The DAR70575SU is a UL-approved, normally open high-voltage reed relay from the DA(UL) series designed for high-reliability applications requiring excellent isolation. This relay features a 7.5 kV isolation voltage across contacts with a 24V DC coil, achieving a must-operate voltage of 20V and a must-release voltage of 4V. The relay incorporates a high vacuum reed switch with rhodium contact material, delivering low contact resistance of 50 mO (typical 15 mO), and supports a maximum switching power of 50W with a maximum switching voltage of 1000V DC/AC peak and switching current of 3A. With an operate time of 3.0 ms and release time of 2.0 ms (with diode fitted), along with an insulation resistance of 10¹° O minimum, this relay is ideal for cardiac defibrillators, test equipment, and high-voltage power supplies where high isolation and reliability are critical.