BTD44-12-03H20.1

Overview

The BTD44-12-03H20.1 is a general-purpose magnetic speaker manufactured by BeStar Technologies, Inc. It features a round shape with a diameter of 44mm and a seated height of 20.1mm. The component has an AC impedance of 3 Ohms at 1kHz and a rated input power of 10W. Its frequency response ranges from 0Hz to 20kHz, with a resonant frequency of 250Hz ±20%. The port location is on the top surface.

Feature Summary

• Top-port configuration for directional sound projection
• Magnetic transduction technology for audio output
• Round physical form factor suitable for compact enclosures

Applications

• General purpose audio indication
• Alarm systems
• Indicator devices

Procurement Notes

Verify the specific suffix (e.g., LF) against the datasheet to ensure compliance with material restrictions. Confirm that the 3-ohm impedance matches the amplifier output requirements. Check the operating temperature range of -30°C to +75°C against environmental conditions. Ensure the 10W rated power is sufficient for the intended signal levels without distortion.

Selection Notes

Select this model when a low-cost, general-purpose acoustic solution is required. The 3-ohm impedance requires matching with compatible driver circuits. The 44mm diameter allows for moderate sound pressure levels in small spaces. Consider the top-port design if directivity is necessary for the application layout.

Part Context

This component belongs to the BTD series of speakers from BeStar Technologies. The series includes various sizes and impedances. The BTD44 variant specifically utilizes a 44mm diaphragm size. BeStar specializes in acoustic and haptic components, offering custom solutions for complex problems.

Replacement Considerations

Check for exact dimensional compatibility (44mm x 20.1mm). Verify impedance match (3 Ohms) to prevent amplifier damage. Ensure power handling (10W) meets or exceeds original requirements. Confirm resonant frequency characteristics do not alter desired audio performance.