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PROTECTION PRODUCTS
RClamp0524S
RailClamp
®®
®®
®
Low Capacitance TVS Diode Array
Description
Features
Package Dimensions Equivalent Circuit and PIN Configuration
Revision 04/24/2008
RailClamps
®
are low capacitance TVS arrays 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 ESD (electrostatic
discharge), CDE (Cable Discharge Events), and EFT
(electrical fast transients).
The unique design incorporates two identical circuits.
Each circuit is comprised of surge rated, low capaci-
tance steering diodes and a TVS diode in a single
package. During transient conditions, the steering
diodes direct the transient current to ground. The
internal TVS diode clamps the transient voltage to a
safe level. The RClamp0524S has a low maximum
capacitance of only 5pF per line. Each device will
protect up to four data lines. The dual circuits make it
ideal for applications like power over Ethernet (PoE)
where each signal pair sits at a different potential.
The RClamp
TM
0524S is in a 6-pin, RoHS/WEEE compli-
ant, SOT-23 package. The leads are finished with lead-
free matte tin. They may be used to meet the ESD
immunity requirements of IEC 61000-4-2, Level 4
(±15kV air, ±8kV contact discharge).
Applications
Mechanical Characteristics
PoE
Monitors and Flat Panel Displays
Digital Video Interface (DVI)
10/100/1000 Ethernet
Notebook Computers
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)
Array of surge rated diodes with internal TVS Diode
Small package saves board space
Protects four I/O lines
Low capacitance: 5pF maximum
Low clamping voltage
Low operating voltage: 5.0V
Solid-state silicon-avalanche technology
JEDEC SOT-23 6L package
Molding compound flammability rating: UL 94V-0
Marking : S05
Packaging : Tape and Reel
RoHS/WEEE Compliant
SOT-23 6L (Top View)
6 Pin SOT-23 package
Nominal Dimensions in mm
12
2.8
1.0
2.9
1.6
