TISP3125F3, TISP3150F3, TISP3180F3
DUAL SYMMETRICAL TRANSIENT
VOLTAGE SUPPRESSORS
Copyright © 1997, Power Innovations Limited, UK
MARCH 1994 - REVISED SEPTEMBER 1997
TELECOMMUNICATION SYSTEM SECONDARY PROTECTION
●
Ion-Implanted Breakdown Region
Precise and Stable Voltage
D PACKAGE
(TOP VIEW)
Low Voltage Overshoot under Surge
1
2
3
4
8
7
6
5
G
G
G
G
T
NC
NC
R
VDRM V(BO)
DEVICE
V
V
‘3125F3
‘3150F3
‘3180F3
100
120
145
125
150
180
MDXXAE
NC - No internal connection
P PACKAGE
(TOP VIEW)
●
●
Planar Passivated Junctions
Low Off-State Current < 10 µA
T
1
2
8
7
T
Rated for International Surge Wave Shapes
G
G
ITSP
WAVE SHAPE
STANDARD
3
4
G
R
6
5
G
R
A
175
120
60
2/10 µs
8/20 µs
FCC Part 68
ANSI C62.41
FCC Part 68
FCC Part 68
RLM 88
MDXXAF
Specified T terminal ratings require connection of pins 1 and 8.
Specified R terminal ratings require connection of pins 4 and 5.
10/160 µs
10/560 µs
0.5/700 µs
45
38
SL PACKAGE
(TOP VIEW)
FTZ R12
50
10/700 µs
VDE 0433
50
CCITT IX K17/K20
REA PE-60
50
1
2
3
T
G
R
10/1000 µs
35
●
Surface Mount and Through-Hole Options
MDXXAG
MD23AA
PACKAGE
Small-outline
Small-outline taped
and reeled
PART # SUFFIX
D
device symbol
DR
Plastic DIP
P
R
T
Single-in-line
SL
●
UL Recognized, E132482
description
These medium voltage dual symmetrical
SD3XAA
transient voltage suppressor devices are
designed to protect ISDN and telecommunication
applications with ground backed ringing against
transients caused by lightning strikes and a.c.
power lines. Offered in three 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 level, which causes the device to
G
Terminals T, R and G correspond to the
alternative line designators of A, B and C
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
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.
1