The TELEDYNE RELAYS part ER422D-9B is an electromechanical relay designed for various applications. It operates at a voltage of 9VDC with a coil resistance of 280 ohms. This relay features a double-pole double-throw (DPDT) configuration, allowing it to switch between two different circuits. With a compact size of 9.4x9.4x7.11mm and through-hole mounting (THT), it is easily integrated into circuit boards. The ER422D-9B is a latching relay, meaning it maintains its contacts in the open or closed state even after the input power is removed. This relay is capable of handling 1ADC (direct current) or 0.25AAC (alternating current), making it suitable for various power switching applications.