M22759/9 wires have extruded PTFE insulation for high-temperature applications where the additional abrasion resistance of mineral-filled PTFE insulation is not required.These wires are especially well-suited in applications where smoke emission, overload stability, and flammability are major concerns. For versions of these wires with thinner-wall insulation and 600V voltage rating, see M22759/11 and /12.