1891

Overview

The Adafruit Industries LLC model 1891 is a general-purpose thin plastic speaker designed for audio output applications. It features an 8-ohm impedance and a power handling capacity of 250 mW. The device operates within a frequency range of 440 Hz to 20 kHz, with a self-resonant frequency of 440 Hz. It utilizes a round or square frame configuration and includes attached wires for connection.

Feature Summary

• Thin plastic construction for compact integration
• Integrated wire leads for simplified connectivity
• General-purpose audio reproduction capability

Applications

• Embedded audio output in small electronic devices
• Prototype development and educational kits
• Low-power consumer electronics projects

Procurement Notes

Verify the specific frame shape (round or square) required for your enclosure design, as product listings may vary. Confirm that the 250 mW power rating aligns with your amplifier's output capabilities to prevent damage. Ensure the attached wire length meets your circuit layout requirements before finalizing procurement.

Selection Notes

Select this component when a low-cost, lightweight speaker solution is needed for low-volume sound generation. It is suitable for battery-operated devices due to its moderate impedance. Consider the physical dimensions of the round or square frame to ensure compatibility with the target housing constraints.

Part Context

This part belongs to Adafruit's line of basic electronic components aimed at makers and hobbyists. It serves as a simple audio transducer for microcontroller-based projects where complex audio processing is not required. The component is typically used in conjunction with logic-level drivers or dedicated audio amplifiers.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Users should verify impedance and power ratings when sourcing alternatives from other manufacturers.