TISP2290L

DUAL SYMMETRICAL TRANSIENT

VOLTAGE SUPPRESSORS

PRODUCT

INFORMATION

1

FEBRUARY 1990 - REVISED SEPTEMBER 1997

Copyright © 1997, Power Innovations Limited, UK

Information is current as of publication date. Products conform to specifications in accordance

with the terms of Power Innovations standard warranty. Production processing does not

necessarily include testing of all parameters.

TELECOMMUNICATION SYSTEM SECONDARY PROTECTION

q

Ion-Implanted Breakdown Region

Precise and Stable Voltage

Low Voltage Overshoot under Surge

q

Planar Passivated Junctions

Low Off-State Current

< 10 µA

q

Rated for International Surge Wave Shapes

q

UL Recognized, E132482

description

The TISP2290L is designed specifically for

telephone equipment protection against lightning

and transients induced by a.c. power lines.

These devices will supress voltage transients

between terminals A and C, B and C, and A and

B.

Transients are initially clipped by zener action

until the voltage rises to the breakover level,

which causes the device to crowbar. The high

crowbar holding current prevents d.c. latchup as

the transient subsides.

DEVICE

V

V

‘2290L

200

290

WAVE SHAPE

STANDARD

A

8/20 µs

ANSI C62.41

150

10/160 µs

FCC Part 68

60

10/560 µs

FCC Part 68

45

0.2/310 µs

RLM 88

38

10/700 µs

FTZ R12

VDE 0433

CCITT IX K17/K20

50

50

50

10/1000 µs

REA PE-60

50

These

monolithic

protection

devices

are

fabricated in ion-implanted planar structures to

ensure precise and matched breakover control

and are virtually transparent to the system in

normal operation.

device symbol