Looking for a small and versatile sounder? These high-quality piezo buzzers from the RS PRO series combine a broad voltage range with low power consumption and a clear sound, all in a space-saving design.

They draw a 5 mA supply current and can function between 5 V AC to 25 V AC. This means they use less energy and are compatible with most consumer goods. They emit a 75 dB square-wave tone that's rich and clearly audible. The units themselves are ultra-compact, measuring just 10 mm in diameter – around half the size of a five pence coin. As these buzzers are surface-mounted, installation is straightforward.

Our piezo buzzer components meet ANSI/ESD S20.20:2014 and BS EN 61340-5-1:2007 standards, meaning they've been shielded from damaging electrostatic discharges. You'll find them used in everything from computers to alarm clocks.

• Surface mounting
• Supply voltage range of 5 V AC to 25 V AC
• 75 dB sound level
• External drive
• Diameter of 10 mm
• Height of 3.1 mm
• Operating temperature range of -20°C to +70°C
• Supply current of 5 mA
• Maximum frequency of 5.2 kHz

RS PRO is our own brand range and brings you a wide range of high-quality, great value products offering you more choice. Trusted by engineers all over the world, every part of every RS PRO product has been rigorously tested against demanding industry standards