tisp4240m3 Bourns, Inc., tisp4240m3 Datasheet
tisp4240m3
Manufacturer Part Number
tisp4240m3
Description
Bidirectional Thyristor Overvoltage Protectors - Power Innovations Ltd
Manufacturer
Bourns, Inc.
Datasheet
1.TISP4240M3.pdf
(16 pages)
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Copyright © 1999, Power Innovations Limited, UK
description
P R O D U C T
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.
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.
WAVE SHAPE
4 kV 10/700, 100 A 5/310 ITU-T K20/21 rating
Ion-Implanted Breakdown Region
Precise and Stable Voltage
Low Voltage Overshoot under Surge
Rated for International Surge Wave Shapes
Low Differential Capacitance . . . 43 pF max.
DEVICE
10/1000 µs
TELECOMMUNICATION SYSTEM MEDIUM CURRENT OVERVOLTAGE PROTECTORS
10/160 µs
10/700 µs
10/560 µs
‘4070
‘4080
‘4095
‘4125
‘4145
‘4165
‘4180
‘4220
‘4240
‘4260
‘4300
‘4350
‘4400
2/10 µs
8/20 µs
TISP4070M3LM THRU TISP4095M3LM, TISP4125M3LM THRU TISP4220M3LM,
V
100
120
135
145
160
180
200
230
275
300
GR-1089-CORE
GR-1089-CORE
DRM
58
65
75
V
IEC 61000-4-5
ITU-T K20/21
FCC Part 68
FCC Part 68
FCC Part 68
I N F O R M A T I O N
STANDARD
V
125
145
165
180
220
240
260
300
350
400
(BO)
70
80
95
V
I
300
220
120
100
TSP
75
50
A
BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS
device symbol
TISP4xxxM3LM
TISP4xxxM3LMR
TISP4xxxM3LMFR Formed Lead DO-92 Tape and Reeled
DEVICE TYPE
Ordering Information
TISP4240M3LM THRU TISP4400M3LM
T(A)
NC
R(B)
(LM PACKAGE WITH FORMED LEADS)
T(A)
NC
R(B)
Terminals T and R correspond to the
alternative line designators of A and B
NC - No internal connection on pin 2
NC - No internal connection on pin 2
NOVEMBER 1997 - REVISED APRIL 1999
LMF PACKAGE
LM PACKAGE
(TOP VIEW)
Straight Lead DO-92 Bulk Pack
Straight Lead DO-92 Tape and Reeled
(TOP VIEW)
R
T
PACKAGE TYPE
SD4XAA
1
2
3
1
2
3
MD4XAT
MD4XAKB
1
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