EF2-5NU-L – NEC

The EF2-5NU-L is a miniature, general-purpose electromechanical relay manufactured by NEC, configured with a Double Pole Double Throw (DPDT) contact arrangement. It is designed for through-hole mounting and operates with a nominal coil voltage of 5VDC. The relay is capable of switching loads up to 1A at a specified voltage, typically 30VDC or 125VAC for resistive loads, as is standard for relays of this type. The coil resistance is approximately 125 ohms, resulting in a coil current draw of around 40mA at the nominal voltage. Contact material is typically a silver alloy, providing reliable switching performance. The EF2-5NU-L is commonly used in low-power switching applications such as signal routing, interface circuits, and control systems where isolation between control and load circuits is required. Its compact size and low coil power consumption make it suitable for high-density PCB layouts.