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RCLAMP0502B Datasheet, PDF (1/9 Pages) Semtech Corporation – Ultra-Low Capacitance TVS for ESD and CDE Protection | |||
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PROTECTION PRODUCTS - RailClampï
Description
RailClamps are ultra low capacitance TVS arrays
designed to protect high speed data interfaces. This
series has been specifically designed to protect sensi-
tive components which are connected to high-speed
data and transmission lines from overvoltage caused
by ESD (electrostatic discharge), CDE (Cable Discharge
Events), and EFT (electrical fast transients).
The RClampTM0502B has a typical capacitance of only
0.50pF (pin 1 to 2). This means it can be used on
circuits operating in excess of 3GHz without signal
attenuation. They may be used to meet the ESD
immunity requirements of IEC 61000-4-2, Level 4
(±15kV air, ±8kV contact discharge). Each device can
be configured to protect 1 bidirectional line or two
unidirectional lines.
These devices are in a small SC-75 (SOT-523) package
and feature a lead-free, matte tin finish. They are com-
patible with both lead free and SnPb assembly tech-
niques. They are designed for use in applications where
board space is at a premium. The combination of small
size, low capacitance, and high level of ESD protection
makes them a flexible solution for applications such as
HDMI, MDDI, antenna circuits, Automatic Test Equipment,
USB 2.0, and Infiniband circuits.
RClamp0502B
Ultra-Low Capacitance TVS
for ESD and CDE Protection
Features
 Transient protection for high-speed data lines to
IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
 Designed to replace polymer TVS
 Protects up to two I/O lines
 Ultra-Low capacitance (<1pF)
 No insertion loss to >3.0GHz
 Low profile (<1mm)
 Low leakage current and clamping voltage
 Low operating voltage: 5.0V
 Solid-state silicon-avalanche technology
Mechanical Characteristics
 SC-75 (SOT-523) package
 Lead Finish: Matte Tin
 RoHS/WEEE Compliant
 Molding compound flammability rating: UL 94V-0
 Marking: P5
 Packaging: Tape and Reel per EIA 481
Applications
 High-Definition Multimedia Interface (HDMI)
 Mobile Display Digital Interface (MDDI)
 RF/Antenna Circuits
 USB 2.0 & Firewire Ports
 GaAs Photodetector Protection
 HBT Power Amp Protection
 Infiniband Transceiver Protection
Dimensions
Schematic & PIN Configuration
1.60
3
0.50 BSC
0.80 1.60
1
2
1.00
BSC
0.75
Nominal Dimensions (mm)
Revision 04/05/2005
1
SC-75 3L (Top View)
www.semtech.com
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