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Power Innovations Limited - BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS

Numéro de référence TISP4082F3LM
Description BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS
Fabricant Power Innovations Limited 
Logo Power Innovations Limited 





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TISP4082F3LM fiche technique
TISP4072F3LM, TISP4082F3LM, TISP4125F3LM, TISP4150F3LM, TISP4180F3LM
TISP4240F3LM, TISP4260F3LM, TISP4290F3LM, TISP4320F3LM, TISP4380F3LM
BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS
Copyright © 1999, Power Innovations Limited, UK
DECEMBER 1998 - REVISED APRIL 1999
TELECOMMUNICATION SYSTEM SECONDARY PROTECTION
q Ion-Implanted Breakdown Region
Precise and Stable Voltage
Low Voltage Overshoot under Surge
DEVICE
‘4072
‘4082
‘4125
‘4150
‘4180
‘4240
‘4260
‘4290
‘4320
‘4380
VDRM
V
58
66
100
120
145
180
200
220
240
270
V(BO)
V
72
82
125
150
180
240
260
290
320
380
q Rated for International Surge Wave Shapes
T(A)
NC
R(B)
LM PACKAGE
(TOP VIEW)
1
2
3
NC - No internal connection on pin 2
LMF PACKAGE
(LM PACKAGE WITH FORMED LEADS)
(TOP VIEW)
T(A)
NC
R(B)
1
2
3
NC - No internal connection on pin 2
WAVE SHAPE
10/160 µs
0.5/700 µs
10/700 µs
10/560 µs
10/1000 µs
STANDARD
FCC Part 68
I3124
ITU-T K20/21
FCC Part 68
REA PE-60
ITSP
A
60
38
50
45
35
device symbol
T
q Ordering Information
DEVICE TYPE
PACKAGE TYPE
TISP4xxxF3LM Straight Lead DO-92 Bulk Pack
TISP4xxxF3LMR Straight Lead DO-92 Tape and Reeled
TISP4xxxF3LMFR Formed Lead DO-92 Tape and Reeled
R SD4XAA
Terminals T and R correspond to the
alternative line designators of A and B
MD4XAT
MD4XAKB
description
These devices are designed to limit overvoltages on the telephone line. Overvoltages are normally caused by
a.c. power system or lightning flash disturbances which are induced or conducted on to the telephone line. A
single device provides 2-point protection and is typically used for the protection of 2-wire telecommunication
equipment (e.g. between the Ring to Tip wires for telephones and modems). Combinations of devices can be
used for multi-point protection (e.g. 3-point protection between Ring, Tip and Ground).
The protector consists of a symmetrical voltage-triggered bidirectional thyristor. Overvoltages are initially
clipped by breakdown clamping until the voltage rises to the breakover level, which causes the device to
crowbar into a low-voltage on state. This low-voltage on state causes the current resulting from the
overvoltage to be safely diverted through the device. The high crowbar holding current prevents d.c. latchup
as the diverted current subsides.
This TISP4xxxF3LM range consists of ten voltage variants to meet various maximum system voltage levels
(58 V to 270 V). They are guaranteed to voltage limit and withstand the listed international lightning surges in
both polarities. These protection devices are supplied in a DO-92 (LM) cylindrical plastic package. The
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.
1

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