February 2006

Rev 4

1/8

8

TPN3021

Tripolar overvoltage protection for network interfaces

Features

Main applications

Dedicated to data line protection, this device

provides a tripolar protection function. It ensures

the same protection capability with the same

breakdown voltage in both common and

differential modes.

Description

The TPN3021 is a low capacitance transient

surge arrestor designed for protection of high

debit rate communication network. Its low

capacitance avoids distorsion of the signal as it

has been designed for T1/E1 and Ethernet

networks.

Benefits

Trisil technology is not subject to ageing and

provides a fail safe mode in short circuit for a

better protection. They are used to help

equipment to meet main standards such as

UL1950, IEC950 / CSA C22.2 and UL1459. They

have UL94 V0 ap-proved resin. SO8 package is

JEDEC registered.

Trisils comply with the following standards GR-

1089 Core, ITU-T-K20/K21, VDE0433, VDE0878,

IEC61000-4-2.

Schematic diagram

SO-8

1

2

3

4

5

6

8

NC

GND

NC

NC

NC

NC

7

Rx+ / Tx+

Rx- / Tx-

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