DAR71210F-HR is a high insulation resistance, high voltage reed relay designed for applications requiring very high isolation voltages and low leakage current. It features 10kV isolation across contacts, rhodium contact material for low contact resistance, and a 12V DC coil voltage. The relay offers an insulation resistance of 1x10^14 Ohms minimum, operates within a temperature range of -20°C to +70°C, and includes flying lead HV connections. With a maximum switching power of 50W, switching voltage of 1000V DC or AC peak, and switching current of 3A, this relay is ideal for sensitive test and measurement circuits, cardiac defibrillators, and high voltage power supplies where high reliability and minimal leakage current losses are critical.