© 2017 Littelfuse, Inc.

Specifications are subject to change without notice.

Revised: 05/04/17

Lightning Surge Protection- 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 IEC 61000-4-5 (tp=8/20μs)

without performance degradation and a minimum ±30kV

ESD per IEC 61000-4-2 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, IEC 61000-4-2,

±30kV contact, ±30kV air

• EFT, IEC 61000-4-4, 40A

(5/50ns)

• Lightning, IEC 61000-4-5,

25A (t

• Low capacitance of 2.5pF

(@ V

• 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.

SP4021 Series 2.5pF, 25A Discrete TVS Diode

1

2

Functional Block Diagram

1

2

1

2

Unidirectional

Bidirectional

SP4021-01FTG

SP4021-01FTG-C

Additional Information

Datasheet

Samples

Resources