FCA-410-1619M is a hermetically sealed 4PDT military/aerospace relay from the FCA-410 series, designed for high-reliability switching applications. This polarized single-side stable relay features permanent magnet drive with balanced force construction, providing increased contact pressure in both operated and deactivated states. The relay is rated for 10 amperes continuous duty with silver cadmium oxide contacts featuring gold plating, and operates over a temperature range of -70°C to +125°C at altitudes up to 300,000 feet. It offers shock resistance up to 200G for 6ms and sinusoidal vibration capability up to 30G from 70 to 3000 Hz. QPL approved and qualified to MIL-R-83536, this relay is ideal for demanding military and aerospace applications requiring reliable switching performance in extreme environmental conditions.