EF-23187-000

Speakers Overview

The EF-23187-000 is a receiver transducer manufactured by Knowles, designed for audio applications. It features dimensions of 7.87 mm in length, 5.59 mm in width, and 4.01 mm in depth. The device operates with an impedance of 1.4 kOhms and provides a sensitivity of 126 dB. It incorporates a two-port design to enhance acoustic performance.

Speakers Feature Summary

• Two-port architecture for improved acoustic efficiency
• High sensitivity output for clear audio reproduction
• Compact rectangular form factor suitable for space-constrained designs

Speakers Applications

• Mobile communication devices
• Portable audio equipment
• Hands-free speakerphone systems

Speakers Procurement Notes

Verify the specific revision level and packaging configuration directly with Knowles or authorized distributors before ordering. Ensure that the mechanical footprint matches the target PCB layout, particularly regarding the 7.87 x 5.59 mm dimensions. Confirm RoHS compliance status if required by your manufacturing standards.

Speakers Selection Notes

Select this component when high sensitivity and low impedance are required for efficient sound pressure generation. The 1.4 kOhm impedance allows for direct driving from standard audio amplifiers without excessive current draw. Consider the 4.01 mm height constraint during enclosure design to ensure proper fit within the device chassis.

Speakers Part Context

This part belongs to Knowles' portfolio of miniature receivers and transducers. These components are engineered for integration into compact electronic devices where size and weight are critical factors. The product line emphasizes reliability and consistent acoustic performance across various operating conditions.

Speakers Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Consult Knowles engineering support for potential alternatives if this specific model is discontinued or unavailable.