Audio Piezo Ind 28-48V Pnl Mnt
压电 指示灯，内部驱动 40mA 2.9kHz 75dB @ 28V，61cm 面板安装 端接块
得捷:
BUZZER PIEZO 42.85MM PNL MNT
艾睿:
Audio Indicator Piezo 28VAC 48VAC 40mA 75dBA 2400Hz to 3400Hz Thread Mount Quick Connect Bulk
Allied Electronics:
SCE048MA3CK1B ROHS