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SRDA3.3-6_10 Datasheet, PDF (1/9 Pages) Semtech Corporation – Low Capacitance TVS Diode Array | |||
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PROTECTION PRODUCTS
Description
RailClamps are surge rated diode arrays designed to
protect high speed data interfaces. The SR series has
been specifically designed to protect sensitive compo-
nents which are connected to data and transmission
lines from overvoltage caused by electrostatic dis-
charge (ESD), electrical fast transients (EFT), and
lightning.
The unique design of the SRDA series devices incorpo-
rates surge rated, low capacitance steering diodes and
a TVS diode in a single package. During transient
conditions, the steering diodes direct the transient to
either the positive side of the power supply line or to
ground. The internal TVS diode prevents over-voltage
on the power line, protecting any downstream compo-
nents.
The low capacitance array configuration allows the user
to protect six high-speed data or transmission lines.
The low inductance construction minimizes voltage
overshoot during high current surges.
SRDA3.3-6 and SRDA05-6
RailClamp®
Low Capacitance TVS Diode Array
Features
 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) 24A (8/20μs)
 Array of surge rated diodes with internal TVS diode
 Protects six I/O lines and power supply line
 Low capacitance (<15pF) for high-speed interfaces
 Low operating & clamping voltages
 Solid-state technology
Mechanical Characteristics
 JEDEC SO-8 package
 Pb-Free, Halogen Free, RoHS/WEEE Compliant
 Molding compound flammability rating: UL 94V-0
 Marking : Part number, date code, logo
 Packaging : Tape and Reel
Applications
 USB Power & Data Line Protection
 T1/E1 secondary IC Side Protection
 Token Ring
 HDSL, SDSL secondary IC Side Protection
 Video Line Protection
 Microcontroller Input Protection
 Base stations
 I2C Bus Protection
Circuit Diagram
Schematic and PIN Configuration
Revision 2/25/10
I/O 1 1
I/O 2 2
+VREF 3
I/O 3 4
8 GND
7 I/O 6
6 I/O 5
5 I/O 4
S0-8 (Top View)
1
www.semtech.com
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