Audio 10VDC/10VAC 48VDC/48VAC 16mA 68dBA 2400Hz to 3400Hz Screw Panel Mount
压电 指示灯，内部驱动 4 ~ 16mA 2.9kHz 77dB @ 10V，61cm 面板安装 螺纹端子，快速连接片 - 0.250"（6.35mm）
得捷:
BUZZER PIEZO 42.85MM PNL MNT
艾睿:
Audio Indicator Piezo 10VDC/10VAC 48VDC/48VAC 16mA 68dBA 2400Hz to 3400Hz Panel Mount Screw Bulk
Allied Electronics:
SCH648AR ROHS