TISP4C015L1N THRU TISP4C035L1N
LOW CAPACITANCE
BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTOR
TISP4C0xxL1N Overvoltage Protector Series
JULY 2008 - REVISED MAY 2009
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications
SOT23-5 Package (Top View)
This range of devices is designed to protect xDSL line-driver
interfaces from overvoltages. Overvoltages are normally caused
by a.c. power-system or lightning-fl ash disturbances which are
induced or conducted onto the telephone line. These symmetri-
cal protectors are two-terminal thyristor-crowbar devices. They
can be used to protect between conductors, or a pair of devices
can be deployed to protect from line to ground. When placed
between the xDSL line driver IC and the transformer, this
Designed for ADSL, ADSL2, VDSL, VDSL2 protection
Ion-Implanted Breakdown Region
- Precise and Stable Voltage
Low Voltage Overshoot Under Surge
Low Off-State Capacitance
Device Name
V
DRM
V
V
(BO)
V
TISP4C015L1N 8 15
TISP4C020L1N 12 20
TISP4C025L1N 16 25
TISP4C035L1N 24
35
Rated for International Surge Wave Shapes
Wave Shape Standard
I
PPSM
A
8/20 IEC 61000-4-5 30
10/1000 GR-1089-CORE 18
MD-SOT23-5-001-a
Terminal typical application names
shown in parenthesis.
NU - Non-usable; no external electrical
connection should be made to this terminal.
(Ring)
1
2
34
5)piT()piT(
(Ring)
NU
Device Symbol
(Tip)
SD-TISP4-002-a
(Ring)
Description
protector will clamp and switch into a low-impedance state, safely diverting the energy transferred by the xDSL coupling transformer.
The low capacitance design makes this device suitable for designs from ADSL all the way up to 30 MHz VDSL2.
Telecom ports need protection against Common Mode (Longitudinal) and Differential (Metallic) surges, to comply with international
standards such as ITU-T K.20, K.21 or K.45, Telcordia GR-1089-CORE and YD/T. Common Mode surges are resisted by the galvanic
isolation of the coupling transformer which is commonly rated to 2 kV or greater. Differential surges can be transmitted by the
transformer, and can stress the Line Driver Interface IC. As the xDSL interface circuit is designed to operate from 3 kHz to to 30 MHz,
nearby high frequency events - such as cable fl ashover or primary protection activation - can generate damaging conditions for the
interface requiring this type of protection.
Please contact your Bourns representative if the protection voltage you require is not listed.
How to Order
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TISP4C0xxL1N SOT23-5 Embossed Tape Reeled TISP4C0xxL1NR-S Cxx 10000
Insert xx corresponding to device name.
