ESD Protection
  • RClamp0521Z
  • Ultra Small RClamp® 1-Line ESD protection
  • RClamp0531Z
  • Ultra Small RClamp® 1-Line ESD protection
  • Rclamp0542Z
  • Ultra Small RClamp® 2-Line ESD Protection
  • RClamp0542ZA
  • Femto Farad RailClamp® 2-Line, 300fF ESD Protection
  • RClamp0552T
  • Ultra Low Cap, 2 Line, Bidirectional ESD Protection
  • RClamp0564P
  • Femto Farad RailClamp® 4-Line, 170fF ESD Protection
  • RClamp1255P
  • Low Capacitance RClamp® Surge Protection for uUSB Interfaces
  • RClamp1521PQ
  • Ultra-Low Capacitance 1-Line ESD Protection
Semtech SR70

Semtech SR70

RailClamp® Low-Capacitance TVS Diode Array

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RailClamps are surge rated diode arrays designed to protect high speed data interfaces. The SR70 has been specifically designed to protect sensitive components which are connected to data and transmission lines from over-voltages caused by  electrostatic discharge (ESD),  electrical fast transients (EFT), and lightning.


  • Transient protection for high-speed data lines to
    • IEC 61000-4-2 (ESD) ± 15 kV (air), ± 8 kV (contact)
    • IEC 61000-4-4 (EFT) 40 A (5/50 ns)
    • IEC 61000-4-5 (Lightning) 1 kV, 24 A (8/20 µs)
  • Array of surge-rated, low-capacitance diodes
  • Protects two I/O lines
  • Low capacitance (5 pF typical) for high-speed interfaces
  • Low clamping voltage
  • Solid-state silicon-avalanche technology


  • ADSL lines
  • I2C bus protection
  • Video line protection
  • T1/E1 secondary IC side protection
  • Portable electronics
  • Microcontroller input protection
  • WAN/LAN equipment
  • ISDN S/T interface



Order Codes

  • SR70.TCT: Lead-free, RoHS and WEEE compliant, 3000 pcs. Tape & Reel
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