2403 260 00057

Overview

The Knowles 2403 260 00057 is a rectangular speaker from the Dumbo series, featuring an 8-ohm impedance and a top port configuration. It delivers a sound pressure level of 73 dB with a power rating of 700 mW and a maximum power handling of 1 W. The frequency response spans from 300 Hz to 20 kHz, with a self-resonant frequency of 650 Hz. Measuring 18.00 mm in length, 13.00 mm in width, and 4.60 mm in height, it utilizes a silicone cone and Nd-Fe-B magnet.

Feature Summary

• Rectangular enclosure design utilizing a silicone cone for durability
• Top port acoustic configuration for directional sound projection
• Construction incorporating Neodymium Iron Boron (Nd-Fe-B) magnetic materials

Applications

• General purpose audio output devices
• Compact electronic enclosures requiring small form factor speakers
• Applications necessitating top-port acoustic alignment

Procurement Notes

Verify component status as this specific part number is documented as discontinued or end-of-life. Confirm availability through authorized distributors or secondary markets. Ensure replacement strategies account for potential obsolescence by identifying current equivalent models within the manufacturer's active portfolio before finalizing procurement plans.

Selection Notes

Select this component when a compact rectangular speaker with a top port is required. Verify that the 8-ohm impedance matches the system amplifier output. Consider the 700 mW power rating against the application's volume requirements. Note that the unit is currently listed as discontinued, which may impact long-term supply chain stability.

Part Context

This model belongs to the Knowles Dumbo series, characterized by its small rectangular footprint and integrated mounting features. The series typically employs spring-type terminals for simplified integration into various electronic assemblies. It represents a standard solution for low-power audio applications where space constraints are significant.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation due to the product's discontinued status.