RClamp®0554S TVS Diode Array

By Semtech 179

RClamp®0554S TVS Diode Array

Semtech's RailClamp® is a low capacitance TVS array designed to protect high speed data interfaces. This series has been specifically designed to protect sensitive components which are connected to data and transmission lines from overvoltage caused by electrostatic discharge (ESD), electrical fast transients (EFT), and lightning.

The unique design incorporates eight surge rated, low capacitance steering diodes and a TVS diode in a single package. During transient conditions, the steering diodes direct the transient to either the positive side of the power supply line or to ground. The internal TVS diode prevents over-voltage on the power line, protecting any downstream components.

The RClamp®0554S is in a 6-lead SOT-23 package. The leads are finished with lead-free matte tin. Each device will protect up to four high-speed lines. They may be used to meet the ESD immunity requirements of IEC 61000-4-2, Level 4 (15 kV air, 8 kV contact discharge). The combination of small size, low capacitance, and high surge capability makes them ideal for use in applications such as Ethernet, USB 2.0, and video interfaces.

  • Low 5 V working voltage protection
  • High-surge immunity rating: 25 A (8/20 µs)
  • Protects 4 I/O lines
  • Low capacitance (3 pF typical)
  • Industry standard SOT-23 package
  • 10/100 Ethernet
  • Digital video interface
  • Access equipment
  • VoIP telephony
  • 1394 ports
  • SIM ports

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