TISP4350L3BJR【PDF 1/13 页】SURGE SUPP 275V BIDIR DO-214AA

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TISP4070L3BJ, TISP4350L3BJ

BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS

TISP4xxxL3BJ Overvoltage Protector Series

MODEM Protection against:

- TIA/EIA-IS-968 Type A & B surge

(formally FCC Part 68)

- UL 60950, Clause 6. power cross

- CSA 22.2 No. 60950, Clause 6. power cross

SMBJ Package (Top View)

Ring-Tip Protection

..........................TISP4350L3BJ

R(B) 1

T(A)

Electronics Protection..........................TISP4070L3BJ

MDXXBGE

Ion-Implanted Breakdown Region

Precise and Stable Voltage

Low Voltage Overshoot under Surge

Device

‘4070

‘4350

V DRM

275

V (BO)

350

Device Symbol

Rated for ‘60950 and ‘968 Wave Shapes

S urge

Type

Standard

Wave

Shape

I TSP

SD4XAA

TIA/EIA-IS-968 (FCC Part 68)

10/160 μ s

10/560 μ s

Terminals T and R correspond to the

alternative line designators of A and B

TIA/EIA-IS-968 (FCC Part 68) 9/720 μ s

UL 60950 / ITU-T K.21 10/700 μ s

............................................ UL Recognized Components

Description

These devices are 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. These protectors are guaranteed to voltage limit and withstand the listed lightning surges in both polarities.

After a Type A surge the equipment can be non-operational or operational. An operational pass requires the two high current Type A surges

(200 A, 10/160, and 100A, 10/560), to be reduced to within the TISP4xxxL3BJ ratings (50 A, 10/160 and 30 A, 10/560).

How To Order

Device

TISP4xxxL3BJ

Package

BJ (J-Bend DO-214AA/SMB)

Carrier

Embossed Tape Reeled

Order As

TISP4xxxL3BJR-S

Insert xxx value corresponding to protection voltages of 070 and 350

After a Type B surge, the equipment must be operational. As the TISP4xxxL3BJ has a current rating of 40 A, it will survive both Type B surges,

metallic (25 A, 9/720) and longitudinal (37.5 A, 9/720), giving an operational pass to Type B surges.

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

AUGUST 1999 - REVISED JANUARY 2007

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

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