UCLAMP3301H_08 Datasheet, PDF (1/7 Pages) Semtech Corporation – Low Voltage μClampTM for ESD and CDE Protection

PROTECTION PRODUCTS - MicroClamp^TM
Description
The μClamp^TM 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 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 μClamp^TM3301H 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 μClamp3301H is in a SOD-523 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 require-
ments of IEC 61000-4-2, Level 4 (±15kV air, ±8kV
contact discharge).
uClamp3301H
Low Voltage μClamp^TM
for ESD and CDE Protection
Features
‹ Transient protection for data lines to
IEC 61000-4-2 (ESD) ±20kV (air), ±10kV (contact)
IEC 61000-4-4 (EFT) 40A (tp = 5/50ns)
Cable Discharge Event (CDE)
‹ Ultra-small SOD-523 package (1.7 x 0.9 x 0.7mm)
‹ Protects one I/O or power line
‹ Low clamping voltage
‹ Working voltage: 3.3V
‹ Low leakage current
‹ Solid-state silicon-avalanche technology
Mechanical Characteristics
‹ EIAJ SOD-523 package
‹ Molding compound flammability rating: UL 94V-0
‹ Marking : Marking code, cathode band
‹ Packaging: Tape and Reel
‹ Lead Finish: Matte tin
Applications
‹ Cellular Handsets & Accessories
‹ Cordless Phones
‹ Personal Digital Assistants (PDAs)
‹ Notebooks & Handhelds
‹ Portable Instrumentation
‹ Digital Cameras
‹ Peripherals
‹ MP3 Players
Dimensions
Schematic & PIN Configuration
1.70
0.35 ^1.30
0.9
0.70
Maximum Dimensions (mm)
Revision 2/21/2008
1
SOD-523 (Top View)
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