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Número de pieza | RClamp1851ZA | |
Descripción | 18V ESD Protection | |
Fabricantes | Semtech | |
Logotipo | ||
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No Preview Available ! PROTECTION PRODUCTS - RailClamp®
Description
RClamp® TVS diodes are designed to protect sensitive
electronics from damage or latch-up due to ESD. They
are designed to replace multilayer 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 clamp-
ing voltage, and no device degradation.
RClamp®1851ZA is specifically designed for protection of
Near Field Communications (NFC) interfaces. It features
extremely good ESD protection characteristics includ-
ing a low typical dynamic resistance of 0.16 Ohms, low
peak ESD clamping voltage, and high ESD withstand
voltage (+/-17kV contact per IEC 61000-4-2). Low typi-
cal capacitance (0.35pF at VR=0V) means that harmon-
ic distortion the the RF signal is minimized. This device
is bidirectional and has a working voltage of 18V for use
on NFC resonator circuits without signal clipping.
RClamp1851ZA
Ultra Small RClamp®
1-Line, 18V ESD Protection
Features
High ESD withstand Voltage: +/-17kV (Contact) and
+/- 20kV (Air) per IEC 61000-4-2
Ultra-small package
Protects one high speed data line
Low ESD clamping voltage
Working voltage: 18V
Low capacitance: 0.35pF typical
Low leakage current
Extremely low dynamic resistance: 0.16 Ohms (Typ)
Solid-state silicon-avalanche technology
Mechanical Characteristics
SLP0603P2X3F 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
Packaging: Tape and Reel
RClamp1851ZA is in a 2-pin SLP0603P2X3F package
measuring 0.6 x 0.3 mm with a nominal height of only
0.25mm. Leads are finished with NiAu. The small pack-
age 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 tablet PC’s.
Applications
Near Field Communication (NFC) lines
RF signal lines
Cellular Handsets
Tablets
FM Antenna
Package Dimensions
0.220
0.600
0.300
Schematic & Pin Configuration
1
0.355 BSC
0.160
0.250
4/15/2015
Nominal Dimensions in mm
2
SLP0603P2X3F (Bottom View)
1 www.semtech.com
1 page PROTECTION PRODUCTS
Applications Information
Assembly Guidelines
The small size of this device means that some care must
be taken during the mounting process to insure reliable
solder joint. The table below provides Semtech’s recom-
mended assembly guidelines for mounting this device.
The figure at the right details Semtech’s recommended
aperture based on the below recommendations. Note
that these are only recommendations and should serve
only as a starting point for design since there are many
factors that affect the assembly process. The exact
manufacturing parameters will require some experimen-
tation to get the desired solder application.
Assembly Parameter
Solder Stencil Design
Aperture shape
Solder Stencil Thickness
Solder Paste Type
Solder Reflow Profile
PCB Solder Pad Design
PCB Pad Finish
Recommendation
Laser cut, Electro-polished
Rectangular with rounded
corners
0.100 mm (0.004")
Type 4 size sphere or smaller
Per JEDEC J-STD-020
Non-Solder mask defined
OSP OR NiAu
RClamp1851ZA
Stencil Aperture
Mounting Pad
Package
0.272
0.175
0.250
0.298
0.270
Recommended Mounting Pattern
2015 Semtech Corporation.
5
www.semtech.com
5 Page |
Páginas | Total 7 Páginas | |
PDF Descargar | [ Datasheet RClamp1851ZA.PDF ] |
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RClamp1851ZA | 18V ESD Protection | Semtech |
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