SEPTEMBER 2004 – REVISED FEBRUARY 2006

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

TISP4CxxxH3BJ Overvoltage Protector Series

TISP4C125H3BJ THRU TISP4C395H3BJ

LOW CAPACITANCE

BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS

Description

Ion-Implanted Breakdown Region

- Precise and Stable Voltage

- Low Voltage Overshoot under Surge

- Low Off-State Capacitance

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

Device Symbol

SMB Package (Top View)

Rated for International Surge Wave Shapes

Wave Shape

Standard

A

2/10

GR-1089-CORE

500

10/160

TIA-968-A

200

10/700

ITU-T K.20/21/45

150

10/560

TIA-968-A

100

10/1000

GR-1089-CORE

100

MD-SMB-004-a

R1

2 T

T

R

SD-TISP4xxx-001-a

*RoHS Directive 2002/95/EC Jan 27 2003 including Annex

Device

Package

Carrier

Marking

Code

Std. Qty.

TISP4CxxxH3BJ

SMB

Embossed Tape Reeled

TISP4CxxxH3BJR

TISP4CxxxH3BJR-S

4CxxxH

3000

Insert xxx corresponding to device name.

For Standard

Termination Finish

Order As

For Lead Free

Termination Finish

Order As

....... TISP4C290H3BJ, TISP4C350H3BJ & TISP4C395H3BJ

are UL Recognized Components

Device Name

V

V

TISP4C290H3BJ

220

290

TISP4C350H3BJ

275

350

TISP4C145H3BJ

120

145

TISP4C125H3BJ

100

125

TISP4C180H3BJ

145

180

TISP4C395H3BJ

320

395

TISP4C220H3BJ

180

220

TISP4C250H3BJ

190

250