Description
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 ESD (electrostatic discharge), EFT (electrical fast transients), and lightning. The SR70 has been optimized for use on ADSL and other high-speed interfaces.

Features
◆ Transient 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) 1kV, 24A (8/20µs)
◆ Array of surge rated, low capacitance diodes
◆ Protects two I/O lines
◆ Low capacitance (5pF typical) for high-speed interfaces
◆ Low clamping voltage
◆ Solid-state silicon-avalanche technology

Applications
◆ 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