CI-22762-000

Overview

The Knowles CI-22762-000 is a balanced armature receiver designed for high-fidelity audio applications. It features a frequency response range of 200 Hz to 5.5 kHz and an impedance of 120 Ohms. The component delivers a sound pressure level of 128 dBA, with specific datasheet references noting a peak sensitivity of 131.5 dB. It utilizes a top port configuration with a rectangular form factor, measuring 9.47 mm in length. The device employs solder pad termination for board mounting, ensuring secure integration into compact electronic assemblies requiring precise acoustic output.

Feature Summary

• Balanced armature transducer architecture optimized for clarity
• Top port design facilitating directed acoustic output
• High sound pressure capability for efficient volume generation
• Rectangular surface mount package for space-constrained layouts

Applications

• Space-constrained hearing aids
• High-fidelity audio reproduction systems
• Compact consumer electronics requiring clear audio

Procurement Notes

Verify the specific revision of the datasheet against the manufacturer's official documentation before finalizing specifications. Ensure that the 120 Ohm impedance and 128 dBA SPL ratings match the exact batch requirements for your design. Confirm that the top port orientation aligns with your enclosure acoustics. Cross-reference the terminal style as solder pads to ensure compatibility with your assembly process. Always validate compliance with relevant environmental standards required for your target market.

Selection Notes

Select this component when a balanced armature topology is required for superior transient response and low distortion compared to dynamic drivers. The 120 Ohm impedance suits driving circuits designed for higher impedance loads. Consider the 9.47 mm length constraint to ensure mechanical fit within the device housing. The top port configuration dictates the acoustic path direction relative to the user or microphone placement.

Part Context

This receiver belongs to Knowles' portfolio of precision audio components, specifically engineered for medical and high-end audio devices. It represents a specialized solution for applications where size, weight, and acoustic performance are critical constraints. The product line emphasizes reliability and consistent manufacturing tolerances for mass production environments.

Replacement Considerations

Direct substitutes must match the 120 Ohm impedance, balanced armature type, and similar physical dimensions. Verify that any alternative maintains the 200 Hz to 5.5 kHz frequency response profile. Check for equivalent sound pressure levels to ensure no loss in volume performance. Confirm that the top port and solder pad termination styles are compatible with existing PCB footprints.