The CUI Devices part CMT-13031-SMT-TR is a high-quality, surface mount [SMT] piezo audio transducer buzzer that is perfect for various electronic applications. With a compact size of 12.8 mm and a voltage rating of 25 V, this buzzer offers excellent performance and reliability. It provides a loud and clear sound output of 70 dB, making it suitable for both indoor and outdoor use. The surface mount design allows for easy and convenient installation on PCBs, saving valuable space in your electronic devices. Whether you need a buzzer for alarms, notifications, or other audio signaling applications, the CMT-13031-SMT-TR is an ideal choice.