TISP4C115H3BJ THRU TISP4C395H3BJ
T
N
A
I
L
P
M
O
C
S
LOW CAPACITANCE
H
o
R
*
BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS
TISP4CxxxH3BJ Overvoltage Protector Series
Ion-Implanted Breakdown Region
- Precise and Stable Voltage
SMB Package (Top View)
- Low Voltage Overshoot under Surge
- Low Off-State Capacitance
VDRM
V(BO)
V
R
1
2 T
Device Name
V
TISP4C115H3BJ †
TISP4C125H3BJ †
TISP4C145H3BJ †
TISP4C165H3BJ
TISP4C180H3BJ †
TISP4C220H3BJ †
TISP4C250H3BJ †
90
100
120
135
145
180
190
115
125
145
165
180
220
250
MD-SMB-004-a
Device Symbol
T
TISP4C290H3BJ †
TISP4C350H3BJ †
TISP4C395H3BJ †
220
275
320
290
350
395
Rated for International Surge Wave Shapes
R
IPPSM
SD-TISP4xxx-001-a
Wave Shape
Standard
A
2/10
GR-1089-CORE
TIA-968-A
500
200
150
100
100
10/160
10/700
10/560
10/1000
†
.......................................... UL Recognized Component
ITU-T K.20/21/45
TIA-968-A
GR-1089-CORE
Description
This device is 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 and 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.
Please contact your Bourns representative if the protection voltage you require is not listed.
How to Order
Marking
Code
Device
Package
Carrier
Std. Qty.
Order As
TISP4CxxxH3BJ
SMB
Embossed Tape Reeled
TISP4CxxxH3BJR-S 4CxxxH
3000
Insert xxx corresponding to device name.
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
SEPTEMBER 2004 – REVISED JUNE 2007
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.