PROTECTION PRODUCTS

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PROTECTION PRODUCTS

SD05 and SD12

Single Line TVS Diode for ESD

Protection in Portable Electronics

Description

Features

Schematic & PIN Configuration

Revision 07/12/04

Applications

Mechanical Characteristics

The SDxx TVS diodes are designed to replace multilayer

varistors (MLVs) in portable applications such as cell

phones, notebook computers, and PDA’s. They offer

superior electrical characteristics such as lower clamp-

ing voltage and no device degradation when compared

to MLVs. The SDxx series TVS diodes are designed to

protect sensitive semiconductor components from

damage or upset due to electrostatic discharge (ESD)

and other voltage induced transient events.

The SDxx is in a SOD-323 package and will protect one

unidirectional line. They are available with working

voltages of 5 volts (SD05) and 12 volts (SD12). These

devices will fit on the same PCB pad area as an 0805

MLV device. They give the designer the flexibility to

protect one line in applications where arrays are not

practical. Additionally, it may be “sprinkled” around the

board in applications where board space is at a pre-

mium.

They may be used to meet the ESD immunity require-

ments of IEC 61000-4-2, Level 4 (±15kV air, ±8kV

contact discharge).

350 Watts peak pulse power (t

Transient protection for data lines to

IEC 61000-4-2 (ESD) ±25kV (air), ±10kV (contact)

IEC 61000-4-4 (EFT) 40A (5/50ns)

IEC 61000-4-5 (Lightning) 24A (8/20µs)

Small package for use in portable electronics

Suitable replacement for MLV’s in ESD protection

applications

Protects one I/O or power line

Low clamping voltage

Working voltages: 5V and 12V

Low leakage current

Solid-state silicon-avalanche technology

EIAJ SOD-323 package

Molding compound flammability rating: UL 94V-0

Marking : Marking code, cathode band

Packaging : Tape and Reel per EIA 481

Cell Phone Handsets and Accessories

Microprocessor based equipment

Personal Digital Assistants (PDA’s)

Notebooks, Desktops, and Servers

Portable Instrumentation

Pagers Peripherals

SOD-323 (Top View)