RClamp3522T
Ultra-Low Capacitance
2-Line, 3.5V ESD protection
PRELIMINARY
PROTECTION PRODUCTS - RailClamp®
Features
Description
RClamp®3522T provides ESD protection for USB3.0
and other high-speed ports. It may be used to meet
the ESD immunity requirements of IEC 61000-4-2.
RClamp3522T is designed to minimize both the ESD
peak clamping and the TLP clamping. The dynamic
resistance is minimized (0.47 Ohms typical) for opti-
mum protection of sensitive circuits. Maximum capaci-
tance is only 0.40pF. This allows the RClamp3522T to
be used in applications operating in excess of 6GHz
without appreciable signal attenuation. These devices
are manufactured using Semtech’s proprietary low
voltage technology for superior electrical characteritics.
Transient protection for data lines to
IEC 61000-4-2 (ESD) ±15kV (air), ±12kV (contact)
IEC 61000-4-4 (EFT) 40A (tp = 5/50ns)
Cable Discharge Event (CDE)
Ultra-small package (1.0 x 0.6 x 0.5mm)
Protects up to two data lines
Low capacitance: 0.40pF
Dynamic Resistance: 0.47 Ohms Typical
Low ESD clamping voltage
Operating voltage: 3.5V
Solid-state silicon-avalanche technology
Mechanical Characteristics
SGP1006N3T package
RClamp3522T is in a 3-pin SGP1006N3T package. It
measures 1.0 x 0.6 mm with a nominal height of only
0.4mm. Leads are finished with lead-free NiPdAu. Each
device will protect two lines operating up to 3.5 volts.
Pb-Free, Halogen Free, RoHS/WEEE Compliant
Nominal Dimensions: 1.0 x 0.6 x 0.40 mm
Lead Finish: NiPdAu
Molding compound flammability rating: UL 94V-0
Marking : Marking code + dot matrix date code
Packaging : Tape and Reel
The combination of low peak ESD clamping, low dynamic
resistance, and low capacitance makes this device suit-
able for applications such as USB 3.0, audio and V-By-
One interfaces in portable devices.
Applications
USB 2.0 / USB 3.0
V-By-One
Display Port
MHL / MDDI
LVDS Interfaces
eSATA Interfaces
Dimensions
Schematic & Pin Configuration
1
2
1.00
0.68
1
2
0.60
0.40
3
Nominal Dimensions (mm)
2-Line Bidirectional
www.semtech.com
Revision11/6/2014
1