DAR71275TU is a UL-approved normally open high-voltage relay designed for high-reliability applications requiring excellent isolation and switching performance. This relay features 7.5 kV isolation across contacts with tungsten contact material, enabling switching voltages up to 5000 V DC or AC peak and switching currents up to 2 A maximum. The relay incorporates a high vacuum reed switch with a maximum switching power of 50 W, contact resistance of 250 mO (typical 100 mO), and insulation resistance of 10¹° O minimum. The coil operates at 12 V DC with a must-operate voltage of 9 V and must-release voltage of 1.25 V, with operate and release times of 3.0 ms and 2.0 ms respectively when a diode is fitted. The wire wrap turret connection style with PCB mount and M4 stud fixing makes it suitable for high-voltage power supplies, test equipment, and cardiac defibrillators where high isolation and reliability are critical.