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RCLAMP1821Z Datasheet, PDF (1/7 Pages) Semtech Corporation – Ultra Small RailClamp 1-Line ESD protection
PROTECTION PRODUCTS - Z-PakTM
Description
RailClamp® TVS arrays are ultra low capacitance ESD
protection devices designed to protect high speed data
interfaces. They are designed to replace 0201 size mul-
tilayer varistors (MLVs) in portable applications such as
cell phones, notebook computers, and other portable
electronics. This device offers desirable characteristics
for board level protection including fast response time,
low operating and clamping voltage, and no device deg-
radation.
RClamp®1821Z has a maximum capacitance of only
0.8pF. This allows it to be used on circuits operating in
excess of 3GHz without signal attenuation.
RClamp1821Z is in a 2-pin SLP0603P2X3B package.
It measures 0.6 x 0.3 mm with a nominal height of only
0.25mm. Leads are finished with lead-free NiAu. Each
device will protect one line operating at 18 volts. It
gives the designer the flexibility to protect single lines in
applications where arrays are not practical. The
combination of small size and high ESD surge capability
makes them ideal for use in portable applications such
as cellular phones, digital cameras, and MP3 players.
RClamp1821Z
Ultra Small RailClamp®
1-Line ESD protection
Features
 High ESD withstand Voltage: +/-15kV (Contact),
+/-18kV (Air) per IEC 61000-4-2
 Able to withstand over 1000 ESD strikes per IEC
61000-4-2 Level 4
 Ultra-small 0201 package
 Protects one data or power line
 Low reverse current: <5nA typical (VR=18V)
 Working voltage: +/- 18V
 Low capacitance: 0.8pF Maximum
 Solid-state silicon-avalanche technology
Mechanical Characteristics
 SLP0603P2X3B package
 Pb-Free, Halogen Free, RoHS/WEEE Compliant
 Nominal Dimensions: 0.6 x 0.3 x 0.25 mm
 Lead Finish: NiAu
 Marking : Marking code + dot matrix date code
 Packaging : Tape and Reel
Applications
 Cellular Handsets & Accessories
 Near Field Communication (NFC) lines
 RF signal lines
 FM Antenna
 Digital Lines
 USB VBus
Nominal Dimensions
0.62
0.32
0.22
0.400 BSC
0.250
Revision 1/7/2014
Schematic
1
2
SLP0603P2X3B (Bottom View)
1
www.semtech.com