RClamp0554S
RailClamp®
Low Capacitance TVS Diode Array
PROTECTION PRODUCTS - RailClamp®
Features
Description
A RailClamp® is a low capacitance TVS array designed
to protect high speed data interfaces. This series has
been specifically designed to protect sensitive compo-
nents which are connected to data and transmission
lines from overvoltage caused by electrostatic dis-
charge (ESD), electrical fast transients (EFT), and
lightning.
ESD protection for high-speed data lines to
IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
IEC 61000-4-5 (Lightning) 25A (8/20μs)
Array of surge rated diodes with internal TVS Diode
Small package saves board space
Protects four I/O lines and Voltage Bus
Low capacitance: 5pF (VR=0V)
The unique design incorporates eight surge rated, low
capacitance steering diodes and a TVS diode in a
single package. During transient conditions, the
steering diodes direct the transient to either the
positive side of the power supply line or to ground. The
internal TVS diode prevents over-voltage on the power
line, protecting any downstream components.
Low clamping voltage
Low operating voltage: 5.0V
Solid-state silicon-avalanche technology
Mechanical Characteristics
JEDEC SOT-23 6L package
The RClamp®0554S is in a 6-lead SOT-23 package.
The leads are finished with lead-free matte tin. Each
device will protect up to four high-speed lines. They
may be used to meet the ESD immunity requirements
of IEC 61000-4-2, Level 4 (15kV air, 8kV contact
discharge). The combination of small size, low capaci-
tance, and high surge capability makes them ideal for
use in applications such as 10/100 Ethernet, USB 2.0,
and video interfaces.
Pb-Free, Halogen Free, RoHS/WEEE Compliant
Molding compound flammability rating: UL 94V-0
Marking : Marking code + date code
Packaging : Tape and Reel
Applications
USB 2.0 Power and Data Line Protection
Video Graphics Cards
Monitors and Flat Panel Displays
Digital Video Interface (DVI)
Notebook Computers
IEEE 1394 Firewire Ports
Circuit Diagram
Schematic and PIN Configuration
5
1
3
4
6
2
SOT-23 6L (Top View)
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Revision 10/21/2009
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