Zktc-50/15 cold cathode trigger tube is a gas filled trigger tube with ceramic metal sealing structure. The tube is small in size, light in weight, firm in structure, and can withstand severe environmental conditions, such as sharp impact, strong vibration, great acceleration, temperature difference impact exceeding 120 ℃, etc. it can be used as accurate timing and ignition switch in a variety of devices. The tube can also be used in pulse forming technology, automatic control technology, etc.