The DAR70510U is a UL-approved, normally open high-voltage reed relay designed for high-reliability applications requiring excellent isolation. This relay features a 5kV isolation voltage across contacts with rhodium contact material, providing low contact resistance of 50 mO (typical 15 mO) and high insulation resistance of 10¹° O. The relay operates with a 5V DC coil, requiring a must-operate voltage of 3.7V and must-release voltage of 0.5V, with operate and release times of 3.0 ms and 2.0 ms respectively when a diode is fitted. It can switch a maximum of 3A at up to 1000V DC or AC peak, with a maximum switching power of 50W and contact-to-coil isolation of 17kV. The DAR70510U is ideal for cardiac defibrillators, test equipment, high-voltage power supplies, and other applications requiring high isolation and reliability in extreme voltage environments.