TWFK-31129-000

Overview

TWFK-31129-000 is a balanced armature receiver speaker manufactured by Knowles. It features a rectangular top design with dimensions of 5.15mm, optimized for compact audio applications. The component operates within a frequency response range of 200 Hz to 6.5 kHz and has an impedance of approximately 29.3 Ohms. Designed for high efficiency and stability, it utilizes Knowles' magnetic technology to ensure reliability in space-constrained environments.

Feature Summary

• Enables high-fidelity sound reproduction in space-constrained hearing aids
• Reduces distortion and feedback for clearer audio experiences
• Supports a wide range of medical and consumer audio applications

Applications

• Hearing aids
• Medical audio devices
• Compact consumer electronics

Procurement Notes

Verify the specific revision code and RoHS compliance status directly with the manufacturer or authorized distributors before procurement. Ensure that the rectangular form factor and terminal configuration match the target PCB layout requirements. Confirm that the acoustic performance specifications align with the intended application's sensitivity and impedance constraints.

Selection Notes

Select this component when a compact, high-efficiency receiver is required for hearing aid or similar medical devices. The 5.15mm size allows for integration into tight spaces while maintaining audio clarity. Consider the 29.3 Ohm impedance for driver matching and the 200 Hz to 6.5 kHz frequency range for appropriate voice band coverage.

Part Context

Knowles is a global provider of high-performance electronic components, specializing in capacitors, RF filtering products, and advanced micro-acoustic solutions. The TWFK series represents their balanced armature technology, designed for demanding applications in medtech and industrial markets where reliability and miniaturization are critical.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Knowles technical support for direct replacements or equivalent models with compatible acoustic and electrical characteristics.