component of a printed circuit board to bring it within a specified operating temperature range quickly a temperature sensor positioned in proximity to the component and is coupled with a logic circuit that receives a reading from the temperature sensor and compares it to a threshold temperature value a heating element positioned in proximity to the component is coupled with a power source and a switch the switch is triggered by the logic circuit to activate the heating element when the temperature sensor reading is cooler than the threshold temperature value thereby causing the component to warm up the switch is triggered again by the logic circuit to de activate the heating element when the temperature sensor reaches the threshold temperature value or a predetermined timeout period expires application_number US 43551709 A description on a typical printed circuit board pcb there may be several components that cannot function at low temperatures e g u2212 30 u00b0 c or colder these components however are utilized by devices that may encounter environmental conditions that routinely experience u2018 out of range u2019 temperature conditions in such cases the performance of the devices suffers sometimes to the point of being inoperable the embodiments of the present invention described herein address such situations by applying an intelligent localized heat source to selected components prior to operating the main device so as to avoid damaging the component or other components of the overall device fig1 is a top view illustration of one embodiment of a typical printed circuit board pcb 10 that can be found within an rf module.