Features

ESD protection for 4 high-speed I/O channels

Provide transient protection for each line to

IEC 61000-4-2 (ESD) ±16kV (air), ±14kV (contact)

IEC 61000-4-4 (EFT) 30A (5/50ns)

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

For low operating voltage of 3.3V and below

Ultra-low capacitance: 0.29pF typical

Fast turn-on and ultra-low clamping voltage

Array of ESD rated diodes with internal

equivalent TVS (Transient Voltage

Suppression) diode

Solid-state silicon-avalanche and active circuit

triggering technology

Green part

Applications

HDMI 1.3 & 1.4, and 2.0 version

DisplayPort 1.1 & 1.2 and 1.3 version

USB3.0 & 3.1 interfaces

USB Type-C interface

SATA and eSATA interfaces

Handheld portable applications

Description

AZ1943-04F is a design which includes ESD

rated diode arrays to protect high-speed data

interfaces. The AZ1943-04F has been

specifically designed to protect sensitive

components which are connected to data and

transmission lines from over-voltage damage

caused by Electrostatic Discharging (ESD),

Electrical Fast Transients (EFT), Lightning, and

Cable Discharge Event (CDE).

AZ1943-04F is a unique design which includes

ESD rated, ultra-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

ground line. The internal unique design of

clamping cell prevents over-voltage on the

internal ESD line and on the I/O line, which is

protecting any downstream components.

AZ1943-04F may be used to meet the ESD

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

(±15kV air, ±8kV contact discharge).