EF-26665-000

Speakers Overview

The Knowles EF-26665-000 is a balanced armature receiver speaker designed for board mount applications. It features a rectangular footprint measuring 7.87 mm in length, 5.59 mm in width, and 4.01 mm in depth. The component operates with an impedance of 536 Ohms and utilizes solder pad termination. It delivers a sound pressure level of 126.5 dBA at a frequency of 6.3 kHz. The device belongs to the EF series and is classified under audio devices.

Speakers Feature Summary

• Balanced armature transducer technology
• High sound pressure level output
• Rectangular surface-mount package design

Speakers Applications

• Hearing aids
• Medical audio devices
• Compact communication equipment

Speakers Procurement Notes

Verify the specific datasheet revision and RoHS compliance status before integration. Confirm that the 536 Ohm impedance matches the driving circuit requirements. Ensure the solder pad termination style is compatible with the PCB layout. Check for any recent product change notifications regarding material or dimensional updates.

Speakers Selection Notes

Select this component when high acoustic output is required in a small form factor. The 536 Ohm impedance suits specific driver configurations. Consider the 126.5 dBA sensitivity for efficiency needs. Evaluate the rectangular dimensions against available space constraints in the target enclosure.

Speakers Part Context

This part is part of Knowles' EF series of receivers. It is distinct from other series like ED or EA which serve different acoustic roles. The EF series focuses on high-performance audio reproduction in miniature packages suitable for wearable and medical electronics.

Speakers Replacement Considerations

Check for direct substitutes within the EF series with similar impedance and SPL. Verify mechanical compatibility if replacing with other rectangular receivers. Consult official documentation for approved alternative part numbers.