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Topic: About this resettable fuse, what are the bents for (Read 843 times) previous topic - next topic

liudr

Oct 23, 2010, 02:09 am Last Edit: Oct 23, 2010, 02:10 am by liuzengqiang Reason: 1
What are the bents for?

http://www.alliedelec.com/search/productdetail.aspx?SKU=4200063

I have a few of these. I don't know what to do with the bents. Are they just visual marks so they're not confused with caps?

James C4S

Probably to keep them away from the PCB.

As the current approaches (or exceeds) their cut-off, they will physically expand due to heat breaking the circuit.  By making sure the element is away from the PCB, it won't have a heat-sink effect.
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RuggedCircuits

I think they're a form of retention to keep the part in place while it's being soldered.

--
The Quick Shield: breakout all 28 pins to quick-connect terminals

Osgeld

I have caps that look the same, it just allows you to "snap" them into a board

though I could be totally wrong
http://arduino.cc/forum/index.php?action=unread;boards=2,3,4,5,67,6,7,8,9,10,11,66,12,13,15,14,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,86,87,89,1;ALL

retrolefty

They put those there to make the part look cooler and mysterious.

Lefty

TheLaw

#5
Oct 23, 2010, 06:25 am Last Edit: Oct 23, 2010, 06:33 am by TheLaw Reason: 1
I believe it is what osleg said.Not sure but its common on a lot of through hole parts, so it's not to differentiate it from a cap. There are plenty of caps with these bends in them.

liudr

Thanks. I see. Well, in my case I forced it into a couple of holes for a diode. :)

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