SC648ANJ

Buzzer; 4mA Max. @ 6VDC, 30mA Max. @ 28VDC; 6 to 28VDC; 2900 + 500Hz

压电 指示灯，内部驱动 4 ~ 26mA 2.9kHz 80dB @ 10V，61cm 面板安装 螺纹端子，快速连接片 - 0.250"（6.35mm）

得捷:
BUZZER PIEZO 42.98MM PNL MNT

艾睿:
Audio Indicator Piezo 10VDC/10VAC 48VDC/48VAC 26mA 80dBA 2400Hz to 3400Hz Panel Mount Screw Bulk

Allied Electronics:
Buzzer; 4 mA Max. @ 6 VDC, 30 mA Max. @ 28 VDC; 6 to 28 VDC; 2900 + 500 Hz

Electro Sonic:
Audio 10VAC 48VAC 26mA 91dBA 2400Hz to 3400Hz Screw Panel Mount