CDS-4051-16-SP

Overview

The CDS-4051-16-SP is a general-purpose miniature speaker manufactured by Same Sky. It features a 40 mm round frame with a depth of 5.1 mm and utilizes a neodymium magnet paired with a PET cone. The unit has an impedance of 16 Ohms, a rated power of 1 W, and a maximum power handling of 3 W. Its frequency response spans from 480 Hz to 6 kHz, with a self-resonant frequency of approximately 700 Hz. The acoustic output is rated at 82 dBA SPL when driven by 1 W at 1 meter. Electrical connections are provided via solder pads.

Feature Summary

• Compact rectangular design optimized for space-constrained enclosures
• High magnetic flux density achieved through neodymium iron boron construction
• Durable polyethylene terephthalate diaphragm material
• Top-port configuration for direct sound projection

Applications

• Portable consumer electronics audio output
• Medical device alarm systems
• Industrial control panel indicators
• Smart home automation devices

Procurement Notes

Verify the specific suffix designation to confirm impedance and physical dimensions match project requirements. Confirm RoHS compliance status and packaging quantity details directly with the manufacturer or authorized distributors prior to ordering. Ensure enclosure design accommodates the specified mounting hole pattern and depth constraints for proper acoustic performance.

Selection Notes

Select this component when a low-profile, high-efficiency audio solution is required for battery-operated devices. The 16 Ohm impedance suits amplifier outputs designed for higher impedance loads compared to standard 4 Ohm speakers. Consider the 1 W power rating against expected volume levels to prevent thermal damage. Evaluate the 480 Hz lower frequency limit to ensure it meets the specific tonal requirements of the application.

Part Context

This model belongs to the CDS series of miniature speakers from Same Sky. The series offers various frame sizes and impedance options to accommodate different acoustic and electrical design needs. The CDS-4051-16-SP specifically addresses applications requiring a balance between compact form factor and adequate sound pressure levels.

Replacement Considerations

Direct substitutes may include other 16 Ohm, 40 mm round speakers from the same manufacturer series. Verify that alternative parts match the 5.1 mm depth and 1 W power rating. Check compatibility with existing PCB footprints if surface mount alternatives are considered.