uClamp3301D
Low Voltage µClampTM
for ESD and CDE Protection
PROTECTION PRODUCTS - MicroClampTM
Features
Description
The µClampTM 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).
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
The µClampTM3301D is constructed using Semtech’s
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.
Solid-state silicon-avalanche technology
Mechanical Characteristics
EIAJ SOD-323 package
Molding compound flammability rating: UL 94V-0
Marking: Marking code, cathode band
Packaging: Tape and Reel
The µClamp3301D 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.
Lead Finish: Matte tin
RoHS/WEEE Compliant
They may be used to meet the ESD immunity require-
ments of IEC 61000-4-2, Level 4 (±15kV air, ±8kV
contact discharge).
Applications
Cell Phone Handsets and Accessories
Laser Diode Protection
Notebooks, Desktops, & Servers
Portable Instrumentation
Analog Inputs
Equivalent Circuit Diagram
Schematic & PIN Configuration
SOD-323 (Top View)
www.semtech.com
Revision 01/16/2008
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