PUI Audio 3 W Miniature Speaker 28 mm Dia. 16.5 mm

This miniature speaker provides Compact audio output for electronic and automation projects, converting electrical signals into audible sound in confined installations. Designed for integration into small devices, it delivers clear acoustic performance across a broad frequency range while remaining suitable for industrial and commercial systems.

• 4Ω impedance for easy matching with low-voltage amplifiers
• 3W rated power allowing for consistent low-power audio output
• 88dBA sensitivity for noticeable sound at moderate drive levels
• Mylar cone offering stable acoustic response over time
• 20kHz frequency upper limit ensuring full-range treble reproduction

• Suitable for alarms and alerting modules in automation systems
• Ideal for control panels requiring Compact audio feedback
• Used with portable diagnostic tools for audible indications
• Can be used for voice prompts in handheld instrumentation

Operate at or below the 3W rating and maintain appropriate drive levels to prevent thermal stress in the voice coil.

Secure seating against a rigid surface reduces panel resonance, use compliant gasketing where vibration isolation is required.

The Mylar diaphragm resists moisture-related deformation better than paper cones, preserving frequency response in variable conditions.

Pairing with drivers specified for 4Ω loads prevents power transfer losses and keeps SPL stable across expected operating voltages.