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151

Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com/SPA for current information.

TVS Diode Arrays (SPA

™

Family of Products)

Revision: March 20, 2012

Lightning Surge Protection - SP4040 Series

SP4040 Series

SP4040

Description

Applications

The SP4040 provides overvoltage protection for

applications such as 10/100/1000 Base-T Ethernet and T3/

E3 interfaces. This device has a low capacitance of only

5pF making it suitable for PHY side Ethernet protection

and the capability to protect against both longitudinal and

differential transients. Furthermore, the SP4040 is rated

up to 100A (tp=2/10μs) making it suitable for line side

protection as well against lightning transients as deﬁned

by GR-1089 (intra-building), ITU, YD/T, etc. The application

schematic provides the connection information for a PHY

side protection scheme of a single differential pair.

Features

t-JHIUOJOHQSPUFDUJPO

IEC61000-4-5, 75A

(8/20μs)

t-PXDMBNQJOHWPMUBHF

t-PXJOTFSUJPOMPTTMPH

linear capacitance

t$PNCJOFEMPOHJUVEJOBM

and metallic protection

t$MBNQJOHTQFFEPG

nanoseconds

t40*$TVSGBDFNPVOU

package (JEDEC MS-012)

t6-7FQPYZNPMEJOH

t3P)4DPNQMJBOU

t5&-JOFDBSET

t #BTF5

Ethernet

t 5&BOE%4*OUFSGBDFT

t 454*OUFSGBDFT

Functional Block Diagram

Pinout

Note: Pinout diagrams above shown as device footprint on circuit board.

SP4040 Series 3.3V 75A Diode Array

SOIC-8 (Top View)

Pin 1 and 8

Pin 4 and 5

Pin 2, 3, 6,

and 7

Line out

Line in

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.

Application Example

The schematic shows protection for a single differential

pair as part of a larger high-speed data interface such as

Ethernet. The SP4040 provides both metallic (differential)

and longitudinal (common mode) protection from lightning

induced surge events as speciﬁed by regulatory standards

such as Telcordia’s GR-1089 CORE and ITU K.20 and 21.

The SP4040 protects against both positive and negative

induced surge events while the TeleLink fuse provides

overcurrent protection for the long term 50/60 Hz power

fault events.

to chipset

(Ethernet PHY,

T3/E3 PHY, etc.)

TeleLink (0461 1.25)

SP4040-02BTG

RoHS

GREEN

1 2 3 4 5

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Página 2

Página 3 - Family of Products)

Página 4 - SP4040-02

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