The E39-R7 is a miniature, single-pole, double-throw (SPDT) relay created by Omron. This relay is designed to switch low-voltage AC or DC circuits. It is a compact size, with a 10 x 12 x 17.8mm overall dimensions, and with a 3.2 mm power consumption. The E39-R7 has a dielectric strength between contacts of 4KV and between contact and coil of 4KV, as well as an insulation resistance of 100MO. It has a rated voltage of 5V, a coil current of 11.2mA, a coil resistance of 446O, and a contact rated current of 3A. This relay provides quick response time, low noise, and reliability.