mount form factor with solder pad termination

Applications

• Consumer electronic audio input devices
• Voice recognition systems requiring broad pickup patterns
• General purpose analog microphone circuits

Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with Knowles or authorized distributors before finalizing procurement plans. Confirm that the solder pad mounting method aligns with your assembly process capabilities. Ensure the 1.3V operating voltage requirement is compatible with your system power supply design to prevent performance degradation or component damage.

Selection Notes

Select this component when an omnidirectional response is required for general audio capture rather than directional applications. The -59dB sensitivity specification suits environments with moderate sound pressure levels. Verify that the 100 Hz to 4.8 kHz bandwidth meets the target application's frequency requirements, as it does not extend into high-frequency ultrasonic ranges. Ensure the rectangular footprint fits within the designated PCB area constraints.

Part Context

This part belongs to the Knowles EA series of microphones, which focuses on compact audio solutions. The EA series typically offers various form factors and sensitivity options tailored for different consumer electronics needs. This specific model represents a standard omnidirectional option within that lineup, distinguished by its rectangular package and specific electrical characteristics compared to other variants in the same family.

Replacement Considerations

Consult official Knowles documentation for direct cross-reference part numbers. Ensure any substitute maintains the same omnidirectional pattern, similar sensitivity around -59dB, and compatible 1.3V operating voltage. Verify that the replacement component matches the 5.56mm x 3.99mm rectangular footprint and solder pad configuration to ensure mechanical compatibility.