PUI Audio 80 dB Flange, Flange External 4 mm Piezo Buzzer Transducer 111.5 mm 1 V Min 30V Max

This piezo buzzer transducer provides audible signalling for industrial and electronic systems, converting electrical drive signals into an 80 dB acoustic output suitable for monitoring and alerting functions. It operates across a wide temperature range and accepts low-voltage inputs, making it appropriate for use in control panels, machinery enclosures and Interface devices where a Compact acoustic indicator is required.

• High capacitance 11,000 pF for stable tonal response and consistent output
• Peak frequency 5,500 Hz for clear high-frequency alerting suitable for noisy environments
• Operates from 1V to 30V enabling compatibility with diverse control circuits
• Draws 9 mA supply current to minimise load on power supplies
• Temperature range -30 °C to 85 °C for use in variable thermal conditions
• Lead‑wire termination and flange mount for Rapid installation in assemblies

• Suitable for audible alarms in automation control cabinets
• Ideal for status indication on industrial equipment panels
• Used with low-voltage battery systems requiring acoustic feedback
• Can be used for alerting in testing rigs and production machinery
• Suitable for retrofit signalling in electrical enclosures

It provides flange mounting points so it can be fastened to panels or brackets using standard screws to maintain reliable positioning.

It is intended for external drive and performs best when supplied with a suitable drive waveform within the 1V to 30V range to achieve the rated acoustic level.

It tolerates ambient temperatures from -30 °C up to 85 °C, allowing operation in chilled, heated or industrial environments without degradation of performance.

The 11,000 pF capacitance and 9 mA current draw should be considered when designing drive circuitry and power budgets to ensure proper signal coupling and stable supply operation.