Heat transfer management apparatuses are disclosed. In one embodiment, a heat transfer management apparatus includes a composite lamina having an insulator substrate and a plurality of thermal conductor traces coupled to the insulator substrate. The plurality of thermal conductor traces are arranged into a first enhanced thermal conduction region and a second enhanced thermal conduction region. The heat transfer management apparatus also includes a heat generating component mount and a temperature sensitive component mount in electrical continuity with the heat generating component mount, where a shielding path projection extends from the heat generating component mount towards the temperature sensitive component mount, and at least one of the thermal conductor traces is transverse to the shielding path projection between the heat generating component mount and the temperature sensitive component mount to steer heat flux away from the temperature sensitive component mount.