Littelfuse SP4021 Series - Manual

1 ©2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com for current information.
TVS Diode Arrays
(SPA ® Diodes)
Revision: July 12, 2013
Lightning Surge Protection- SP4021 Series
SP4021
SP4021 Series
Description
Applications
The SP4021 devices integrate low capacitance steering
diodes with one or two zener diodes for unidirectional or
bidirectional protection, respectively, to protect against
ESD and lightning induced surge events. These devices
can safely absorb up to 25A per IEC61000-4-5 (tp=8/20μs)
without performance degradation and a minimum ±30kV
ESD per IEC61000-4-2 International Standard. The low
loading capacitance and high surge capability make it ideal
for protecting telecommunication ports such as Ethernet
and other high speed data interfaces.
Features
• ESD, IEC61000-4-2,
±30kV contact, ±30kV air
• EFT, IEC61000-4-4, 40A
(5/50ns)
• Lightning, IEC61000-4-5,
25A (t
P
=8/20μs)
• Low capacitance of 2.5pF
(@ V
R
=0V)
• Low leakage current
• Unidirectional and
Bidirectional configuration
• Small SOD323 package
fits 0805 footprints
•10/100/1000 Ethernet
•T1/E1/T3/E3
•USB 1.1/2.0
•Power Ports •Computers and Peripherals
•Instrumentation
•Medical Equipment
Pinout
Life Support Note:
Not Intended for Use in Life Support or Life Saving Applications
The products shown herein are not designed for use in life sustaining or life saving
applications unless otherwise expressly indicated.
RoHS Pb GREEN
SP4021 Series 2.5pF, 25A Discrete TVS Diode
1
2
Functional Block Diagram
1
2
1
2
Unidirectional Bidirectional
SP4021-01FTG SP4021-01FTG-C