EF-27715-000

Speakers Overview

The Knowles EF-27715-000 is a rectangular magnetic receiver speaker with an impedance of 327 Ohms. It features solder pad termination and operates within a frequency range of 200 Hz to 6.3 kHz. The unit has dimensions of 7.87 mm in height, 5.59 mm in width, and 4.01 mm in depth. Sensitivity ratings are documented at 126 dB for side port configurations and 122 dB for top port variants.

Speakers Feature Summary

• Rectangular form factor designed for compact electronic assemblies
• Magnetic technology construction for reliable audio output
• Solder pad termination for direct board mounting

Speakers Applications

• Portable communication devices requiring small form factor speakers
• Industrial equipment with limited internal space constraints
• Consumer electronics utilizing magnetic receiver technology

Speakers Procurement Notes

Verify the specific port configuration required for your design, as documentation indicates both side port (126.5 dB) and top port (122 dB) variations exist for this part number. Confirm that the 327 Ohm impedance matches your driver circuit capabilities. Ensure the physical envelope of 7.87 x 5.59 x 4.01 mm fits within your enclosure limits before finalizing procurement.

Speakers Selection Notes

Select this component when a high-impedance magnetic receiver is needed for space-constrained applications. The rectangular shape allows for efficient use of board real estate compared to circular alternatives. Consider the specific sensitivity rating required, as port orientation affects acoustic performance. Ensure compatibility with standard soldering processes for pad terminations.

Speakers Part Context

This component belongs to the Knowles Speakers & Transducers category, specifically designed as a receiver element. It utilizes magnetic technology to convert electrical signals into sound waves. The product line focuses on providing reliable audio solutions for portable and industrial devices where size and weight are critical factors.

Speakers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify mechanical fit and electrical impedance compatibility if considering alternative manufacturers. Check datasheet specifications for sensitivity and frequency response alignment.