Mounting Type Through Hole Minimum Supply Voltage 2V dc Maximum Supply Voltage 5V dc Sound Level 85dB Drive Type Internal Tone Type Continuous Diameter 12mm Height 9.5mm Dimensions 12 (Dia.) x 9.5mm Minimum Operating Temperature -30°C Maximum Operating Temperature +70°C Maximum Frequency 2.7kHz Minimum Frequency 1900Hz Supply Current 30mA Product details Round PCB mount continuous tone buzzers This is a range of high sound output piezo buzzers. They are suitable for PCB mounting and are housed in a circular case.