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http://www.union-ic.com Rev.03 Sep.2015

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UESD6V8V4X

Quad Channel Low Capacitance ESD Protection Array

UESD6V8V4A SC70-6/SC88/SOT363

UESD6V8V4B SC89-6/SOT563/SOT666

UESD6V8V4C TSOP-6/SOT23-6

General Description

UESD6V8V4X are surge rated diode arrays designed to protect high speed data interfaces. This series

has been specifically designed to protect sensitive components which are connected to data and

transmission lines from over-voltage caused by ESD (electrostatic discharge).

The unique design incorporates surge rated, low capacitance steering diodes and a TVS diode in a

single package. During transient conditions, the steering diodes direct the transient to either the

positive side of the power supply line or to ground. The internal TVS diode prevents over-voltage on

the power line, protecting any downstream components.

The low capacitance array configuration allows the user to protect four high-speed data or

transmission lines. The low inductance construction minimizes voltage overshoot during high current

surges. This device is optimized for ESD protection of portable electronics. They may be used to meet

the ESD immunity requirements of IEC 61000-4-2, Level 4 (±15kV air, ±8kV contact discharge).

Applications

Features



USB 2.0



USB OTG



Monitors and Flat Panel



Displays Digital Visual Interface (DVI)



High-Definition Multimedia Interface

(HDMI)



SIM Ports IEEE 1394 Firewire Ports



Transient Protection for High-Speed Data Lines

to IEC 61000-4-2 (ESD) ± 15kV (Air), ± 8kV

(Contact)



Array of Surge Rated Diodes with Internal TVS

Diode



Protects up to Four I/O Lines & Power Lines



Low Capacitance for High-Speed Interfaces



Low Leakage Current and Clamping Voltage



Low Operating Voltage: 5.0V



Solid-State Silicon-Avalanche Technology

Pin Configurations

Top View

M: Month Code

UESD6V8V4A

SC70-6/SC88/SOT363

M: Month Code

UESD6V8V4B

SC89-6/SOT563/SOT666

XX: Week Code

UESD6V8V4C

TSOP-6/SOT23-6