TPN3021_06 Datasheet, PDF (1/8 Pages) STMicroelectronics – Tripolar overvoltage protection for network interfaces

TPN3021
Tripolar overvoltage protection for network interfaces
Features
■ Triple crowbar protection
■ Low capacitance
■ Low holding current: I_H = 30 mA minimum
■ Surge current:
– I_PP = 200 A, 2/10 µs
– I_PP = 30 A, 10/1000 µs
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.
SO-8
Schematic diagram
Rx+ / Tx+ 1
NC 2
NC 3
Rx- / Tx- ₄
8 NC
7 NC
6 GND
5 NC
February 2006
Rev 4
1/8
www.st.com
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