TISP4240F3 Datasheet, PDF (1/13 Pages) Power Innovations Ltd – SYMMETRICAL TRANSIENT VOLTAGE SUPPRESSORS

TISP4240F3, TISP4260F3, TISP4290F3, TISP4320F3, TISP4380F3
SYMMETRICAL TRANSIENT
VOLTAGE SUPPRESSORS
Copyright © 1997, Power Innovations Limited, UK
MARCH 1994 - REVISED SEPTEMBER 1997
TELECOMMUNICATION SYSTEM SECONDARY PROTECTION
q Ion-Implanted Breakdown Region
Precise and Stable Voltage
Low Voltage Overshoot under Surge
DEVICE
‘4240F3
‘4260F3
‘4290F3
‘4320F3
‘4380F3
V_DRM
V
180
200
220
240
270
V_(BO)
V
240
260
290
320
380
q Planar Passivated Junctions
Low Off-State Current < 10 µA
q Rated for International Surge Wave Shapes
D PACKAGE
(TOP VIEW)
T1
T2
T3
T4
8R
7R
6R
5
R _MDXXAI
Specified ratings require the connection
of pins 1, 2, 3 and 4 for the T terminal.
SL PACKAGE
(TOP VIEW)
T
1
WAVE SHAPE
STANDARD
I_TSP
A
2/10 µs
FCC Part 68
175
8/20 µs
ANSI C62.41
120
10/160 µs
FCC Part 68
60
10/560 µs
FCC Part 68
45
0.5/700 µs
RLM 88
38
FTZ R12
50
10/700 µs
VDE 0433
50
CCITT IX K17/K20
50
10/1000 µs
REA PE-60
35
R
2
device symbol
MDXXAH
MD4XAA
D PACKAGE
T
T
T
T
4
3
2
1
SL PACKAGE
T
1
q Surface Mount and Through-Hole Options
PACKAGE
Small-outline
Small-outline taped
and reeled
Single-in-line
PART # SUFFIX
D
DR
SL
q UL Recognized, E132482
description
These high voltage symmetrical transient voltage
suppressor devices are designed to protect two
wire telecommunication applications against
transients caused by lightning strikes and a.c.
power lines. Offered in five voltage variants to
meet battery and protection requirements they
are guaranteed to suppress and withstand the
listed international lightning surges in both
polarities.
Transients are initially clipped by breakdown
clamping until the voltage rises to the breakover
5
6
7
8
2
RR RR
R
SD4XAE
Terminals T and R correspond to the
alternative line designators of A and B
level, which causes the device to crowbar. The
high crowbar holding current prevents d.c.
latchup as the current subsides.
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
The small-outline 8-pin assignment has been
carefully chosen for the TISP series to maximise
the inter-pin clearance and creepage distances
which are used by standards (e.g. IEC950) to
establish voltage withstand ratings.
PRODUCT INFORMATION
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.
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