Product ID KWT-G1770F Rated Voltage 12Vp-p Square Wave Max.Allowable Voltage 30Vp-p Square Wave Max.Rated Current 2mA at 4.0KHz/ 12Vp-p Squre Wave Min.Sound Pressure Level 80dB at 4.0KHz/ 12Vp-p Square Wave/ 10cm Capacitance at 120Hz 15nF± 30% Resonant Frequency 4.0± 0.5KHz Operating Temperature -20~ + 80° C D( mm) Ø 19 H( mm) 10.5 Weight 1.5g