AS02804PR-N50-R

Overview

The AS02804PR-N50-R is a general-purpose electromagnetic speaker manufactured by PUI Audio, Inc. It features a round shape with a paper cone and foam surround. The unit operates with an impedance of 4 Ohms and a self-resonant frequency of 350 Hz. It delivers an efficiency of 76.5 dBA and has a maximum power rating of 4W. The physical dimensions include a diameter of 28 mm and an external depth of 7.5 mm (0.3 inches). Termination is achieved via solder pads for board mounting.

Feature Summary

• Utilizes N50 neodymium magnet material for high performance in a compact form factor
• Features a paper cone and foam surround construction
• Designed for bare board mounting applications

Applications

• General-purpose audio output devices
• Compact electronic enclosures requiring low-profile speakers
• Consumer electronics with limited spatial constraints

Procurement Notes

Verify the specific datasheet version to confirm compliance requirements such as RoHS status. Ensure that the solder pad termination method aligns with your PCB assembly process capabilities. Confirm that the 4-ohm impedance matches your amplifier or driver circuit specifications to prevent mismatch issues. Check for any humidity sensitivity classifications if storage conditions are critical.

Selection Notes

Select this component when a small footprint is required alongside moderate acoustic output. The 28mm diameter fits tight spaces where larger speakers cannot be accommodated. The 4-ohm impedance is suitable for standard low-voltage audio drivers. Consider the 7.5mm depth constraint during mechanical design integration to ensure proper clearance within the housing.

Part Context

This model belongs to the N50 Mini Speaker series from PUI Audio, Inc., which focuses on compact electromagnetic transducers. The series utilizes N50 grade neodymium magnets to maximize sound pressure levels within minimal volume constraints. These components are engineered for integration into portable and space-constrained electronic devices requiring reliable audio feedback.

Replacement Considerations

Direct substitutes must match the 28mm diameter, 4-ohm impedance, and 7.5mm height. Verify that alternative models maintain similar efficiency ratings around 76 dBA. Ensure the replacement uses solder pad terminations compatible with existing PCB layouts. Cross-reference mechanical drawings to confirm hole patterns and mounting clearances.