D31C2100 is a dual in-line reed relay featuring one changeover contact designed for low-voltage switching applications. The relay has a nominal coil voltage of 5V with a coil resistance of 200O (±10% at 20°C), a minimum operating voltage of 3.7V, and a maximum input voltage of 12V. It features rhodium contact material with a maximum switching power of 3VA, a maximum switching current of 250mA, and a maximum switching voltage of 100V peak. The relay operates reliably across a temperature range of -40°C to +85°C, with an operate time of 1.5ms and release time of 2ms, making it suitable for industrial control, telecommunications, and instrumentation applications requiring compact, reliable switching.