描述 Description

RailClamp is an ultra low capacitance Transient Voltage

Suppressor (TVS) designed to protect high speed data

interfaces. This device has been specifically designed to

protect sensitive components which are connected to highspeed

data and transmission lines from over-voltage

caused by ESD (electrostatic discharge), CDE (Cable

Discharge Events), and EFT (electrical fast transients).

The RClampTM0531T has a maximum capacitance of only

0.80pF. This allows it to be used on circuits operating in

excess of 2.5GHz without signal attenua-tion. They may be

used to meet the ESD immunity requirements of IEC

61000-4-2.

The RClamp0531T is in a 2-pin SLP1006P2T package

measuring 1.0 x 0.6 x 0.4mm. The leads are spaced

at a pitch of 0.65mm and feature a lead-free finish. Each

device will protect one high-speed line operating at 5 volts.

It gives the designer the flexibility to protect single lines in

applications where arrays are not practi-cal. The

combination of small size, low capacitance, and high ESD

surge capability makes them ideal for

use in applications such as cellular phones and digital

video interfaces.

特性 Features

Transient protection for data lines to

IEC 61000-4-2 (ESD) ±20kV (air), ±12kV (contact)

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

Cable Discharge Event (CDE)

Ultra-small package (1.0 x 0.6 x 0.4mm)

Protects one I/O line

Low capacitance: 0.8pF

Low clamping voltage

Low operating voltage: 5.0V

Solid-state silicon-avalanche technology

Applications

Cellular Handsets & Accessories

Digital Visual Interface (DVI)

FM Antenna

MDDI Ports

USB Ports

PCI Express

Serial ATA