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| 型号： | SR2.8TG |
| 厂商： | Semtech Corporation |
| 英文描述： | RailClamp Low Capacitance TVS Diode Array |
| 中文描述： | RailClamp低电容二极管二极管阵列 |
| 文件页数： | 1/8页 |
| 文件大小： | 103K |
| 代理商： | SR2.8TG |
1
www.semtech.com
PROTECTION PRODUCTS
Description
SR2.8
RailClamp
Low Capacitance TVS Diode Array
Features
!
ESD protection to
IEC 61000-4-2, Level 4
!
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 (< 1μA)
!
Low operating voltage: 2.8V
!
Solid-state technology
Circuit Diagram
Schematic & PIN Configuration
Revision 9/2000
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
ESD
(electrostatic
discharge),
EFT
(electrical fast transients), 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 characteristics 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
!
10/100 Ethernet
!
Firewire
!
Sensitive Analog Inputs
!
Video Line Protection
!
Portable Electronics
!
Microcontroller Input Protection
!
WAN/LAN Equipment
Mechanical Characteristics
!
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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