Features

ESD protection for 4 high-speed I/O channels

Protects 4 I/O lines operating up to 3.3V and below

Protects one VDD line operating up to 5V and below

Provide transient protection for each channel to

IEC 61000-4-2 (ESD) ±30kV (air / contact)

IEC 61000-4-4 (EFT) 80A (5/50ns)

IEC 61000-4-5 (Lightning) 16A (8/20μs) for any

I/O-to-GND

IEC 61000-4-5 (Lightning) 22A (8/20μs) for

VDD-to-GND

Low capacitance: 1.7pF typical

Fast turn-on and low clamping voltage

Array of ESD rated diodes with internal

equivalent TVS diode

Solid-state silicon-avalanche and active circuit

triggering technology

Green part

Applications

USB2.0 interface protection

LVDS interface protection

LAN applications

General purpose I/O protection

Notebook and PC computers

Description

AZ1235-04S is a high performance design which

includes surge rated diode arrays to protect high

speed data interfaces. The AZ1235-04S has been

specifically designed to protect sensitive

components which are connected to data and

transmission lines from over-voltage caused by

Electrostatic Discharging (ESD), Electrical Fast

Transients (EFT), and Lightning.

AZ1235-04S is a unique design which includes

surge rated, low capacitance steering diodes and

a unique design of clamping cell which is an

equivalent TVS diode in a single package. During

transient conditions, the steering diodes direct the

transient to either the internal ESD line or to the

ground line. The internal unique design of

clamping cell prevents over-voltage on the power

line, protecting any downstream components.

AZ1235-04S may be used to meet the ESD

immunity requirements of IEC 61000-4-2, Level 4

(± 15kV air, ±8kV contact discharge).