FEF-27351-P16

Speakers Overview

The Knowles FEF-27351-P16 is a magnetic receiver designed for high-power hearing aid applications. It features a balanced armature technology with a frequency range of 200 Hz to 6.3 kHz and an impedance of 140 Ohms. The component delivers an efficiency of 124 dBA and utilizes ferrofluid damping for stability. It has a top port configuration and is comparable in size to standard EF receivers, offering a medium DCR to impedance ratio suitable for demanding audio output requirements.

Speakers Feature Summary

• Balanced armature design optimized for high power hearing aid environments
• Ferrofluid damping ensures mechanical stability and consistent performance
• Top port acoustic configuration facilitates direct sound projection

Speakers Applications

• High power hearing aids
• Medium DCR to impedance ratio audio circuits
• Compact receiver modules requiring EF-sized form factors

Speakers Procurement Notes

Verify the specific suffix against official Knowles documentation to confirm exact acoustic and electrical tolerances. Ensure compatibility with existing hearing aid housing dimensions due to the EF-size constraint. Confirm availability status as distribution channels may vary for discontinued or specialized medical components.

Speakers Selection Notes

Select this component when a high-efficiency, compact receiver is required for hearing aid devices. The 140 Ohm impedance and 124 dBA efficiency make it suitable for applications needing strong output from limited power sources. Consider the top port orientation during PCB layout and acoustic chamber design.

Speakers Part Context

This model belongs to Knowles' TEC Balanced Armature speaker line, specifically engineered for medical audio devices. It shares physical similarities with traditional EF receivers but offers enhanced power handling capabilities through its magnetic structure and damping techniques.

Speakers Replacement Considerations

Direct substitutes are not explicitly listed in public documentation. Evaluate other Knowles EF-series receivers for dimensional compatibility. Verify that alternative components match the 140 Ohm impedance and 124 dBA efficiency specifications to maintain circuit performance.