The DAT70515F-HR is a high-voltage reed relay designed for precision switching in demanding applications requiring very high isolation voltages and low leakage currents. This 5kV SPNO (single-pole normally-open) relay features rhodium contacts that provide low contact resistance and high reliability, with a maximum switching power of 50 W and maximum switching voltage of 1000 V DC or AC peak. The relay operates with coil voltages of 5V, 12V, or 24V DC, with a must-operate voltage of 3.7–9 V DC (depending on coil selection) and a must-release voltage of 0.5–1.25 V DC, while maintaining an insulation resistance of 1×106 O minimum. With an operating temperature range of -20°C to +70°C, a lifetime of 106 cycles in dry switching, and a contact resistance of 50 mO (typical 15 mO), this relay is ideal for sensitive test and measurement circuits, cardiac defibrillators, and high-voltage power supplies where low leakage current losses and high isolation are critical.