BT201D(2008) Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

BT201D
(Rev.:2008)

Tripolar overvoltage protection for telecom line

STMicroelectronics 

Application information

THBT15011, THBT20011, THBT27011

Figure 7.

Surge peak current versus overload duration

ITSM(A)

10

9

8

7

6

5

4

3

2

1

0

1E-2

1E-1

t(s)

1E+0

1E+1

F=50Hz

Tj initial=25°C

1E+2

1E+3

2

Application information

Figure 8. Device connections

TIP 1

2

GND

3

RING 4

8 TIP

7

GND

6

5 RING

1. Connect pins 2, 3, 6 and 7 to Ground to guarantee a good surge current capability for

long duration disturbances.

2. To take advantage of the" 4-point“ structure of the THBT, the TIP and RING lines have

to cross the device. In this case, the device will eliminate the overvoltages generated by

the parasitic inductances of the wiring (Ldi/dt), especially for very fast transients.

6/10

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