PUI Audio 78 dBA Surface External Piezo Buzzer Transducer 3 mm 2 V Min 5 mm 5mm 4V Max

This piezo buzzer transducer is a Compact acoustic device designed to provide audible alerts in low-voltage electronic assemblies. It operates as an externally driven sounder suited to surface-mount integration, delivering a clear tone for signalling duties within control panels, instruments and Compact equipment in automation and electrical systems.

• Operates between 2V and 4V supporting low-voltage designs
• Emits 78dBA to ensure discernible alerts in noisy environments
• Frequency range 3500 to 4500Hz for attention-grabbing tones
• Surface-mount format for automated PCB assembly
• Maximum operating temperature 70°C enabling warmer conditions

• Suitable for alarm signalling in industrial controllers
• Ideal for status indication on handheld test instruments
• Used with access control panels for audible feedback
• Can be used for user alerts in small machinery consoles

It fits as an SMD component for placement and reflow soldering on a printed circuit board.

The package measures 5x5mm footprint and a 3mm profile suitable for dense board populations.

It conforms to both RoHS and REACH substance restriction standards.

Design the driver to supply a stable external drive within the 2 to 4V window and within the stated frequency limits for consistent sound output.