2403 263 00052

Overview

The Knowles 2403 263 00052 is a rectangular receiver speaker designed for audio output applications. It features a nominal impedance of 16 Ohms and a power handling capacity of 20 mW. The device operates within a frequency range of 300 Hz to 4 kHz and delivers a sound pressure level of 111.5 dB. Its physical dimensions are 15.00 mm in length and 6.00 mm in width, with a seated height of 2.50 mm. The unit utilizes a top port configuration for sound emission.

Feature Summary

• Rectangular form factor optimized for compact electronic assemblies
• Top port design for directed acoustic output
• High sensitivity rating for efficient audio conversion

Applications

• Portable consumer electronics requiring small form factor speakers
• Industrial communication devices needing clear voice reproduction
• Medical equipment with limited internal space constraints

Procurement Notes

Verify the exact part number string including spaces against manufacturer documentation to ensure correct identification. Confirm that the required acoustic performance metrics align with the specified 111.5 dB sensitivity and 16 Ohm impedance. Check mechanical drawings for mounting hole locations and clearance requirements relative to the 2.50 mm height specification.

Selection Notes

Select this component when a high-sensitivity, low-power receiver is needed for voice-band applications. Ensure the available PCB space accommodates the 15.00 mm x 6.00 mm footprint. Consider the top port orientation during layout planning to prevent acoustic obstruction by adjacent components or enclosure walls.

Part Context

This model belongs to the Knowles receiver speaker series, which provides specialized acoustic solutions for portable and industrial devices. The product line emphasizes reliability and consistent performance in constrained environments. These receivers are engineered for integration into systems requiring precise voice transmission and reception capabilities.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing acoustic chambers and mounting structures before considering alternative models from other manufacturers.