TISP4125M3LM

Manufacturer Part NumberTISP4125M3LM
ManufacturerBourns, Inc.
TISP4125M3LM datasheet
 


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

TISP4125M3LM Summary of contents