RCLAMP0524PATCT

RClamp0524PATCT is a Semtech RailClamp four-line TVS protection array in an SLP2510P8 package, protecting four 5 V I/O lines with only 0.3 pF of line capacitance and IEC 61000-4-2 protection rated to ±17 kV air discharge — ESD protection for USB, video and multi-line data ports where the protection device must not load the signal it guards. The 0.3 pF capacitance is the selection point: at multi-gigabit edge rates, picofarads of added capacitance cost eye margin, and this array's fraction of a picofarad is why it is specified on high-speed ports instead of a discrete diode per line. Order it under Semtech's own code exactly as written — RClamp0524PATCT, with no dot in the suffix; some third-party listings insert a punctuation mark into this part number, but the manufacturer's form has none, and matching the manufacturer's form is what keeps the order unambiguous. Selection advice: confirm the protected lines are 5 V-class — the array's working voltage is chosen for 5 V I/O, and higher-voltage ports need a different member of the RailClamp family. Parameters verified against Semtech documentation.