SMD Buzzer 5x5x1.9mm hot seller 

Electrical Specifications: Type Unit SMT-5020A-03040   Rated Voltage V 3   Operating Voltage  V 2~ 4 * Rated Current (Max)  mA 110 * Min sound output at 10cm  dB 75 * Resonant Frequency  Hz 4000Hz Coil Resistance Ω…