Protection Devices
Programmable Telephony over voltage protector
FXS lightning soution, over voltage protector.
The SVG series is for lightning protection solution on FXS port for VoIP application. Compliant with ITU-T K.21, Part68 and GR1089 regulation.
This device is especially designed to protect subscriber line
card interfaces (SLIC) against transient overvoltages.
Positive overloads are clipped with 2 diodes. Negative
surges are suppressed by 2 thyristors, their breakdown
voltage being referenced to -VBAT through the gate. This
component presents a very low gate triggering current (IGT)
in order to reduce the current consumption on printed
circuit board during the firing phase. A particular attention
has been given to the internal wire bonding. The “4-point”
configuration ensures reliable protection, eliminating the
overvoltage introduced by the parasitic inductances of the
wiring (Ldi/dt), especially for very fast transients.