DBT71275SU is a UL-approved normally closed high voltage reed relay designed for applications requiring high isolation voltages. It features tungsten contacts with 7.5kV isolation across contacts (DC or AC peak), a maximum switching voltage of 5000V, and a maximum switching power of 50W. The relay operates with a 12V DC coil (must operate voltage 9V DC, coil resistance 240O) and offers PCB mount with stud fixing and 1/4" spade HV connections. With an operating temperature range of -20°C to +70°C and contact-to-coil isolation of 17kV, this relay is suitable for high reliability applications such as cardiac defibrillators, test equipment, and high voltage power supplies.