DBT71275U is a UL-approved normally closed high voltage reed relay designed for applications requiring very high isolation voltages. It features tungsten contacts with 7.5kV isolation across contacts (DC or AC peak) and 17kV isolation between contact and coil. The relay operates with a 12V DC coil (must operate voltage 9V, must release voltage 1.25V) with a coil resistance of 240O, and offers switching capabilities up to 5000V DC/AC peak with a maximum switching power of 50W. With an operating temperature range of -20°C to +70°C, operate time of 2.0ms, and release time of 3.0ms, this relay is suitable for high reliability applications such as cardiac defibrillators, test equipment, and high voltage power supplies.