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Semtech RClamp04022S RailClamp® 2-Line TVS Diode

Semtech RClamp04022S RailClamp® 2-Line TVS Diode is designed to protect sensitive electronics from damage or latch-up due to electrostatic discharge (ESD) and electrical overstress (EOS). The Semtech RClamp04022S features a large cross-sectional area junction for conducting high transient currents. The diode offers desirable characteristics for board-level protection, including fast response time, a low operating/clamping voltage, and no device degradation. RClamp04022S is in a SOT23-3 lead package with lead-free matte tin finished leads. This device may be used to meet the ESD immunity requirements of IEC 61000-4-2 (±30kV air, ±30kV contact discharge). Low maximum capacitance (0.75pF at VR=0V) minimizes loading on sensitive circuits. Each device will protect two high-speed data lines operating at 4V.

Features

  • High ESD withstand voltage
    • ±30kV (contact), ±30kV (air) per IEC 61000-4-2 (ESD)
    • 18A (8/20μs) per IEC 61000-4-5 (Lightning)
    • 4kV, 80A per IEC 61000-4-4 (EFT)
  • Low 0.75pF maximum junction capacitance
  • Protects two high-speed data lines
  • 4V working voltage
  • Low ESD clamping voltage
  • Low 0.12Ω typical dynamic resistance
  • Low reverse leakage current
  • Solid-state silicon-avalanche technology
  • SOT23 3L package
  • Lead-free, Halogen-free, and RoHS/WEEE compliant

Applications

  • USB 2.0
  • Low-Voltage Differential Signaling (LVDS)
  • General-Purpose Input/Outputs (GPIOs)
  • Analog videos
  • USB Type-C®
  • Keypads

Specifications

  • 100W maximum peak pulse power (tp = 8/20μs)
  • 18A maximum peak pulse current (tp = 8/20μs)
  • 6V to 10V reverse breakdown voltage range
  • 50nA maximum reverse leakage current, <10nA typical
  • 5.6V maximum clamping voltage, 4.6V typical
  • 3.0V (4A) to 4.4V (16A) ESD clamping voltage range
  • -40°C to +125°C operating temperature range
  • UL 94V-0 molding compound flammability rating

Schematic and Pin Configuration

Schematic - Semtech RClamp04022S RailClamp® 2-Line TVS Diode

Dimensions (mm)

Mechanical Drawing - Semtech RClamp04022S RailClamp® 2-Line TVS Diode

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Publicado: 2025-09-30 | Atualizado: 2025-10-07