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www.semtech.com
RClamp2504N & RClamp3304N
RailClamp
®®
®®
®
2.5V & 3.3V TVS Arrays
PROTECTION PRODUCTS - RailClamp
®®
®®
®
Description
Features
Circuit Diagram Package Configuration
Revision 04/07/2009
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 ESD (electrostatic
discharge), CDE (Cable Discharge Events), and Light-
ning.
The unique design incorporates surge rated, low
capacitance 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 low capacitance array configuration
allows the user to protect up to four high-speed data
lines.
The RClamp
®
3304N and RClamp
®
2504N are con-
structed using Semtech’s proprietary EPD process
technology. The EPD process provides low stand-off
voltages with significant reductions in leakage current
and capacitance over silicon-avalanche diode pro-
cesses. They feature a true operating voltage of 2.5
volts and 3.3 volts for superior protection.
These devices are in a 10-pin, RoHS/WEEE compliant,
SLP2626P10 package. It measures 2.6 x 2.6 x
0.60mm. The leads are spaced at a pitch of 0.5mm
and are finished with lead-free NiPdAu. The high surge
capability (Ipp=25A, tp=8/20μs) means it can be used
in high threat environments in applications such as
Gigabit Ethernet, telecommunication lines, and digital
video.
Applications
Mechanical Characteristics
USB 2.0
10/100/1000 Ethernet
Digital Visual Interface (DVI)
T1/E1 Secondary Protection
T3/E3 Secondary Protection
Analog Video
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)
IEC 61000-4-5 (Lightning) 25A (8/20μs)
Array of surge rated diodes with internal TVS Diode
Small package saves board space
Protects up to four I/O lines
Low capacitance (<5pF) for high-speed interfaces
Low leakage current and clamping voltage
Low operating voltage: 2.5V and 3.3V
Solid-state silicon-avalanche technology
SLP2626P10 10L package
RoHS/WEEE Compliant
Nominal Dimensions: 2.6 x 2.6 x 0.60 mm
Lead Finish: NiPdAu
Molding compound flammability rating: UL 94V-0
Marking : Marking Code + Date Code
Packaging : Tape and Reel
Pin 5
Pin 1 Pin 9 Pin 3 Pin 7
Gnd
2.60
2.60
C
L
C
L
12
0.50 BSC
0.60
