CMS-1638-058S

Speakers Overview

The CMS-1638-058S is a round, top-port miniature speaker manufactured by Same Sky. It features an 8 Ohm impedance and a nominal power rating of 500 mW. The unit utilizes a Polyphenylene Sulfide (PPS) cone and Neodymium Iron Boron magnet. Its frequency response ranges from 720 Hz to 20 kHz with a self-resonant frequency of approximately 900 Hz. The speaker measures 16 mm in diameter with a depth of 3.85 mm and employs spring contacts for termination.

Speakers Feature Summary

• Top-port acoustic design optimized for compact enclosures
• Polyphenylene Sulfide (PPS) cone material for durability
• Spring contact termination for simplified assembly

Speakers Applications

• Portable electronic devices requiring small form factor audio output
• Consumer electronics with limited internal space constraints
• Miniature alarm or notification systems

Speakers Procurement Notes

Verify the specific termination type against your PCB layout requirements, as this model uses spring contacts rather than standard solder pads or wire leads. Confirm that the enclosure design accommodates the top-port configuration to ensure proper sound projection. Check current availability status directly with the manufacturer or authorized distributors, as component stock levels fluctuate.

Speakers Selection Notes

Select this component when a low-profile, round speaker is required for high-frequency reproduction up to 20 kHz. The 8 Ohm impedance suits standard audio driver circuits. Ensure the application environment does not exceed the thermal limits of the PPS cone material. Consider the spring contact interface if through-hole or specific mounting mechanisms are preferred over direct soldering.

Speakers Part Context

This part belongs to the Same Sky miniature speaker series, designed for integration into space-constrained portable devices. It represents a balance between acoustic performance and physical dimensions, utilizing modern magnetic materials to maximize output within a minimal footprint compared to larger transducer alternatives.

Speakers Replacement Considerations

No officially confirmed substitute part numbers are documented in the provided source material.