Low Capacitance TVS
for ESD and Surge Protection
PROTECTION PRODUCTS - RailClamp
®
Description
RailClamp
®
TVS diodes are specifically designed to
protect sensitive components which are connected to
high-speed data and transmission lines from overvolt-
age caused by ESD (electrostatic discharge), CDE
(cable discharge events), and EFT (electrical fast
transients).
The RClamp
®
0582B features high peak pulse current
capability (Ipp=15A, tp=8/20us) for use in applications
that require high surge immunity testing. It has a
maximum capacitance of only 1.2pF (pin 1 or 2 to
pin3). This means it can be used on high-speed inter-
faces such as USB 2.0 and LVDS data lines. They may
be used to meet the ESD immunity requirements of
IEC 61000-4-2 (±30kV air, ±25kV contact discharge).
Each device can be configured to protect 1 bidirec-
tional line or two unidirectional lines.
These devices are in a small SC-75 (SOT-523) package
and feature a lead-free, matte tin finish. They are com-
patible with both lead free and SnPb assembly tech-
niques. They are designed for use in applications where
board space is at a premium. The combination of small
size, low capacitance, and high level of surge protection
makes them a flexible solution for applications such as
set top boxes, displays, and portable electronics.
RClamp0582B
Features
Transient protection for high-speed data lines to
IEC 61000-4-2 (ESD) ±30kV (air), ±25kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
Protects up to two I/O lines
Low capacitance
(<1.2pF)
High surge capability:
15A (tp=8/20us)
Low leakage current and clamping voltage
Low operating voltage: 5.0V
Solid-state silicon-avalanche technology
Mechanical Characteristics
SC-75 (SOT-523) package
Lead Finish: Matte Tin
Pb-Free, Halogen Free, RoHS/WEEE Compliant
Molding compound flammability rating: UL 94V-0
Packaging: Tape and Reel
Applications
USB 2.0
Set Top Box
mp3 Players
Notebook Computers
Networking Equipment
Dimensions
1.60
0.50 BSC
Schematic & PIN Configuration
3
1.60
0.80
1
1.00
BSC
2
0.75
Nominal Dimensions (mm)
Revision 10/13/2010
1
SC-75 3L (Top View)
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