GD-31440-000

Speakers Overview

The Knowles GD-31440-000 is a balanced armature receiver speaker designed for compact audio applications. It features a rectangular top port configuration with side porting options. The component operates within a frequency range of 100 Hz to 6.7 kHz and has an impedance of 223 Ohms. Rated power handling is 10 mW, with an efficiency of 100 dBA. Physical dimensions are 5.99 mm in length by 3.12 mm in width. This device utilizes magnetic technology for sound transduction.

Speakers Feature Summary

• Balanced armature transducer technology for high-fidelity audio reproduction
• Compact rectangular form factor suitable for space-constrained designs
• Top rectangular port design with side porting capability
• High efficiency output rated at 100 dBA

Speakers Applications

• Hearing aids and assistive listening devices
• Wireless earbuds and in-ear monitors
• Smartwatches and wearable health trackers
• Voice-controlled IoT devices and smart speakers

Speakers Procurement Notes

Verify the specific package variant and lead time requirements directly with authorized distributors before ordering. Confirm that the 223 Ohm impedance matches your amplifier output stage to ensure optimal power transfer and signal integrity. Check RoHS compliance documentation if operating in regulated markets. Ensure storage conditions align with manufacturer guidelines to maintain acoustic performance over time.

Speakers Selection Notes

Select this model when space is limited but high efficiency is required. The 223 Ohm impedance suits high-impedance drivers or specific amplifier configurations. Consider the 100 Hz to 6.7 kHz bandwidth for voice-centric applications rather than full-range music. Evaluate the 10 mW power rating against peak audio demands to prevent distortion or damage during high-volume usage scenarios.

Speakers Part Context

This component belongs to Knowles' portfolio of miniature balanced armature receivers. These devices are engineered for personal audio electronics where size and weight are critical constraints. The GD series typically offers consistent acoustic performance across manufacturing batches, supporting reliable integration into mass-produced consumer electronic devices requiring precise audio output.

Speakers Replacement Considerations

Direct substitutes must match the 223 Ohm impedance and similar physical footprint. Verify frequency response curves to ensure comparable audio quality. Alternative models may require circuit adjustments due to differing sensitivity or power handling ratings. Consult official replacement lists from Knowles for validated cross-references.