THBT15011 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'THBT15011' PDF : 11 Pages View PDF
THBT15011, THBT20011, THBT27011
Tripolar overvoltage protection for telecom line
Features
■ bidirectional crowbar protection between TIP
and GND, RING and GND and between TIP
and RING
■ peak pulse current:
IPP = 30 A for 10/1000 µs surge
■ holding current: IH = 150 mA
Complies with Bellcore standard
■ TR-NWT-001089-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 to meet the SLIC
maximum ratings.
SO-8
Figure 1. Schematic diagram
TIP 1
GND 2
GND 3
RING 4
8 TIP
7 GND
6 GND
5 RING
December 2010
Doc ID 3767 Rev 9
1/11
www.st.com
11
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