DAT71275SU is a UL-approved, normally open high-voltage relay from the DA(UL) series designed for high-reliability applications requiring excellent isolation and switching performance. The relay features 7.5 kV isolation across contacts with rhodium contact material, delivering low contact resistance of 50 mO (typical 15 mO) and supporting a maximum switching voltage of 1000 V DC or AC peak with a maximum switching current of 3 A. It incorporates a high vacuum reed switch technology and is available with PCB mounting and 0.25" spade terminals for the high-voltage connections, making it suitable for applications such as cardiac defibrillators, test equipment, and high-voltage power supplies. The relay operates with a 24 V DC coil, featuring a must-operate voltage of 20 V and a must-release voltage of 4 V, with operate and release times of 3.0 ms and 2.0 ms respectively.