SM280508-2

Overview

The SM280508-2 is a round dynamic micro speaker manufactured by DB Unlimited. It features an 8 Ohm impedance and a resonant frequency of 550 Hz. The device delivers a sound pressure level of 92 dBA at 10 cm. Its nominal power rating is 1.5 W, with a frequency range spanning from 550 Hz to 9,000 Hz. The unit measures 28 mm in diameter and 5 mm in height, utilizing solder pad termination for flush mounting.

Feature Summary

• Round dynamic construction designed for compact audio applications
• Flush mount installation style suitable for embedded designs
• Solder pad termination for direct circuit board integration

Applications

• General purpose audio indication
• Embedded transducer systems
• Compact consumer electronic devices

Procurement Notes

Verify the specific datasheet revision when sourcing this component. Confirm that the 1.5 W power rating aligns with your thermal management requirements. Ensure the 8 Ohm impedance matches your amplifier output specifications. Check for any RoHS compliance documentation updates prior to final procurement approval.

Selection Notes

Select this model if a 28 mm diameter form factor is required. The 550 Hz resonant frequency suits low-frequency emphasis tasks. Consider the 92 dBA efficiency for volume needs. The flush mount design aids in space-constrained enclosures compared to protruding alternatives.

Part Context

This component belongs to the SM series of dynamic speakers from DB Unlimited. The series focuses on providing versatile audio solutions for various engineering challenges. These units are characterized by their compact dimensions and robust performance in general-purpose audio roles.

Replacement Considerations

The SM280508-1 is a related variant within the same product family. Verify dimensional compatibility and electrical differences before substitution. The SM280508-2 offers distinct power and frequency characteristics compared to other series members.