DAR71275PU is a UL-approved, normally open high-voltage relay from the DA(UL) series designed for high-reliability applications requiring 7.5kV isolation between contacts. The relay features a 12V DC coil with a must-operate voltage of 9V and must-release voltage of 1.25V, with operate and release times of 3.0 ms and 2.0 ms respectively (with diode fitted). It offers a choice of rhodium or tungsten contact materials, with rhodium providing low contact resistance (50 mO typical) and tungsten capable of switching higher voltages up to 5000V peak. The relay is suitable for applications such as cardiac defibrillators, test equipment, and high-voltage power supplies, with PCB or panel mount options and multiple HV connection styles including flying leads, solder turret, and spade terminals.