ESD Protection
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Semtech RClamp1851ZA

Semtech RClamp1851ZA

Ultra Small RClamp® 1-Line, 18V ESD Protection

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RClamp® TVS diodes are designed to protect sensitive electronics from damage or latch-up due to ESD. They are designed to replace multilayer varistors (MLVs) in portable applications such as cell phones, notebook computers, and other portable electronics. This device offers desirable characteristics for board level protection including fast response time, low operating and clamping voltage, and no device degradation.


  • High ESD withstand Voltage: +/-17kV (Contact) and +/- 20kV (Air) per IEC 61000-4-2
  • Ultra-small package
  • Protects one high speed data line
  • Low ESD clamping voltage
  • Working voltage: 18V
  • Low capacitance: 0.35pF typical
  • Low leakage current
  • Extremely low dynamic resistance: 0.16 Ohms (Typ)
  • Solid-state silicon-avalanche technology


  • Near Field Communication (NFC) lines
  • RF signal lines
  • Cellular Handsets
  • Tablets
  • FM Antenna


  • SLP0603P2X3F: 0.6 x 0.3 x 0.25mm

Order Codes

  • RClamp1851ZATFT: Pb-Free, Halogen Free, RoHS/WEEE Compliant, 15,000 pcs.
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