Which components can be labelled as "BD" on a printed circuit board?

Question

In the process of repairing some consumer electronics, I encountered some SMDs labelled BD on the silkscreen:

As this one has clearly blown, I'm interested in knowing what it could be.

Here is another component on the board, having the same label, that seems to be in better shape:

Note for people that might land here for a more general case: BD is a common abbreviation for "board".

Could it maybe stand for "Bead", i.e. Ferrite Bead? They are commonly named FB, but who knows. — Klas-Kenny, Nov 30 '21 at 07:33
It kind of looks some traces are fried too, so repairing might not be as trivial as replacing the component. — Lundin, Nov 30 '21 at 12:51
As for what BD stands for... Bad Designator? :) It's clearly a ferrite bead, I've seen FE or FB for those. — Lundin, Nov 30 '21 at 12:54
I'm pretty sure BD standard for "whatever **B**uddy, i **D**o what i want" — crasic, Nov 30 '21 at 17:32

score 13 · Accepted Answer · answered Nov 30 '21 at 07:33

13

They are ferrite BeaDs.

The one that died probably did so because of a failure (short) elsewhere.

answered Nov 30 '21 at 07:33

Spehro Pefhany

score 8 · Answer 2 · answered Nov 30 '21 at 07:34

8

It's a ferrite bead by the look of it. Sometimes the reference used is FB and, I guess you can make it what you want if you are the designer.

answered Nov 30 '21 at 07:34

Andy aka

2 Answers2