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SRDA70-4 Datasheet Preview

SRDA70-4 Datasheet

Low Capacitance TVS Diode Array

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PROTECTION PRODUCTS
Description
SRDA70-4
RailClamp
Low Capacitance TVS Diode Array
Features
RailClamps are surge rated diode arrays designed to
protect high speed data interfaces. The SRDA70-4 has
been specifically designed to protect sensitive compo-
nents which are connected to data and transmission
lines from over-voltages caused by electrostatic dis-
charge (ESD), electrical fast transients (EFT), and
lightning.
The unique design of the SRDA70-4 integrates eight
surge rated, low capacitance steering diodes in a low
profile SO-8 package. During transient conditions, the
steering diodes direct the transient to either the
positive side of the power supply line or to ground. The
SRDA70-4 may be used as a stand alone device or in
conjunction with TVS diodes for enhanced protection.
The low capacitance array configuration allows the user
to protect four high speed data or I/O lines. The low
inductance construction minimizes voltage overshoot
during high current surges.
‹ 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) 1kV, 24A (8/20µs)
‹ Array of surge rated diodes
‹ Protects four I/O lines
‹ Low capacitance for high-speed interfaces
‹ High surge capability
‹ Low forward voltage characteristics
‹ Solid-state silicon avalanche technology
Mechanical Characteristics
‹ JEDEC SO-8 package
‹ UL 497B listed
‹ Molding compound flammability rating: UL 94V-0
‹ Marking : Part number, date code, logo
‹ Packaging : Tube or Tape and Reel per EIA 481
‹ RoHS/WEEE Compliant
Applications
‹ Latch-Up Protection
‹ Microcontroller Input Protection
‹ Token Ring
‹ I2C Bus Protection
‹ Video Line Protection
‹ Set Top Box I/O
‹ LAN/WAN Equipment
Circuit Diagram
Schematic and PIN Configuration
REF 1
I/O 1
I/O 2
I/O 3
I/O 4
REF 2
I/O 1 1
REF 1 2
REF 1 3
I/O 2 4
Revision 08/15/06
1
8 REF 2
7 I/O 4
6 I/O 3
SO-8 (Top View)
5 REF 2
www.semtech.com




Semtech

SRDA70-4 Datasheet Preview

SRDA70-4 Datasheet

Low Capacitance TVS Diode Array

No Preview Available !

SRDA70-4
PROTECTION PRODUCTS
Absolute Maximum Rating
Rating
Peak Pulse Current (tp = 8/20µs)
Rectifier Repetitive Peak Reverse Voltage
Thermal Resistance, Junction to Ambient
Thermal Resistance, Junction to Case
Lead Soldering Temperature
Operating Temperature
Storage Temperature
Electrical Characteristics
SRDA70-4
Parameter
Rectifier Repetitive Peak reverse
Voltage
Reverse Breakdown Voltage
Reverse Leakage Current
Forward Voltage
Forward Voltage
Junction Capacitance
Symbol
VRRM
VBR
IR
VF
VF
Cj
Symbol
IPP
VRRM
θJA
θJC
TL
TJ
TSTG
Value
24
70
163
38.8
260 (10 sec.)
-55 to +125
-55 to +150
Units
A
V
°C /W
°C /W
°C
°C
°C
Conditions
Minimum
Typical
Maximum
70
Units
V
It = 50µA
85
V
VRWM = 70V, T=25°C
5 µA
IPP = 1A, tp = 8/20µs
1.3 V
IPP = 10A, tp = 8/20µs
3.3 V
Between I/O pins and
Ground
VR = 0V, f = 1MHz
15 pF
Between I/O pins 4 pF
VR = 0V, f = 1MHz
2006 Semtech Corp.
2
www.semtech.com


Part Number SRDA70-4
Description Low Capacitance TVS Diode Array
Maker Semtech
Total Page 7 Pages
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