SOD02902Y50L

Overview

The SOD02902Y50L is a general-purpose dynamic speaker manufactured by Seltech. It features a 34mm round form factor with a total height of 4.1mm. The unit has a nominal impedance of 50 Ohms and a rated power handling capacity of 300 mW (0.3 W). Its frequency response spans from 200 Hz to 17 kHz, with a resonant frequency (F0) of 450 Hz. Designed for top-mount installation, this component provides acoustic output suitable for compact electronic devices requiring clear voice reproduction.

Feature Summary

• Compact 34mm round design with low profile dimensions
• High impedance configuration at 50 Ohms
• Optimized for voice clarity in arm's-length applications

Applications

• Arm's-length audio devices
• General purpose consumer electronics
• Voice communication modules

Procurement Notes

Verify the specific suffix requirements when ordering, as variations such as SOD02902Y50LCBT may exist within the product line. Confirm that the 50-ohm impedance matches your circuit design, as standard speakers often use 8 ohms. Ensure the mounting method aligns with the top-round specification. Check for any specific packaging or reel requirements if integrating into automated assembly processes. Validate the rated power against your system's maximum output to prevent damage.

Selection Notes

Select this model when a higher impedance than the common 8-ohm standard is required for specific amplifier matching or voltage drive applications. The 34mm diameter offers a balance between acoustic volume and space constraints in small enclosures. Consider the 500 Hz resonant frequency if bass response is critical, though this unit is optimized for mid-range voice frequencies. Evaluate the 300 mW power rating against the intended listening distance and ambient noise levels to ensure adequate signal-to-noise ratio.

Part Context

This component belongs to Seltech's lineup of electro-mechanical acoustic solutions. Seltech specializes in sensors, speakers, and receivers for various industrial and consumer markets. The SOD series typically denotes their dynamic speaker offerings designed for integration into PCB-based systems. This specific part represents a standard off-the-shelf solution rather than a custom-engineered acoustic transducer.

Replacement Considerations

Direct substitutes must match the 50-ohm impedance and 34mm diameter. Generic 8-ohm replacements will alter gain and current draw significantly. Verify mechanical compatibility with the 4.1mm height constraint. No official cross-reference list is publicly available; engineering validation is required for any alternative sourcing.