oH
V SC
AV ER OM
AI SIO PL
LA N IA
BL S NT
E
TISP4C125H3BJ THRU TISP4C395H3BJ
LOW CAPACITANCE
BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS
*R
TISP4CxxxH3BJ Overvoltage Protector Series
Ion-Implanted Breakdown Region
- Precise and Stable Voltage
- Low Voltage Overshoot under Surge
- Low Off-State Capacitance
Device Name
TISP4C125H3BJ
TISP4C145H3BJ
TISP4C180H3BJ
TISP4C220H3BJ
TISP4C250H3BJ
TISP4C290H3BJ
TISP4C350H3BJ
TISP4C395H3BJ
V
DRM
V
100
120
145
180
190
220
275
320
V
(BO)
V
125
145
180
220
250
290
350
395
MD-SMB-004-a
SMB Package (Top View)
R 1
2 T
Device Symbol
T
Rated for International Surge Wave Shapes
Wave Shape
2/10
10/160
10/700
10/560
10/1000
Standard
GR-1089-CORE
TIA-968-A
ITU-T K.20/21/45
TIA-968-A
GR-1089-CORE
I
PPSM
A
500
200
150
100
100
R
SD-TISP4xxx-001-a
....... TISP4C290H3BJ, TISP4C350H3BJ & TISP4C395H3BJ
are UL Recognized Components
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
For Standard
Termination Finish
Order As
TISP4CxxxH3BJR
For Lead Free
Termination Finish
Marking
Code
Order As
TISP4CxxxH3BJR-S 4CxxxH
Device
TISP4CxxxH3BJ
Package
SMB
Carrier
Embossed Tape Reeled
Std. Qty.
3000
Insert xxx corresponding to device name.
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
SEPTEMBER 2004 鈥?REVISED FEBRUARY 2006
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
BOURNS
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