SM250508-2

Overview

The SM250508-2 is a dynamic speaker manufactured by DB Unlimited, designed for compact audio applications. It features a round shape with a diameter of 25 mm and a height of 8 mm. The unit operates at an impedance of 8 Ohms and has a power rating of 1 Watt. It delivers a sound pressure level of 97 dBA at a resonant frequency of 500 Hz. The diaphragm is constructed from Mylar material, and it utilizes solder pad termination for electrical connection. The component supports flush mounting and functions within a temperature range of -30°C to +60°C.

Feature Summary

• Compact round dynamic transducer design suitable for space-constrained enclosures
• Mylar cone construction providing balanced acoustic performance
• Solder pad termination for direct printed circuit board integration
• Flush mount installation style for low-profile assembly

Applications

• Portable consumer electronics requiring small form factor speakers
• Industrial control panels and instrumentation audio indicators
• Medical device alarm systems and user interface feedback
• Security and access control system audio output modules

Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with the manufacturer or authorized distributor before finalizing procurement. Confirm that the solder pad termination method aligns with your assembly process capabilities. Ensure the operating temperature range meets your environmental requirements. Cross-reference the part number to avoid confusion with similar series models like SM250508-1 which may have different electrical characteristics.

Selection Notes

Select this component when a round, low-profile dynamic speaker is required for PCB-mounted applications. The 8 Ohm impedance matches standard amplifier outputs commonly found in portable devices. Consider the 1W power handling capability against your signal drive levels. The flush mount style simplifies mechanical integration compared to frame-mounted alternatives. Evaluate the 97 dBA sensitivity to ensure adequate volume for the intended enclosure size.

Part Context

This model belongs to the SM series of dynamic speakers from DB Unlimited, which focuses on miniature audio solutions. The series typically includes various shapes and sizes optimized for embedded applications. DB Unlimited specializes in custom and standard audio components for medical, industrial, and consumer markets. This specific part represents a balance between size, output, and ease of integration for mass-produced electronic goods.

Replacement Considerations

Check for direct substitutes within the same SM series, such as SM250508-1, noting potential differences in impedance or power rating. Verify dimensional compatibility if replacing in an existing housing. Ensure the replacement maintains the same solder pad configuration to avoid retooling.