UM5204
Quad Channel Low Capacitance ESD Protection Array
UM5204EECD SOT23-6
UM5204EECE SOT23-6
General Description
UM5204EECD/EECE is 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), electrical
fast transients (EFT) and lighting.
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.
UM5204EECD/EECE has a low typical capacitance of 1pF and operates with virtually no
insertion loss to 2GHz. This makes the device ideal for protection of high-speed data line such as
USB2.0, Firewire, DVI and gigabit Ethernet interface.
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
10/100/1000Mbit Ethernet
Monitors and Flat Panel Displays
Digital Visual Interface (DVI)
High-Definition Multimedia Interface
(HDMI)
Transient Protection for High-Speed Data
Lines to
IEC 61000-4-2 (ESD) ±20kV (Air), ±12kV
(Contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
IEC 61000-4-5 (Lighting) 10A (8/20µs)
Array of Surge Rated Diodes with Internal
TVS Diode
Protects up to Four I/O Lines & Power Line
Low Capacitance (<1pF) for High-Speed
Interfaces, No Insertion Loss to 2.0GHz
Low Leakage Current and Clamping Voltage
Low Operating Voltage: 5.0V
SIM Ports
IEEE 1394 Firewire Ports
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http://www.union-ic.com Rev.04 Mar.2016 1/11