Description
RailClamps are surge rated diode arrays designed to protect high speed data interfaces. The RClamp series has been specifically designed to protect sensitive components which are connected to data and transmission lines from overvoltage caused by ESD (electrostatic discharge), EFT (electrical fast transients), and lightning.
The unique design of the RClamp series devices incorporates four 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 RClampTM0504M has a low typical capacitance of 3pF and operates with virtually no insertion loss to 1GHz. This makes the device ideal for protection of high-speed data lines such as USB 2.0, Firewire, and DVI interfaces.

Features
◆ ESD protection for high-speed data lines to
   IEC 61000-4-2 (ESD) 15kV (air), 8kV (contact)
   IEC 61000-4-5 (Lightning) 12A (8/20µs)
   IEC 61000-4-4 (EFT) 40A (5/50ns)
◆ Array of surge rated diodes with internal TVS Diode
◆ Small package saves board space
◆ Protects four I/O lines and one Vcc line
◆ Low capacitance: 3pF typical
◆ Low clamping voltage
◆ Low operating voltage: 5.0V
◆ Solid-state silicon-avalanche technology

Applications
◆ Digital Video Interface (DVI)
◆ 10/100/1000 Ethernet
◆ Monitors and Flat Panel Displays
◆ Notebook Computers
◆ High Definition Multi-Media Interface (HDMI)
◆ USB 2.0 Power & Data Line Protection
◆ IEEE 1394 Firewire Ports
◆ Projection TV