DBR72475SU is a UL-approved normally closed high voltage reed relay designed for applications requiring very high isolation voltages. It features 7.5kV isolation across contacts with rhodium contact material, providing low contact resistance of 50 mO max (15 mO typical) and a maximum switching voltage of 1000V DC or AC peak. The relay operates with a 24V DC coil, with a must operate voltage of 20V DC and coil resistance of 925O, and offers an operating temperature range of -20°C to +70°C. With PCB mount and coil connection combined with stud fixing and 1/4" spade HV connections, this relay is suitable for high reliability applications such as cardiac defibrillators, test equipment, and high voltage power supplies.