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).