Audio 9VDC 12VDC 50mA 12VDC 96dBA 2200Hz to 3200Hz Pin Through Hole
压电 指示灯，内部驱动 12 V 50mA 2.7kHz 103dB @ 12V，10cm 通孔 PC 引脚
得捷: BUZZER PIEZO 12V 26MM TH
Electro Sonic: Audio 9VDC 12VDC 50mA 12VDC 96dBA 2200Hz to 3200Hz Pin Through Hole
Mallory