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

This piezo buzzer transducer provides an audible signalling solution for low-voltage systems, converting electrical drive into a clear high-frequency tone for alert and notification functions. It is designed as a Compact surface-mount component suitable for integration where space is constrained and a distinct sound output is required.

• Operates from 2 to 4V enabling low-voltage circuit integration
• Emits 78dBA sound level offering perceptible alerts in noisy environments
• Frequency range 3500 to 4500Hz producing high-pitched, attention-grabbing tones
• Surface-mount package for automated PCB assembly and reduced manual work
• Maximum operating temperature 70°C permitting use in warmed enclosures

• Suitable for industrial control panels requiring audible alarms
• Ideal for handheld instrumentation with low supply voltages
• Used for safety annunciation in automation systems
• Can be used for status indication in Compact electronic assemblies

An external drive signal is needed, the component functions as a driven piezo transducer rather than an internally oscillating sounder.

The transducer occupies a 5x5mm footprint and has a low profile of 2mm suitable for tight component envelopes.

The device tolerates temperatures up to 70°C, so it should not be used in applications exceeding that thermal boundary.

It complies with REACH and RoHS requirements, indicating restricted-substance standards have been observed.