RCL series long side termination resistors can be used to improve reliability of a circuit board that will be exposed to thermal cycles. After a high number of temperature cycles, physical forces due to mismatches of the coefficients of thermal expansion (CTE) can cause solder joint fatigue. Minimizing the distance between terminals for each component is a key to mitigating temperature cycling issues, as doing so will reduce the significance of differences in the coefficients of thermal expansion between the components and the PCB. The reasons RCL long side termination components excel against thermal cycling requirements are threefold. First, larger terminations create a more robust solder joint. Second, long side termination reduces distance between terminations as a matter of geometry. Finally, enhanced power ratings achieved with lower thermal resistivity of larger terminations allows for smaller sized components to be used, further reducing the distance between terminals. For example, a standard 1206 size resistor can be replaced with an RCL0406 long side termination part, retaining power rating 0.25 W of the original 1206 size part but improving thermal cycling performance to that of a standard 0402 size resistor.