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uClamp3301H
Low Voltage μ Clamp TM
for ESD and CDE Protection
The μ Clamp series of Transient Voltage Suppressors
PROTECTION PRODUCTS -MicroClamp ?
Description
?
(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 designed to protect sensitive semicon-
ductor components from damage or upset due to
electrostatic discharge (ESD), lightning, electrical fast
transients (EFT), and cable discharge events (CDE).
The μ Clamp ? 3301H 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.
The μ Clamp3301H is in a 2-pin SOD-523 package.
Each device will protect one unidirectional line operat-
ing at 3.3 volts. 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.
Dimensions
1.70
PRELIMINARY
Features
Transient protection for data lines to
IEC 61000-4-2 (ESD) ±30kV (air), ±30kV (contact)
IEC 61000-4-4 (EFT) 40A (tp = 5/50ns)
Cable Discharge Event (CDE)
Small SOD-523 package
Protects one data line
Low clamping voltage
Working voltage: 3.3V
Low leakage current
Solid-state silicon-avalanche technology
Mechanical Characteristics
EIAJ SOD-523 package
Pb-Free, Halogen Free, RoHS/WEEE Compliant
Molding compound flammability rating: UL 94V-0
Nominal Dimensions: 1.7 x 0.9 x 0.7mm
Marking : Marking code, cathode band
Packaging: Tape and Reel
Lead Finish: Matte tin
Applications
Cellular Handsets & Accessories
Notebooks & Handhelds
Portable Instrumentation
Keypads, Side Keys, LCD Displays
Notebooks & Desktop Computers
Digital Cameras
MP3 Players
Schematic & Pin Configuration
0.35
1.30
0.9
0.70
Nominal Dimensions (mm)
SOD-523 (Top View)
Revision 11/13/2012
1
www.semtech.com
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