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uClamp0501H
μ Clamp TM
1-Line ESD protection
PROTECTION PRODUCTS - MicroClamp
The μ Clamp series of TVS arrays are designed to protect
Description
TM
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 μ clamp 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.
Features
! 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
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
Applications
This device may be used to meet the ESD immunity
requirements of IEC 61000-4-2, Level 4 (15kV air, 8kV
contact discharge).
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Cellular Handsets & Accessories
Cordless Phones
Personal Digital Assistants (PDA’s)
Notebooks & Handhelds
Portable Instrumentation
Digital Cameras
Peripherals
MP3 Players
Dimensions
0.35
1.70
1.30
0.9
0.70
Schematic & PIN Configuration
Maximum Dimensions (mm)
SOD-523 (Top View)
Revision 10/08/2003
1
www.semtech.com
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