PROTECTION PRODUCTS
1
www.semtech.com
PRELIMINARY
PROTECTION PRODUCTS - EMIClamp
TM
EClamp1002A
ESD/EMI Protection
for Speaker Ports
Description
Revision 01/12/2006
Schematic & Pin Configuration
Dimensions
Features
The EClamp
TM
1002A is a low pass filter array with
integrated TVS diodes for ESD protection. It is de-
signed to provide bidirectional filtering of EMI/RFI
signals and electrostatic discharge (ESD) protection in
portable electronic equipment. This state-of-the-art
device utilizes solid-state silicon-avalanche technology
for superior clamping performance and DC electrical
characteristics. They have been optimized for use on a
speaker port in cellular phones and other portable
electronics.
The EClamp1002A effectively replaces 10 discrete
components in a small SC-89 package to provide ESD
protection and EMI filtering. Each device requires less
than 2.9mm
2
of PCB area with a low profile of only
0.60mm. This small package will protect and filter up
to two lines. This small outline makes the device
especially well suited for portable applications.
The TVS diodes are bidirectional for supporting bipolar
audio signals without distortion. The TVS diodes provide
effective suppression of ESD voltages in excess of 15kV
(air discharge) and 8kV (contact discharge) per IEC 61000-
4-2, level 4. The device has very low insertion loss in the
pass band (to approximately 10MHz) and high attenua-
tion at frequencies ranging from 800MHz to 3GHz. Each
line features two stages of TVS diode protection. They
feature large cross-sectional area junctions for conducting
high transient currents. They offer desirable characteris-
tics for board level protection including fast response time,
low operating and clamping voltage, and no device degra-
dation.
Applications
Mechanical Characteristics
Cellular Handsets & Accessories
Cordless Phones
Personal Digital Assistants (PDAs)
Webpads & Handhelds
Notebook
Portable Instrumentation
MP3 Players
Transient protection for data lines to
IEC 61000-4-2 (ESD) 15kV (air), 8kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
Bidirectional EMI/RFI filter with integrated ESD
protection
Protects two I/O lines
Ultra-small SC-89 package (
1.7 x 1.7 x 0.6mm1.7 x 1.7 x 0.6mm
1.7 x 1.7 x 0.6mm1.7 x 1.7 x 0.6mm
1.7 x 1.7 x 0.6mm)
requires less than 2.9mm
2
of PCB area
Working voltage: 5V
Low leakage current
Low operating and clamping voltages
Solid-state silicon-avalanche technology
SC-89 (SOT-666) package
RoHS/WEEE Compliant
Lead Finish: Matte Tin
Molding compound flammability rating: UL 94V-0
Marking : Marking Code
Weight: 2.9mg (typical)
Packaging : Tape and Reel per EIA 481
0.60
1.70
1.701.25
0.30
0.50
SC-89 (Top View)
