Description

The ClampTM series of Transient Voltage Suppressors

(TVS) are designed to replace multilayer varistors

(MLVs) in portable applications such as cell phones, notebook

computers, and PDAs. They offer superior

electrical characteristics such as lower clamping

voltage and no device degradation when compared to

MLVs. They are are designed to protect sensitive

semiconductor components from damage or upset due

to electrostatic discharge (ESD), lightning, electrical

fast transients (EFT), and cable discharge events

(CDE).

The UClamp3301D is constructed using proprietary

EPD process technology.

The EPD process provides low standoff voltages with

significant reduc-tions in leakage currents and capacitance

over silicon-avalanche diode processes. They feature

a true operating voltage of 3.3 volts for superior

protection when compared to traditional pn junction

devices.

The UClamp3301D is in a SOD-323 package and will

protect one unidirectional line. They give the designer

the flexibility to protect one line in applications where

arrays are not practical.

They may be used to meet the ESD immunity requirements

of IEC 61000-4-2, Level 4 (±15kV air, ±8kV

contact discharge).

100 Watts peak pulse power (tp = 8/20μs)

Transient protection for data lines to

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

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

IEC 61000-4-5 (Lightning) 10A (tp = 8/20μs)

Small package for use in portable electronics

Suitable replacement for MLVs in ESD protection

applications

Protects one line

Low clamping voltage

Working voltages: 3.3V

Low leakage current

Solid-state silicon-avalanche technology

Features

Applications

Cell Phone Handsets and Accessories

Laser Diode Protection

Notebooks, Desktops, & Servers

Portable Instrumentation

Analog Inputs