UESD54B_15 Datasheet, PDF (1/10 Pages) Union Semiconductor, Inc. – Quad/Five/Six Line ESD Protection Diode Array

UESD54B/55B/56B/57B/64B
Quad/Five/Six Line ESD Protection Diode Array
UESD54B SC70-5/SC88A/SOT353
UESD55B SC89-6/SOT563/SOT666
UESD56B SC89-6/SOT563/SOT666
UESD57B DFN6 1.6×1.6
UESD64B SC89-5/SOT553/SOT665
General Description
The UESD54B/55B/56B/57B/64B of TVS diode array is designed to protect sensitive electronics
from damage or latch-up due to ESD for use in applications where board space is at a premium. It is
unidirectional device and may be used on lines where the signal polarities are above ground. The
UESD54B/55B/64B will protect up to four lines, the UESD56B will protect up to five lines and the
UESD57B will protect up to six lines.
TVS diodes are solid-state devices feature large cross-sectional area junctions for conducting high
transient currents, specifically for transient suppression. It offers desirable characteristics for board
level protection including fast response time, low operating, low clamping voltage, and no device
degradation.
The UESD54B/55B/56B/57B/64B may be used to meet the immunity requirements of IEC 61000-4-2,
level 4. The small package makes them ideal for use in portable electronics such as cell phones,
PDA’s, notebook computers, and digital cameras.
Applications
 Cellular Handsets & Accessories
 Cordless Phones
 Personal Digital Assistants (PDA’s)
 Notebooks & Handhelds
 Portable Instrumentation
 Digital Cameras
 Peripherals
 MP3 Players
Features
 Transient Protection for Data & Power Lines to
IEC 61000-4-2 (ESD) ±15kV (Air), ±8kV
(Contact)
 Working Voltages: 5V
 Low Leakage Current
 Low Clamping Voltage
 Solid-State Silicon Avalanche Technology
Ordering Information
Part
Number
UESD54B
UESD55B
UESD56B
UESD57B
UESD64B
Working
Voltage
5.0V
5.0V
5.0V
5.0V
5.0V
Packaging Type
Channel
SC70-5/SC88A/SOT353
4
SC89-6/SOT563/SOT666 4
SC89-6/SOT563/SOT666 5
DFN6 1.6×1.6
6
SC89-5/SOT553/SOT665 4
Marking
Code
UQ5
UF5
UB5
E57
UR6
Shipping Qty
3000pcs/7Inch
Tape & Reel
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http://www.union-ic.com Rev.02 Nov.2014
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