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参数资料
| 型号： | SR2.8.TG |
| 元件分类： | TVS二极管 - 瞬态电压抑制 |
| 英文描述： | 200 W, UNIDIRECTIONAL, SILICON, TVS DIODE |
| 封装： | PLASTIC PACKAGE-4 |
| 文件页数： | 1/8页 |
| 文件大小： | 106K |
| 代理商： | SR2.8.TG |
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www.semtech.com
PROTECTION PRODUCTS
SR2.8
RailClamp
Low Capacitance TVS Diode Array
Description
Features
Circuit Diagram
Schematic & PIN Configuration
Revision 01/30/03
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
tertiary lightning.
The unique design of the SR series devices incorpo-
rates four surge rated, low capacitance steering
diodes, and a TVS diode in a single package. The TVS
diode is constructed using Semtech’s proprietary low
voltage EPD technology for superior electrical charac-
teristics at 2.8 volts.
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 pre-
vents over-voltage on the power line, protecting any
downstream components.
The low capacitance array configuration allows the user
to protect two high-speed data or transmission lines.
The low inductance construction minimizes voltage
overshoot during high current surges.
Applications
Mechanical Characteristics
10/100 Ethernet
Firewire
Sensitive Analog Inputs
Video Line Protection
Portable Electronics
Microcontroller Input Protection
WAN/LAN Equipment
ESD protection to
IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
Array of surge rated diodes with internal
EPD TVS
diode
Protects two I/O lines
Low capacitance (<10pF) for high-speed interfaces
Low leakage current (< 1A)
Low operating voltage: 2.8V
Solid-state technology
JEDEC SOT-143 package
Molding compound flammability rating: UL 94V-0
Marking : R2.8
Packaging : Tape and Reel per EIA 481
Pin 4
Pin 2
Pin 3
Pin 1
1
2
3
4
SOT-143 (Top View)
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