BT151D STMicroelectronics, BT151D Datasheet - Page 7
BT151D
Manufacturer Part Number
BT151D
Description
Tripolar Overvoltage Protection For Telecom Line
Manufacturer
STMicroelectronics
Datasheet
1.BT151D.pdf
(10 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
THBT15011, THBT20011, THBT27011
2.1
Application circuits
Figure 9.
Figure 10. Protection for telephone set with ground key
LINE A
LINE B
LB
LA
E
T
E
S
T
R
E
L
A
Y
S
Line card protection
PTC
PTC
THBTxxxD
Ground key
THBTxxxD
GENERATOR
RING
RELAY
RING
Hook
LCP1521S
Application information
Speech
dialing
ringer
220
nF
- V
BAT
SLIC
7/10