EH-23149-000

Speakers Overview

The Knowles EH-23149-000 is an electromagnetic speaker transducer designed for board mount applications. It features a top port location and operates within a frequency range of 200 Hz to 5.5 kHz. The component exhibits an impedance of 165 Ohms and delivers a sound pressure level of 103 dBA at its rated sensitivity. Physical dimensions include a length of approximately 5.18 mm, with a height of 3.05 mm and width of 3.55 mm. This device is RoHS compliant and suitable for compact acoustic output requirements.

Speakers Feature Summary

• Electromagnetic transduction mechanism for audio output
• Top port configuration for directed sound projection
• Board mount design for integrated circuit assembly

Speakers Applications

• Compact consumer electronic devices requiring small form factor speakers
• Industrial control panels needing audible feedback signals
• Medical equipment with limited internal space for acoustic components

Speakers Procurement Notes

Verify the specific impedance value (165 Ohms) against your circuit design requirements, as some sources cite 185 Ohms. Confirm the physical footprint matches your PCB layout, noting the 5.18 mm length and 3.05 mm height. Ensure the top port orientation aligns with your enclosure's acoustic path. Check for RoHS compliance documentation if required by your manufacturing standards.

Speakers Selection Notes

Select this component when a small, high-efficiency electromagnetic speaker is needed for frequencies up to 5.5 kHz. The 103 dBA sensitivity provides adequate volume for many portable applications. Consider the 165 Ohm impedance for driver compatibility. The board mount style simplifies assembly compared to wire-wrapped alternatives. Evaluate the top port directionality against your product's acoustic needs.

Speakers Part Context

This part belongs to Knowles' EH series of electromagnetic speakers, known for their compact size and reliability in various electronic assemblies. The series offers multiple variants with different impedances and sensitivities. The EH-23149-000 specifically targets applications requiring a balance between size constraints and sufficient acoustic output power.

Speakers Replacement Considerations

Check for other EH series parts with similar dimensions but different impedance values if matching the exact 165 Ohm specification is difficult. Verify that any substitute maintains the same top port orientation and board mount style to ensure mechanical compatibility.