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High Current Capability RCL Jumpers

Zero-ohm resistors, also known as "jumpers", are often used to make connections between printed circuit board traces when an unconnected trace is between them. Depending on the width of the trace that must be crossed, the jumper component used will have a necessary length between terminals. Another factor to consider when choosing a jumper is the continuous and surge current requirements for the circuit traces that are to be connected via the jumper. If a standard geometry chip jumper will not meet the current requirement, then RCL series long side terminal jumpers may be a solution. As shown here in the table on the bottom and chart on the top, RCL series jumpers offer vastly increased current capabilities while minimizing distance between the end terminals. The 0612 size RCL jumper withstands 6 A continuously versus 2 A that the 0603 size standard geometry jumper withstands (three times as much) even though distance between the part terminals remains similar. As another example, the 1225 size RCL jumper withstands 12 A continuously versus the much lower value of 3.5 A that the 1206 size standard geometry jumper withstands (over three times as much), again, with similar distance between end terminals.

PTM Published on: 2021-11-01