BT151D

Manufacturer Part NumberBT151D
DescriptionTripolar Overvoltage Protection For Telecom Line
ManufacturerSTMicroelectronics
BT151D datasheet
 


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THBT15011, THBT20011, THBT27011
Features
Bidirectional crowbar protection between tip
and gnd, ring and gnd and between tip and ring
Peak pulse current:
I
= 30 A for 10/1000 µs surge
PP
Holding current: I
= 150 mA
H
Complies with Telcordia standards
Telcordia GR-1089-Core, (second level) with
line series resistors
– 10/1000 µs, 1000 V
– 2/10 µs, 2500 V (first level)
– 2/10 µs, 5000 V
Description
Dedicated to telecommunication equipment
protection, these devices provide a triple
bidirectional protection function.
They ensure the same protection capability with
the same breakdown voltage both in longitudinal
mode and transversal mode.
A particular attention has been given to the
internal wire bonding. The “4-point” configuration
ensures a reliable protection, eliminating
overvoltages introduced by the parasitic
inductances of the wiring (Ldi/dt), especially for
very fast transient overvoltages.
Dynamic characteristics have been defined for
several types of surges, in order to meet the SLIC
maximum ratings.
February 2008
Tripolar overvoltage protection for telecom line
Figure 1.
GND
GND
RING
Rev 8
SO-8
Schematic diagram
1
8
TIP
TIP
2
7
GND
6
3
GND
4
5
RING
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BT151D Summary of contents

  • Page 1

    THBT15011, THBT20011, THBT27011 Features ■ Bidirectional crowbar protection between tip and gnd, ring and gnd and between tip and ring ■ Peak pulse current for 10/1000 µs surge PP ■ Holding current 150 mA ...

  • Page 2

    Characteristics 1 Characteristics Table 1. Absolute maximum ratings (T Symbol I Peak pulse current PP Non repetitive surge peak on-state current I TSM ( Hz) Tstg Storage temperature range Maximum junction temperature Tj T Maximum lead temperature for ...

  • Page 3

    THBT15011, THBT20011, THBT27011 Table 2. Thermal resistance Symbol R Junction to ambient th(j-a) Table 3. Electrical characteristics (T Symbol Parameter V Stand-off voltage RM I Leakage current at stand-off voltage RM V Continuous reverse voltage R V Breakdown voltage BR ...

  • Page 4

    Characteristics Table 5. Dynamic breakover voltages (transversal mode) Type Symbol THBT15011D V BO THBT20011D V BO THBT27011D See test circuit 3 for V dynamic parameters Figure 4. Test circuit 1 for I 220V 50Hz TEST ...

  • Page 5

    THBT15011, THBT20011, THBT27011 Figure 5. Test circuit 2 for BAT This test which allows confirmation of the holding current (I ) level in a functional test circuit. TEST ...

  • Page 6

    Application information Figure 7. Surge peak current versus overload duration 2 Application information Figure 8. Device connections 1. Connect pins and 7 to Ground to guarantee a good surge current capability for long duration disturbances ...

  • Page 7

    THBT15011, THBT20011, THBT27011 2.1 Application circuits Figure 9. Line card protection LINE LINE B Figure 10. Protection for telephone set with ground key RING GENERATOR PTC ...

  • Page 8

    Package information 3 Package information ● Epoxy meets UL94 order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on ...

  • Page 9

    ... Document revision history Date Revision Oct-2003 19-Feb-2008 Bidirectional Trisil Breakdown voltage Version Package 1 = SO-8 plastic Dynamic Packing (Blank) = Tube RL = Tape and reel Marking BT151D BT201D BT271D 7A Previous release Reformatted to current standards. Removed THBT16011D from 8 and Table 8. Updated Figure paragraph in Section 3. Added Ordering information scheme ...

  • Page 10

    ... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...