EF-21763-000

Speakers Overview

The Knowles EF-21763-000 is an electromagnetic receiver speaker designed for compact audio output applications. It features a rectangular form factor with dimensions of 7.87 mm in length, 5.59 mm in width, and 4.01 mm in depth. The component operates within a frequency range of 200 Hz to 6.3 kHz and has a nominal impedance of 1.275 kOhms. It utilizes a top port configuration for sound emission.

Speakers Feature Summary

• Electromagnetic transduction technology for reliable audio reproduction
• Rectangular housing design optimized for space-constrained enclosures
• Top-port acoustic configuration for directed sound projection

Speakers Applications

• Portable electronic devices requiring compact audio output
• Industrial control panels with limited internal volume
• Medical equipment needing small-form-factor speakers

Speakers Procurement Notes

Verify the specific datasheet version for the EF-21763-000 to confirm mechanical tolerances and acoustic performance curves. Ensure compatibility with driving circuits given the 1.275 kOhm impedance. Check for any recent discontinuance notifications from Knowles before finalizing procurement plans.

Speakers Selection Notes

Select this component when a high-impedance, small-footprint electromagnetic speaker is required. The 1.275 kOhm impedance may necessitate specific amplifier matching compared to standard low-impedance speakers. Consider the top-port orientation during PCB layout and enclosure design to ensure unobstructed sound path.

Speakers Part Context

This part belongs to the Knowles EF series of electromagnetic speakers. These components are generally used as receivers or alert tones in various consumer and industrial electronics. The series offers various impedance and size options to suit different design constraints.

Speakers Replacement Considerations

Consult official Knowles documentation for direct substitutes. Similar rectangular electromagnetic speakers with comparable impedance and frequency response should be evaluated for mechanical fit and acoustic performance equivalence.