压电蜂鸣器和音频指示器 CONSTANT/SLOW PULSE 3-24VDC, 95DB, 30X16
压电式（带反馈） 传感器，外部驱动 12 V 10mA 3.5kHz 95dB @ 12V，30cm 通孔 PC 引脚
得捷:
BUZZER PIEZO 12V 30MM RADIAL
贸泽:
压电蜂鸣器和音频指示器 CONSTANT/SLOW PULSE 3-24VDC, 95DB, 30X16
艾睿:
Audio Indicator Piezo 3VDC 24VDC 10mA 12VDC 95dBA 3000Hz to 4000Hz Through Hole Bulk
Allied Electronics:
DUAL TONE INDICATOR-PIN ROHS
MASTER:
Audio 3VDC 24VDC 10mA 12VDC 95dBA 3000Hz to 4000Hz Through Hole
Electro Sonic:
Audio 3VDC 24VDC 10mA 12VDC 95dBA 3000Hz to 4000Hz Through Hole