THBT200S Datasheet, PDF (5/7 Pages) STMicroelectronics – TRANSIENT VOLTAGE SUPPRESSOR FOR SLIC PROTECTION

APPLICATION CIRCUIT
Typical line card protection concept
RING
GENERATOR
THBT200S
LINE A
T
E
S
T
R
E
L
A
Y
S
LINE B
PTC
RING
RELAY
PTC ^THBT200S
-V
bat
TIP
SLIC
THDTxxx
or
LCPxxx
RING
FUNCTIONAL DESCRIPTION
Line A
Tip
LINE A AND LINE B PROTECTION.
Each line (TIP and RING) is protected by a bidi-
rectional Trisil, which triggers at a maximum volt-
age equal to the VBO.
Line B
Ring
5/7
®