TISP4072F3LM THRU TISP4082F3LM,
TISP4125F3LM THRU TISP4180F3LM,
TISP4240F3LM THRU TISP4380F3LM
BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS
TISP4xxxF3LM Overvoltage Protector Series
Ion-Implanted Breakdown Region
Precise and Stable Voltage
Low Voltage Overshoot under Surge
LM Package (Top View)
T(A)
NC
R(B)
1
2
3
V
V
DRM
V
(BO)
V
Device
‘4072
‘4082
‘4125
‘4150
‘4180
‘4240
‘4260
‘4290
‘4320
‘4380
58
66
72
MD4XAT
82
NC - No internal connection on pin 2
100
120
145
180
200
220
240
270
125
150
180
240
260
290
320
380
LMF Package (LM Package with Formed Leads) (Top View)
T(A)
1
2
3
NC
R(B)
MD4XAKB
NC - No internal connection on pin 2
Rated for International Surge Wave Shapes
I
TSP
A
Waveshape
Standard
Device Symbol
T
10/160 µs
0.5/700 µs
10/700 µs
10/560 µs
10/1000 µs
FCC Part 68
I3124
60
38
50
45
35
ITU-T K.20/21
FCC Part 68
REA PE-60
R
SD4XAA
.............................................. UL Recognized Component
Terminals T and R correspond to the
alternative line designators of A and B
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.
How To Order
For Standard
For Lead Free
Termination Finish Termination Finish
Device
Package
Carrier
Order As
Order As
Bulk Pack
TISP4xxxF3LM
TISP4xxxF3LM-S
TISP4xxxF3LMR-S
TISP4xxxF3LMFRS
Straight Lead DO-92 (LM)
TISP4xxxF3LM
Tape and Reeled TISP4xxxF3LMR
Formed Lead DO-92 (LMF) Tape and Reeled TISP4xxxF3LMFR
Insert xxx value corresponding to protection voltages of 072, 082, 125 etc.
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
NOVEMBER 1997 - REVISED FEBRUARY 2005
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.