Conductive composite compositions and circuit protection devices including a conductive composite composition are disclosed. The conductive composite composition includes a polymer material, a plurality of conductive particles, and a high melting point additive. The high melting point additive comprises at least 1% of the conductive composite, by volume of the total composition. The circuit protection device includes a body portion comprising a conductive composite composition, the conductive composite composition comprising a polymer material, a plurality of conductive particles, and at least 1%, by volume, of a high melting point additive loaded in the polymer material, and leads extending from the body portion, the leads arranged and disposed to electrically couple the circuit protection device to an electrical system. Also provided is a method of forming a conductive composite.