12*7.5有源矮一体蜂鸣器

rated voltage(vo-p)	5	12
operating voltage(vo-p)	3～7	7～15
*rated current (ma)	≤30	≤30
*sound output at 10cm(db)	≥82	≥85
resonant frequency (hz)	2700±300	2700 ±300
tone	continuous	continuous
operating temperature(℃)	-20～+70	-20～+70
storage temperature(℃)	-30～+80	-30～+80
*value applying rated voltage