sms3.3 Semtech Corporation, sms3.3 Datasheet

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sms3.3

Manufacturer Part Number
sms3.3
Description
Sms3.3 3.3 Volt Tvs Array For Esd And Latch-up Protection
Manufacturer
Semtech Corporation
Datasheet

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sms3.3.TCT
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The SMS series of TVS arrays are designed to protect
sensitive electronics from damage or latch-up due to
ESD, lightning, and other voltage-induced transient
events. Each device will protect up to four lines operating
at 3.3 volts.
The SMS3.3 is a solid-state device designed specifically
for transient suppression. It is constructed using
Semtech’s proprietary EPD process technology. The EPD
process provides low standoff voltages with significant
reductions in leakage currents and capacitance over
traditional pn junction processes. They offer desirable
characteristics for board level protection including fast
response time, low clamping voltage and no device
degradation.
The SMS3.3 may be used to meet the immunity require-
ments of IEC 61000-4-2, level 4 (±15kV air, ±8kV
contact discharge). The low cost SOT23-6L package
makes them ideal for use in portable electronics such
as cell phones, PDA’s, and notebook computers.
Revision 08/11/04
PROTECTION PRODUCTS
Description
Equivalent Circuit Diagram
1
Features
Mechanical Characteristics
Applications
Schematic & PIN Configuration
For ESD and Latch-Up Protection
Transient protection for 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) 12A (8/20µs)
Protects four I/O lines
Working voltage: 3.3V
Low leakage current (<1µA)
Low clamping voltage
Low capacitance (35pF typical)
Solid-state EPD TVS technology
EIAJ SOT23-6L package
Molding compound flammability rating: UL 94V-0
Marking : Marking Code
Packaging : Tape and Reel per EIA 481
Cell phone Handsets and Accessories
Microprocessor Based Equipment
Personal Digital Assistants (PDA’s) and Pagers
Desktops PC and Servers
Notebook, Laptop, and Palmtop Computers
Portable Instrumentation
Peripherals
MP3 Players
Cordless Phones
SOT23-6L (Top View)
3.3 Volt TVS Array
United States Patent No.
www.semtech.com
SMS3.3

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sms3.3 Summary of contents

Page 1

... The SMS3.3 may be used to meet the immunity require- ments of IEC 61000-4-2, level 4 (±15kV air, ±8kV contact discharge). The low cost SOT23-6L package makes them ideal for use in portable electronics such as cell phones, PDA’ ...

Page 2

... SMS3 > > ...

Page 3

... Current d Current d Current d Current Waveform 10 Parameters 8µ 20µ ( SMS3.3 Power Derating Power Derating Power Derating Power Derating Power Derating 100 125 o Ambient Temperature - ping V ping V ping V ping Voltage vs. P oltage vs. Peak Pulse Current oltage vs ...

Page 4

... PROTECTION PRODUCTS PROTECTION PRODUCTS Applications Information Device Connection for Protection of Four Data Lines The SMS3.3 is designed to protect up to four unidirec- tional data lines. The device is connected as follows: 1. Unidirectional protection of four I/O lines is achieved by connecting pins and 6 to the data lines. Pin 2 and 5 are connected to ground. ...

Page 5

... PROTECTION PRODUCTS PROTECTION PRODUCTS Typical Applications 2004 Semtech Corp. 5 SMS3.3 www.semtech.com ...

Page 6

... CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. 2004 Semtech Corp GAGE PLANE 0.25 L (L1) A DETAIL A SEE DETAIL SIDE VIEW - SMS3.3 DIMENSIONS INCHES MILLIMETERS DIM MIN NOM MAX MIN NOM MAX - A .057 0.90 .035 - A1 .000 .006 0. .035 .045 ...

Page 7

... Flynn Rd., Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804 www.semtech.com SMS3 ...

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