Low-Capacitance ESD Protection
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  • Ultra Low Capacitance RClamp® 4-Line ESD Protection
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  • TClamp1272S
  • Low Capacitance TClamp® Surge Protection for xDSL Interfaces
  • TClamp2512N
  • Low Capacitance TransClamp® Surge Protection for Ethernet Interfaces
Semtech RClamp0524PQ

Semtech RClamp0524PQ

Low Capacitance RailClamp® 4-Line Surge and ESD Protection

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RailClamp® TVS arrays are ultra low capacitance ESD protection devices designed to protect high speed data interfaces. This series has been specifically designed to protect sensitive components which are connected to high-speed data and transmission lines from overvoltage caused by ESD (electrostatic discharge), CDE (Cable Discharge Events), and EFT (electrical fast transients).

RClamp0524PQ has a typical capacitance of only 0.3 pF between I/O pins. This allows it to be used on circuits operating in excess of 3GHz with no significant signal attenuation. ESD characteristics are highlighted by high ESD withstand voltage (+/-15kV per IEC 61000-4-2) and low dynamic resistance (0.43 Ohms typical). Each device will protect four lines operating at 5 volts. 


  • Transient Protection to
    • IEC 61000-4-2 (ESD) 25kV (Air), 15kV (Contact)
    • IEC 61000-4-4 (EFT) 4kV (5/50ns)
    • IEC 61000-4-5 (Lightning) 5A (8/20μs)
    • ISO-10605 (ESD) 20kV (Air), 12kV (Contact)
  • Qualified to AEC-Q100, Grade 1
  • Protects four High-Speed Data Lines
  • Working Voltage: 5V
  • Low Capacitance: 0.8 pF Maximum (I/O to GND)
  • Dynamic Resistance: 0.43 Ohms (Typ)
  • Solid-State Silicon-Avalanche Technology


  • Automotive Applications
  • Industrial Equipment
  • HDMI
  • Digital Visual Interface
  • MDDI Ports
  • PCI Express


  • SLP2510P8

Order Codes

  • RClamp0524PQTCT - Pb-Free, Halogen Free, RoHS/WEEE Compliant
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