TISP5070H3BJ, TISP5080H3BJ, TISP5110H3BJ, TISP5150H3BJ
FORWARD-CONDUCTING
UNIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS
Copyright © 1999, Power Innovations Limited, UK
JANUARY 1998 - REVISED MARCH 1999
TELECOMMUNICATION SYSTEM HIGH CURRENT OVERVOLTAGE PROTECTORS
q
Analogue Line Card and ISDN Protection
- Analogue SLIC
- ISDN U Interface
- ISDN Power Supply
8 kV 10/700, 200 A 5/310 ITU-T K20/21 rating
Ion-Implanted Breakdown Region
Precise and Stable Voltage
Low Voltage Overshoot under Surge
V
DRM
DEVICE
‘5070
‘5080
‘5110
‘5150
V
-58
-65
-80
-120
V
(BO)
SMBJ PACKAGE
(TOP VIEW)
1
2
q
q
MDXXBGB
device symbol
2
MINIMUM MAXIMUM
V
-70
-80
-110
-150
SD5XAB
1
q
Rated for International Surge Wave Shapes
WAVE SHAPE
2/10 µs
8/20 µs
10/160 µs
10/700 µs
10/560 µs
10/1000 µs
STANDARD
GR-1089-CORE
ANSI C62.41
FCC Part 68
ITU-T K20/21
FCC Part 68
GR-1089-CORE
I
TSP
A
500
300
250
200
160
100
description
These devices are designed to limit overvoltages on the telephone and data lines. 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 ISDN
power supply feeds. Two devices, one for the Ring output and the other for the Tip output, will provide
protection for single supply analogue SLICs. A combination of three devices will give a low capacitance
protector network for the 3-point protection of ISDN lines.
The protector consists of a voltage-triggered unidirectional thyristor with an anti-parallel diode. Negative
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. Positive overvoltages are limited by the conduction of
the anti-parallel diode.
This TISP5xxxH3BJ range consists of four voltage variants to meet various maximum system voltage levels
(58 V to 120 V). They are guaranteed to voltage limit and withstand the listed international lightning surges in
both polarities. These high (H) current protection devices are in a plastic package SMBJ (JEDEC DO-214AA
with J-bend leads) and supplied in embossed carrier reel pack.
PRODUCT
INFORMATION
1
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.
POINN [ POWER INNOVATIONS LTD ]
