Audio 5VDC 16VDC 14mA 75dBA 3400Hz to 4300Hz Pin Through Hole
压电 指示灯，内部驱动 3 ~ 14mA 3.85kHz 75dB @ 5V，61cm 通孔 PC 引脚
得捷:
BUZZER PIEZO 23MM TH
MASTER:
Audio 5VDC 16VDC 14mA 75dBA 3400Hz to 4300Hz Pin Through Hole
Electro Sonic:
Audio 5VDC 16VDC 14mA 75dBA 3400Hz to 4300Hz Pin Through Hole