SRDA3.3-4.TBT Semtech, SRDA3.3-4.TBT Datasheet

SRDA3.3-4.TBT

Manufacturer Part Number

SRDA3.3-4.TBT

Description

IC TVS ARRAY 4-LINE 3.3V 8SOIC

Manufacturer

Semtech

Series

RailClamp®r

Datasheet

1.SRDA3.3-4.TBT.pdf (8 pages)

Specifications of SRDA3.3-4.TBT

Voltage - Reverse Standoff (typ)

3.3V

Voltage - Breakdown

3.5V

Power (watts)

500W

Polarization

4 Channel Array - Unidirectional

Mounting Type

Surface Mount

Package / Case

8-SOIC

Diode Type

Low Capacitance

Clamping Voltage Vc Max

15V

Operating Voltage

3.3V

Diode Case Style

SOIC

No. Of Pins

Breakdown Voltage Min

3.5V

Capacitance, Cd

4pF

Junction Capacitance

15pF

Rohs Compliant

Yes

Leaded Process Compatible

Yes

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

SRDA3.3-4TR

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Part Number

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Current page: 1 of 8
Download datasheet (180Kb)

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 SRDA3.3-4 is constructed using Semtech’s

proprietary EPD process technology. The EPD process

provides low stand-off voltages with significant reduc-

tions in leakage current and capacitance over silicon-

avalanche diode processes. They feature a true

operating voltage of 3.3 volts for superior protection.

These devices are in a 8-pin SOIC package. It mea-

sures 3.9 x 4.9mm. 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 equipment, telecommunication lines, and

video lines.

Revision 01/15/08

PROTECTION PRODUCTS

PROTECTION PRODUCTS - RailClamp

Description

Circuit Diagram

2, 3

I/O 1

I/O 2

5, 8

I/O 3

I/O 4

® ® ® ® ®

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 voltage: 3.3V

Low clamping voltage

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

T1/E1 secondary IC Side Protection

T3/E3 secondary IC Side Protection

Analog Video Protection

Microcontroller Input Protection

Base stations

I/O 1

I/O 2

C Bus Protection

Low Capacitance TVS Array

S0-8 (Top View)

SRDA3.3-4

RailClamp

www.semtech.com

GND

I/O 4

I/O 3

GND

® ® ® ® ®

Related parts for SRDA3.3-4.TBT

SRDA3.3-4.TBT Summary of contents

Page 1

... The low capaci- tance array configuration allows the user to protect up to four high-speed data lines. The SRDA3.3-4 is constructed using Semtech’s proprietary EPD process technology. The EPD process provides low stand-off voltages with significant reduc- tions in leakage current and capacitance over silicon- avalanche diode processes ...

Page 2

Page 3

... Reverse Voltage - VR (V) © 2008 Semtech Corp. 110 100 100 1000 (µs) p Clamping Voltage vs. Peak Pulse Current 20 Waveform Parameters 8µ 20µ 2.5 3 3.5 3 SRDA3.3-4 Power Derating Curve 100 125 o Ambient Temperature - Waveform Parameters ∠ 20∠ Peak Pulse Current - Ipp (A) www.semtech.com 150 25 ...

Page 4

... EPD TVS Characteristics These devices are constructed using Semtech’s proprietary EPD technology. By utilizing the EPD tech- nology, the SRDA3.3-4 can effectively operate at 3.3V while maintaining excellent electrical characteristics. The EPD TVS employs a complex nppn structure in contrast to the pn structure normally found in tradi- tional silicon-avalanche TVS diodes ...

Page 5

Page 6

Page 7

... Semtech Corp GAGE PLANE 0. (L1) A DETAIL SEE DETAIL SIDE VIEW -H- X DIM INCHES (.205 .118 .050 X .024 Y .087 Y Z .291 P 7 SRDA3.3-4 DIMENSIONS INCHES MILLIMETERS DIM MIN NOM MAX MIN NOM - A .053 .069 1. .004 .010 0. .049 .065 1. .012 .020 0. .007 .010 ...

Page 8

... Semtech Corp. Ordering Information 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 8 SRDA3.3 Pin 1 Location User Direction of feed Device Orientation in Tape ± ± ± ...

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