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uClamp0504A
μ Clamp TM
4-Line ESD protection Array
PROTECTION PRODUCTS - MicroClamp TM
The μ Clamp series of TVS arrays are designed to pro-
requires less than 2.9mm of PCB area
Description
TM
tect sensitive electronics from damage or latch-up due
to ESD. They are designed for use in applications where
board space is at a premium. Each device requires less
than 2.9mm 2 of PCB area and will protect up to four
lines. They are unidirectional devices and may be used
on lines where the signal polarities are above ground.
TVS diodes are solid-state devices designed specifically
for transient suppression. They feature large cross-sec-
tional area junctions for conducting high transient cur-
rents. They offer desirable characteristics for board level
protection including fast response time, low operating
and clamping voltage, and no device degradation.
The uClamp TM 0504A may be used to meet the immunity
requirements of IEC 61000-4-2, level 4. The small SC-
89 package makes them ideal for use in portable elec-
tronics such as cell phones, PDA’s, notebook comput-
ers, and digital cameras. These devices feature a lead-
free, matte tin lead finish. They are compatible with both
lead free and SnPb assembly techniques.
Dimensions
1.70
0.50
Features
Transient protection for data lines to
IEC 61000-4-2 (ESD) 15kV (air), 8kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
Protects four I/O lines
Ultra-small SC-89 package (1.7 x 1.7 x 0.6mm)
2
Working voltage: 5V
Low leakage current
Low operating and clamping voltages
Solid-state silicon-avalanche technology
Mechanical Characteristics
SC-89 (SOT-666) package
Molding compound flammability rating: UL 94V-0
Marking : Marking Code
Weight: 2.9mg (typical)
Lead Finish: Matte Tin
Packaging : Tape and Reel per EIA 481
Applications
Cellular Handsets & Accessories
Cordless Phones
Personal Digital Assistants (PDA’s)
Notebooks & Handhelds
Portable Instrumentation
Digital Cameras
Peripherals
MP3 Players
Schematic & PIN Configuration
0.30
0.60
1.25
1.70
Maximum Dimensions (mm)
SC-89 (Top View)
Revision 06/23/2004
1
www.semtech.com
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