RClamp3344T
Low Voltage RailClamp®
4-Line ESD Protection
PROTECTION PRODUCTS - RailClamp®
Features
Description
RClamp®3344T is a low voltage RailClamp which can
provide ESD protection to IEC 61000-4-2 on high-
speed ports. It is manufactured using Semtech's
proprietary low voltage technology, designed to mini-
mize both the ESD peak clamping and TLP clamping
voltage. These devices “snap-back” to a low on-state
voltage when the breakdown voltage of the device is
exceeded. This has the advantage of lowering the
overall ESD clamping voltage. When the device is in
the on-state, the dynamic resistance is typically 0.30
Ohms, further minimizing the ESD clamping. Maximum
capacitance is only 0.35pF allowing the RClamp3344T
to be used in applications operating in excess of 6GHz
without appreciable signal attenuation. Each device
will protect four lines operating at 3.3 volts.
High ESD withstand Voltage: +/-17kV (Contact),
+/-20kV (Air) per IEC 61000-4-2
Package design optimized for high speed lines
Protects four high-speed lines
Flow-Through design
Low capacitance: 0.35pF Maximum
Dynamic Resistance: 0.30 Ohms Typical
Low ESD clamping voltage
Operating voltage: 3.3V
Solid-state silicon-avalanche technology
Mechanical Characteristics
SLP1308N5T 5-pin package (1.3 x 0.8 x 0.40mm)
Pb-Free, Halogen Free, RoHS/WEEE Compliant
Lead finish: NiPdAu
Marking: Marking Code
Packaging: Tape and Reel
RClamp3344T is in a 5-pin SLP1308N5T package. It
measures 1.3 x 0.8mm with a nominal height of 0.40mm.
The innovative flow through package design simplifies
pcb layout and allows matched trace lengths for
consistant impedance between high speed differential
lines.
Applications
USB 3.0
V-By-One
The combination of low peak ESD clamping, low dynamic
resistance, and innovative package design enables this LVDS
device to provide the highest level of ESD protection for
applications such as USB 3.0, MIPI/MDDI, and LVDS
lines.
MIPI/MDDI
MyDP
Dimensions
Schematic & PIN Configuration
1.30
0.45 BSC
1
2
0.80
0.50 BSC
1
3
4
5
2
0.40
Nominal Dimensions (mm)
4-Line, Bidirectional
www.semtech.com
Revision 04/24/2014
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