BC20SC15-04

Overview

The BC20SC15-04 is a dynamic speaker driver manufactured by Peerless by Tymphany. It features a 20mm (0.79-inch) diameter diaphragm and a 15mm voice coil. The unit operates with a nominal impedance of 4 ohms and has a rated power handling capacity of 1 watt. Its frequency response range extends from 300 Hz to 8 kHz, with a resonant frequency (Fs) of approximately 600 Hz. The sensitivity is rated at 88 dB SPL (1W/1m), and the maximum excursion (Xmax) is 0.5 mm. The overall dimensions include a mounting hole diameter of 18.5 mm.

Feature Summary

• Compact form factor designed for space-constrained audio applications
• Robust construction suitable for portable electronic devices
• Optimized frequency response for clear mid-range reproduction

Applications

• Portable consumer electronics
• Toy audio modules
• Small intercom systems

Procurement Notes

Verify the specific datasheet version against the manufacturer's official documentation to ensure compliance with current environmental standards and material specifications. Confirm that the mechanical mounting dimensions align precisely with the target enclosure design before finalizing procurement orders.

Selection Notes

Select this component when a small footprint is required alongside moderate sound pressure levels. Ensure the driving circuit can handle the 4-ohm impedance load effectively. Consider thermal management if continuous operation near the 1-watt rating is anticipated in enclosed spaces.

Part Context

This model belongs to the Peerless by Tymphany lineup of miniature dynamic drivers. These components are engineered for high-volume manufacturing and consistent acoustic performance across various consumer goods. The series emphasizes reliability and cost-effectiveness for mass-market audio solutions.

Replacement Considerations

Consult official cross-reference lists for direct equivalents. Verify that any substitute maintains identical mounting hole patterns and magnetic structure dimensions to avoid mechanical modification.