Dumb question about electrical stuff

[dave_the_nerd]

So, in this cable, there's this doodad here.

Looking inside, it looks like they just folded the wires over a couple times to shorten them, stuck them inside a short square piece of plastic, and heat-shrunk it in place.

Does this have a proper name, and if so, what? I've had to refer to it three or four times already this morning, and I am sick of feeling like a moron. "Heat shrink thingy...?"

Thanks!

 

[PottedMeat]

http://en.wikipedia.org/wiki/Ferrite_bead

but if it is a plastic core, then it's just a thing preventing the cable from being ripped out of its enclosure.

 

[dave_the_nerd]

Oooooohhh.... okay. Cool.

Thanks!

 

[balsa model]

1. Wires wound around a ferrite: an EMI filter
2. Wires wound around plastic or nothing: either:
2(A). a strain relief
2(B). a fake EMI filter

 

[donfm]

Any question that remains unanswered is not dumb to me....

 

[ahgem2000]

miss my brother so much

 

[ahgem2000]

sorry wrong window