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Performance

By placing the terminations of the part on the long side of the component, a number of benefits are achieved. The area of the termination compared to the chip size is greatly increased for some chip sizes. For example, a standard geometry 2512 size chip resistor may have a bottom termination area of approximately 3.78 mm2, while the RCL1225 has a bottom termination area of approximately 10.08 mm2 (over 2.5 times as much). This creates a more robust solder joint after assembly. Additionally, the larger termination area helps to reduce the thermal resistance from the resistive element of the part to the circuit trace of the printed circuit board, thereby increasing the maximum power that the component can dissipate, or allowing for a component with shorter distance between terminals to be chosen while retaining the necessary specified maximum power dissipation.

PTM Published on: 2021-11-01