CB-22850-139

Overview

The Knowles CB-22850-139 is a balanced armature receiver speaker designed for audio applications. It features a square form factor with dimensions of 25.15mm x 25.40mm and utilizes PC pins for mounting. The component operates within a frequency range of 300Hz to 4.5kHz and has an impedance of 48Ω. It offers a sound pressure level of 82dB and includes top porting or side porting configurations depending on the specific variant.

Feature Summary

• Balanced armature transducer technology
• Square package design with PC pin termination
• Magnetic structure integration

Applications

• Audio receivers
• Communication devices
• Portable electronics

Procurement Notes

Verify the specific port configuration (top or side) required for your enclosure design, as variants exist. Confirm RoHS compliance status with the supplier. Ensure the 48Ω impedance matches your driver circuit requirements. Check datasheet for mechanical tolerances to guarantee fit within the designated housing space.

Selection Notes

Select this component when a compact, high-fidelity balanced armature solution is needed. The 48Ω impedance suits standard audio drivers. Consider the physical dimensions of 25.15mm x 25.40mm for spatial constraints. Evaluate the 300Hz to 4.5kHz frequency response against target audio performance needs.

Part Context

This part belongs to Knowles' line of balanced armature speakers. These components are widely used in hearing aids, earpieces, and other small audio devices requiring precise sound reproduction in limited spaces. The brand is recognized for precision acoustic engineering.

Replacement Considerations

Check for direct substitutes from Knowles with similar impedance and dimensions. Verify that any replacement maintains the same balanced armature architecture and mounting style to ensure compatibility with existing PCB layouts.