TEC-30033-B22

Overview

The TEC-30033-B22 is a balanced armature receiver speaker manufactured by Knowles. It features a rectangular form factor with top porting and an impedance of 31 Ohms. The device delivers a sound pressure level of 107 dB. Its operational frequency range spans from 200 Hz to 6.49 kHz. This component is designed for applications requiring high efficiency and compact audio output solutions.

Feature Summary

• Balanced armature transducer technology
• Rectangular housing design
• Top port acoustic configuration

Applications

• Hearing aids
• Medical audio devices
• Compact communication equipment

Procurement Notes

Verify the specific revision status as this part may be classified as obsolete in certain distributor catalogs. Confirm mechanical dimensions and terminal compatibility with existing PCB layouts. Ensure that the 31 Ohm impedance matches the driver circuit requirements. Check for RoHS compliance documentation if required for your manufacturing standards. Validate availability through authorized channels due to potential supply chain variations for legacy components.

Selection Notes

Select this component when a high-efficiency, low-power audio solution is needed within a constrained space. The 107 dB sensitivity allows for adequate volume with minimal drive current. The 31 Ohm impedance is suitable for direct driving by standard hearing aid amplifiers. Consider the rectangular footprint for board space optimization compared to circular alternatives.

Part Context

Knowles is a leading provider of precision sensors and actuators. The TEC series represents their line of balanced armature receivers. These components are widely used in the hearing healthcare industry. The TEC-30033-B22 is part of this established family of miniature audio transducers known for reliability and performance.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.