SR-32453-000

Overview

The Knowles SR-32453-000 is a balanced armature receiver with a magnetic construction type. It features a round top port design and operates within a frequency range of 20 Hz to 8.8 kHz. The component has an impedance of 46 Ohms and a diameter of 6.4 mm. Its height is specified as 4 mm, and it offers an efficiency of 105 dBA. This driver is designed for compact audio applications requiring high output in small form factors.

Feature Summary

• Balanced armature technology for efficient sound reproduction
• Top port configuration for directed acoustic output
• Compact round physical profile suitable for space-constrained designs

Applications

• Hearing aids
• Bone conduction devices
• Medical diagnostic equipment

Procurement Notes

Verify the specific datasheet version from Knowles Electronics to ensure compliance with current manufacturing standards. Confirm that the 46 Ohm impedance matches your circuit requirements. Check package handling instructions, as components are typically supplied in trays. Ensure storage conditions align with moisture sensitivity level specifications to maintain component integrity before assembly.

Selection Notes

Select this component when a high-efficiency, low-profile balanced armature driver is required. The 46 Ohm impedance suits specific amplifier outputs. Consider the 20 Hz to 8.8 kHz frequency response for speech-centric or mid-range audio needs. The 6.4 mm diameter allows integration into tight enclosures where standard speakers cannot fit.

Part Context

This part belongs to the SR series of balanced armature drivers by Knowles. These components are engineered for high reliability in medical and consumer electronics. The SR-32453-000 specifically targets applications demanding precise acoustic performance in miniature packages, distinguishing it from larger dynamic drivers.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with existing acoustic chambers and mounting structures if considering alternative models from other manufacturers.