Features 【High Quality】100% brand new and high quality. Low power consumption. 【Application】Piezoelectric disc for buzzer pressure sensor speaker DIY. 【Function】Voice and music applications. Broad tonal response. 【Durable and Reliable】No contact; therefore no noise and high reliability. High and stable installation. 【Lead Size】Simple installation. Round terminal improves installation reliability (cutting and riveting). Specifications:  Storage conditions: Temperature: -10-+40℃ Humidity: 15-85%R.H. Welding condition:  (1) Pin type reflow soldering conditions Temperature: 260℃±5℃ Time: within 10±1s The welding part is the part of the lead terminal except 1.5mm away from the product. (2) Soldering condition for soldering iron for pin terminal Temperature: 350±5℃ Time: within 3.0±0.5s The welding part is the part where the lead terminal is 1.5mm away from the product. (3) Reflow soldering conditions for surface mounting Temperature curve: Figure 1 Number of times: up to 2 times Size: 3.5*3.5*0.1cm  Packing list:  Disc * 5 Copper wire * 5      Package List