TISP4XXXL3BJ Datasheet, PDF (1/15 Pages) Bourns Electronic Solutions – BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS

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
Ring-Tip Protection ..........................TISP4350L3BJ
Electronics Protection..........................TISP4070L3BJ
Ion-Implanted Breakdown Region
Precise and Stable Voltage
Low Voltage Overshoot under Surge
Device
‘4070
‘4350
V_DRM
V
58
275
V_(BO)
V
70
350
SMBJ Package (Top View)
R(B) 1
2 T(A)
MDXXBGE
Device Symbol
T
Rated for ‘60950 and ‘968 Wave Shapes
Surge
Type
Standard
Wave ^ITSP
Shape A
A TIA/EIA-IS-968 (FCC Part 68) ^{10/160 µs 50}
10/560 µs 30
B ^{TIA/EIA-IS-968 (FCC Part 68) 9/720 µs} 40
UL 60950 / ITU-T K.21 10/700 µs
SD4XAA
R
Terminals T and R correspond to the
alternative line designators of A and B
............................................ 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
Package
Carrier
For Standard
For Lead Free
Termination Finish Termination Finish
Order As
Order As
TISP4xxxL3BJ BJ (J-Bend DO-214AA/SMB) Embossed Tape Reeled TISP4xxxL3BJR 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 FEBRUARY 2005
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.