EF-21943-033

Speakers Overview

The Knowles EF-21943-033 is a general-purpose speaker featuring a side rectangular form factor. It operates within a frequency range of 200 Hz to 6.3 kHz. The component exhibits an impedance of 630 Ohms according to primary distributor specifications, while alternative sources cite an impedance of 92.5 Ohms with a port located on the end.

Speakers Feature Summary

• Rectangular side-mount design for compact integration
• General-purpose audio output capability
• End-port configuration variant available

Speakers Applications

• General purpose audio devices
• Industrial automation equipment
• Mechanical engineering systems

Speakers Procurement Notes

Verify specific impedance requirements (630 Ohms vs 92.5 Ohms) against circuit design before procurement. Confirm physical mounting orientation and port location details. Ensure compatibility with driving electronics given the specified frequency response range. Cross-reference datasheet revisions for mechanical dimensions.

Speakers Selection Notes

Select this component for applications requiring a rectangular speaker profile. Consider the wide frequency range suitability for voice or general tone reproduction. Evaluate impedance matching between the driver and amplifier stage. Verify spatial constraints for side-mount installation in the target enclosure.

Speakers Part Context

This part belongs to the Knowles speaker portfolio, categorized under general-purpose audio transducers. It serves as a replacement or primary component in various electronic assemblies requiring reliable sound output. The product line supports diverse industrial and commercial applications.

Speakers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify mechanical footprint and electrical parameters when sourcing alternatives from other manufacturers.