A resistor element includes a base substrate having first and second surfaces opposing each other; a resistor layer disposed on the first surface of the base substrate; first and second terminals disposed on opposing end portions of the base substrate, respectively, and electrically connected to opposing sides of the resistor layer, respectively; a third terminal disposed between the first terminal and the second terminal on the second surface of the base substrate and spaced apart from the first terminal and the second terminal; and electrostatic discharge (ESD)-preventing members connecting the first terminal and the third terminal to each other and connecting the second terminal and the third terminal to each other.