BUZZER PIEZO 23MM RADIAL
压电 指示灯，内部驱动 50mA 3.9kHz 85dB @ 20V，30cm 通孔 PC 引脚
得捷: BUZZER PIEZO 23X23MM TH
艾睿: Audio Indicator Piezo 20VDC 28VDC 50mA 85dBA 3400Hz to 4400Hz Through Hole Pin Bulk
Mallory