SRDA05-4 Semtech, SRDA05-4 Datasheet

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SRDA05-4

Manufacturer Part Number
SRDA05-4
Description
Manufacturer
Semtech
Datasheet

Specifications of SRDA05-4

Number Of Elements
1
Polarity
Uni-Directional
Package Type
SOP
Operating Temperature Classification
Military
Reverse Breakdown Voltage
6V
Clamping Voltage
20V
Reverse Stand-off Voltage
5V
Leakage Current (max)
10uA
Peak Pulse Current
25A
Peak Pulse Power Dissipation
500W
Test Current (it)
1mA
Operating Temp Range
-55C to 125C
Mounting
Surface Mount
Pin Count
8
Lead Free Status / Rohs Status
Not Compliant

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Company
Part Number
Manufacturer
Quantity
Price
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SRDA05-4
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Manufacturer:
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RailClamps are surge rated diode arrays designed to
protect high speed data interfaces. The SRDA series
has been specifically designed to protect sensitive
components which are connected to data and trans-
mission lines from overvoltage caused by electrostatic
discharge (ESD), electrical fast transients (EFT), and
lightning.
The unique design incorporates surge rated, low
capacitance steering diodes and a TVS diode in a
single package. During transient conditions, the
steering diodes direct the transient current to ground
via the internal low voltage TVS. The TVS diode clamps
the transient voltage to a safe level. The low capaci-
tance array configuration allows the user to protect up
to four high-speed data lines. The SRDA05-4 may be
used to protect lines operating up to 5 volts while the
SRDA12-4 may be used on lines operating up to 12
volts.
These devices are in a 8-pin SOIC package. They are
available with a SnPb or RoHS/WEEE compliant matte
tin lead finish. The high surge capability (Ipp=25A,
tp=8/20μs) means it can be used in high threat
environments in applications such as CO/CPE equip-
ment, telecommunication lines, and video lines.
Revision 8/21/07
PROTECTION PRODUCTS
PROTECTION PRODUCTS - RailClamp
REF1
Description
Circuit Diagram
I/O 1
I/O 2
REF2
I/O 3
I/O 4
® ® ® ® ®
1
Low Capacitance TVS Diode Array
Features
Mechanical Characteristics
Applications
Schematic and PIN Configuration
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 four I/O lines
Low capacitance (<15pF) for high-speed interfaces
Low operating and clamping voltages
Solid-state technology
JEDEC SOIC-8 package
Lead Finish: SnPb or Matte Sn
Molding compound flammability rating: UL 94V-0
Marking : Part number, date code, logo
Packaging : Tape and Reel per EIA 481
USB Power and Data Line Protection
T1/E1 secondary IC Side Protection
T3/E3 secondary IC Side Protection
HDSL, SDSL secondary IC Side Protection
Video Line Protection
Microcontroller Input Protection
Base stations
I
2
REF 1
REF 1
C Bus Protection
I/O 1
I/O 2
SRDA05-4 and SRDA12-4
1
2
3
4
S0-8 (Top View)
RailClamp
www.semtech.com
8
7
6
5
I/O 3
REF 2
REF 2
I/O 4
® ® ® ® ®

SRDA05-4 Summary of contents

Page 1

... TVS. The TVS diode clamps the transient voltage to a safe level. The low capaci- tance array configuration allows the user to protect up to four high-speed data lines. The SRDA05-4 may be used to protect lines operating volts while the SRDA12-4 may be used on lines operating volts ...

Page 2

... PROTECTION PRODUCTS PROTECTION PRODUCTS Absolute Maximum Rating μ Electrical Characteristics (T= © 2007 Semtech Corp. SRDA05-4 and SRDA12 μ ° μ μ μ μ www.semtech.com ° C ° C ° μ ...

Page 3

... PROTECTION PRODUCTS PROTECTION PRODUCTS Electrical Characteristics (continued © 2007 Semtech Corp. SRDA05-4 and SRDA12 ° μ μ μ μ www.semtech.com μ ...

Page 4

... (µs) Variation of Capacitance vs. Reverse Voltage 1.04 1.02 1 0.98 0.96 0.94 0.92 0.9 0.88 0 0.5 1 1.5 2 Reverse Voltage - VR (V) © 2007 Semtech Corp. SRDA05-4 and SRDA12-4 110 100 100 1000 (µs) p Clamping Voltage vs. Peak Pulse Current 22 W aveform Parameters 8µ 20µ Forward Voltage vs ...

Page 5

... V F For negative events, the bottom diode will be biased © 2007 Semtech Corp. SRDA05-4 and SRDA12-4 Data Line and Power Supply Protection Using Vcc as reference ) the F Data Line Protection with Bias and Power Supply Isolation Resistor ) ...

Page 6

... Semtech Corp. of the diode. At first Figure 1 - “Rail-To-Rail” Protection Topology (First Approximation 30V -9 Figure 2 - The Effects of Parasitic Inductance When Using Discrete Components to Implement Rail-To-Rail Protection Figure 3 - Rail-To-Rail Protection Using RailClamp TVS Arrays 6 SRDA05-4 and SRDA12-4 www.semtech.com ...

Page 7

... F(RailClamp) TVS This is given in the data sheet as the rated clamping voltage of the device. For an SRDA05-4 the typical clamping voltage is <16V at I =30A. The diodes PP internal to the RailClamp are low capacitance, fast switching devices that are rated to handle high tran- sient currents and maintain excellent forward voltage characteristics ...

Page 8

... PROTECTION PRODUCTS PROTECTION PRODUCTS Typical Applications © 2007 Semtech Corp. SRDA05-4 and SRDA12-4 Universal Serial Bus ESD Protection 8 5 SRDA05 T1/E1 Interface Protection 8 LC01-6 LC01-6 www.semtech.com ...

Page 9

... PROTECTION PRODUCTS PROTECTION PRODUCTS Applications Information - Spice Model © 2007 Semtech Corp. SRDA05-4 and SRDA12-4 Pin 3 Pin 1 0.6 nH Pin 8 SRDA05-4 & SRDA12-4 Spice Model & www.semtech.com ...

Page 10

... REFERENCE JEDEC STD MS-012, VARIATION AA. Land Pattern - SO-8 (C) NOTES: 1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. 2. REFERENCE IPC-SM-782A, RLP NO. 300A. © 2007 Semtech Corp. SRDA05-4 and SRDA12 GAGE PLANE 0. (L1) A ...

Page 11

... Semtech Corp. Ordering Information PHIL Note: Lead-free devices are RoHS/WEEE Compliant ± ± ± Semtech Corporation Protection Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804 11 SRDA05-4 and SRDA12 Pin 1 Location User Direction of feed Device Orientation in Tape ± ...

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