µClamp
TM
1-Line ESD protection
PROTECTION PRODUCTS - MicroClamp
Description
The
µClamp
TM
series of TVS arrays are designed to protect
sensitive electronics from damage or latch-up due to ESD.
It is designed to replace multilayer varistors (MLVs) in por-
table applications such as cell phones, notebook comput-
ers, and PDA’s. It features large cross-sectional area junc-
tions for conducting high transient currents. It offers su-
perior electrical characteristics such as lower clamping volt-
age and no device degradation when compared to MLVs.
They offer desirable characteristics for board level protec-
tion including fast response time, low operating and clamp-
ing voltage, and no device degradation.
The
µclamp
TM
0501H is in a ultra-small SOD-523 pack-
age ideal for use in portable electronics such as cell
phones, PDA’s, notebook computers, and digital
cameras. It will protect one unidirectional line operat-
ing at 5 volts. It gives the designer the flexibility to
protect one line in applications where arrays are not
practical. Additionally, it may be “sprinkled” around the
board in applications where board space is at a pre-
mium.
This device may be used to meet the ESD immunity
requirements of IEC 61000-4-2, Level 4 (15kV air, 8kV
contact discharge).
uClamp0501H
Features
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Transient protection for data lines to
IEC 61000-4-2 (ESD) 15kV (air), 8kV (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: 5V
Low leakage current
Solid-state silicon-avalanche technology
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Mechanical Characteristics
EIAJ SOD-523 package
Molding compound flammability rating: UL 94V-0
Marking : Marking code, cathode band
Packaging : Tape and Reel per EIA 481
Lead Finish: Matte tin
Cellular Handsets & Accessories
Cordless Phones
Personal Digital Assistants (PDA’s)
Notebooks & Handhelds
Portable Instrumentation
Digital Cameras
Peripherals
MP3 Players
Applications
Dimensions
1.70
1.30
0.9
Schematic & PIN Configuration
0.35
0.70
Maximum Dimensions (mm)
Revision 10/08/2003
1
SOD-523 (Top View)
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SEMTECH [ SEMTECH CORPORATION ]
