I've been looking at various TVS's and recently came across one I'd never seen before:
This particular part is used by Citel for a transient suppression, and concluded that this part had been released out in the world recently. It seems to be the equivalent solid-state version of a three-pole gas discharge tube.
Wishing to find a datasheet for said "DBC", I performed a Google search for some manufacturer, but ended up turning up nothing. I couldn't even find a theoretical reference.
So my question: is this a proprietary part by made by Citel, or is it a generic part that I did not recognize that is in common use, but failed to enter the correct search terms for?
Best Answer
The Citel main catalog (sorry, German only) shows several arrestors that use the DBC suppressors.
For example, the CGMJ8-POE-A:
It clearly has rows of diodes protecting the lines, as well as gas discharge tubes.
If the DBC just means "three low capacitance diodes" then that would match the diagram that goes with the CGMJ8-POE-A:
Given that, I'd say that DBC is just the Citel designation for using three low capacitance diodes on each line rather than designating some Citel made part.