The ChinaSound CPB31A12-4.0-C32W150R piezo buzzer is a reliable and efficient solution for generating audible alerts and tones. Its compact size (31mm diameter, 12mm height) makes it suitable for integration into space-constrained devices. Operating at a rated voltage of 4.0V, this buzzer features a 32Ω coil resistance and a rated current of 150mA. It produces a clear and distinct sound output of 85dB, ensuring effective signaling. This piezo buzzer is commonly used in applications such as alarms, timers, and electronic toys. Supreme Components International is an authorized distributor of ChinaSound components, guaranteeing the authenticity and quality of this product. Consider this buzzer for your next project requiring a reliable audio indicator.