Description

RailClamps are surge rated diode arrays designed to protect high speed data interfaces. The SR 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 of the SR series devices 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 down stream components.

Features

♦ ESD protection for high-speed data lines to

IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)

IEC 61000-4-4 (EFT) 40A (5/50ns)

IEC 61000-4-5 (Lightning) 12A (8/20µs)

♦ Array of surge rated diodes with internal TVS Diode

♦ Small package saves board space

♦ Protects four I/O lines

♦ Low capacitance: 3pF typical

♦ Low clamping voltage

♦ Low operating voltage: 5.0V

♦ Solid-state silicon-avalanche technology

Applications

♦ USB 2.0 Power and Data Line Protection

♦ Video Graphics Cards

♦ Monitors and Flat Panel Displays

♦ Digital Video Interface (DVI)

♦ 10/100/1000 Ethernet

♦ Notebook Computers

♦ SIM Ports

♦ ATM Interfaces

♦ IEEE 1394 Firewire Ports