BUZZER PIEZO 23MM RADIAL
压电 指示灯，内部驱动 10mA 3.9kHz 85dB @ 2V，30cm 通孔 PC 引脚
得捷:
BUZZER PIEZO 23MM TH
艾睿:
Audio Indicator Piezo 2VDC 5VDC 10mA 85dBA 3400Hz to 4400Hz Through Hole Pin Bulk/Tray
Allied Electronics:
AUDIO SIGNAL 2-5VDC 90DB@5VDC PCB FAST PULSE