Rather than waste any more of my time on this thread, I'll just include a definition of what a heat sink does and then move on. You can believe what I say or not. I sleep like a baby at night regardless.

Mopar ballast resistors perform as a resistor in a circuit by virtue of their electrical properties and they perform as heat sinks because of their mechanical properties and materials used in construction.

This supports what I've been saying about dissipating heat caused by the primary ignition circuit.


A heat sink (also commonly spelled heatsink) is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device to a fluid medium, often air or a liquid coolant, where it is dissipated away from the device, thereby allowing regulation of the device's temperature at optimal levels.