The ER412DM4-26A/G is an ultraminiature, hermetically sealed DPDT relay designed for high-density PC board mounting and low-level switching applications. It operates on a nominal coil voltage of 26.5 Vdc and includes an internal silicon diode for coil transient suppression. The relay is rated for switching DC resistive loads up to 1 A at 28 Vdc and features precious metal alloy contacts with gold plating for excellent performance. Built for high reliability with all-welded construction, it offers high resistance to shock and vibration across a wide operating temperature range. Common applications include T-R switching in handheld radio transceivers and other high-reliability systems where small size and low coil power dissipation are critical.