RS PRO Piezo Buzzer Component Through Hole, Continuous Tone, Internal Drive, 95dB, 9.5mm Height, 3 - 30V DC 457-055

RS PRO 457-055 Piezo Buzzer Component is a high-performance electronic sounder designed for PCB mounting in alarm, signaling, and status indication systems. Built with a robust piezoelectric element, this buzzer delivers a continuous tone output at a sound level of 95dB, ensuring clear, dependable audible alerts in noisy environments. Its internal drive design allows for efficient operation without the need for external oscillators or drivers.

The device supports through-hole mounting, making it well-suited for integration in a wide variety of circuit boards. It features a versatile supply voltage range from 3V DC up to 30V DC, enabling compatibility with multiple power sources and project requirements. The compact round housing measures 23.5mm in diameter, with both height and depth at 9.5mm, saving space while retaining strong acoustic performance.

Termination is accomplished via PCB pin style, allowing secure, straightforward installation and reliable electrical connections. The buzzer operates within a substantial temperature range from −20°C to 70°C, making it suitable for demanding industrial, laboratory, and commercial environments. Its maximum frequency output of 3.9kHz and minimum 2900Hz ensures sharp, distinct tone for alerting purposes. With a maximum supply current of 30mA, it is energy-efficient and ideal for low-power electronics.

Main applications include use in control panels, process equipment, alarm circuits, measurement systems, and various electronic assemblies requiring continuous status or warning indication. The continuous tone output is appropriate for emergency signals, machinery notifications, and other industrial sound alert requirements.

The RS PRO 457-055 Piezo Buzzer combines compact size, robust construction, and high acoustic performance, ensuring lasting reliability in a wide range of electronic and industrial applications. Users seeking dependable signaling for PCB-based designs will find this component suitable for both new builds and replacements in existing systems.

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