AST-03208MR-R

Overview

The AST-03208MR-R is an electromagnetic speaker manufactured by PUI Audio, Inc. It features a 32 mm round design with a Mylar cone and Neodymium Iron Boron magnet. The unit has an impedance of 8 Ohms and a power rating of 100 mW. Key electrical parameters include a sensitivity of 82 dBA, a resonant frequency of 1.5 kHz, and a self-resonant frequency of 1.2 kHz. Physical dimensions are 30 mm x 30 mm x 12 mm with a depth of 15.1 mm. It utilizes solder pin termination for PCB mounting and operates within a temperature range of -20°C to +60°C.

Feature Summary

• Utilizes a Neodymium Iron Boron magnet for high efficiency in a compact form factor
• Features a Mylar cone diaphragm for reliable acoustic performance
• Designed for direct printed circuit board mounting via solder pins

Applications

• General purpose audio output devices
• Portable electronic equipment requiring low profile speakers
• Industrial control panels with limited space constraints

Procurement Notes

Verify the specific datasheet version when ordering, as manufacturing revisions may occur. Confirm that the solder pin termination style matches your PCB layout requirements. Ensure the operating environment stays within the specified -20°C to +60°C range to maintain performance integrity. Cross-reference the 8 Ohm impedance with your amplifier output capabilities to prevent mismatch issues during system integration.

Selection Notes

Select this component when a 32 mm diameter speaker is required for PCB-mounted applications. It is suitable for designs needing 82 dBA sensitivity at 100 mW input. Consider the 12 mm height constraint against available enclosure depth. The 8 Ohm impedance aligns with standard low-voltage audio circuits. Evaluate the Mylar cone material properties against environmental exposure requirements.

Part Context

This part belongs to the PUI Audio electromagnetic speaker category. It is distinct from receiver models like the AR series due to its higher power handling and broader frequency response. Unlike the AS series, it uses a deeper housing structure. The AST designation indicates a specific form factor optimized for general-purpose sound reproduction rather than voice-only transmission.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.