Cooktop appliance and temperature limiting coil

An electric cooktop appliance, the cooktop appliance comprising:

• an electric heating coil assembly comprising a heating element comprising:
• a coil section;
• a thermostat;
• and
• a sensor support assembly at which the thermostat is positioned, the sensor support assembly comprising:
• a shroud cover positioned on or above a shroud, the shroud cover comprising a top wall and a sidewall extending downward from the top wall, the top wall comprising a flat upper surface facing upward to contact a utensil on the heating element, the top wall comprising a non-flat lower surface facing downward;
• a spring bracket configured to bias the shroud cover upwardly toward the utensil, the spring bracket comprising a mounting plate and a biasing arm, the spring bracket forming a central recess at which the thermostat is positioned, wherein the mounting plate of the spring bracket comprises a non-flat contact portion corresponding to the non-flat surface at the lower surface of the shroud cover.