Assuming I'm thinking of the same thing, crimped leads are solely a manufacturing device to allow them to insert into through holes in a PCB at a specific height, or, more importantly, to provide retention so that the part doesn't fall out when the board is flipped over for hand soldering.  They have nothing specific to do with the performance of the component itself, other than for manufacturing repeatability. 

Assuming I'm thinking of the same thing, crimped leads are solely a manufacturing device to allow them to insert into through holes in a PCB at a specific height, or, more importantly, to provide retention so that the part doesn't fall out when the board is flipped over for hand soldering.  They have nothing specific to do with the performance of the component itself, other than for manufacturing repeatability. 

Ceramic capacitors are rather brittle and so they do not like their leads getting tugged on. Adding these crimps forces the capacitor to sit off the board with a few mm of relatively flexible lead in between. This will isolate the capacitor from forces that it would otherwise experience during vibration, board flexing/bending, thermal expansion/contraction, etc. By providing the crimped leads at the factory, the board house does not require a machine to add those in-house.

try and read the article in the attached link

http://electronics.stackexchange.com/questions/135335/why-do-they-crimp-capacitor-leads

It was so that i answered an other question of mohammad in this page. The question was about the delay time in analog and digital system. I am wondering from the negative votes which i have. no one has detected that i may answered another question  and attracted my attention for this  inconvenience through a message to me. even mohammad did not make that. I think  i answered many questions that are useful for the researcher  of the research gate. I do not deserve all these negative votes

Crimping the legs of the capacitor is to make its assemble on the the through- hole PCB easier  keeping  the body of the capacitor at sufficient height from the surface of the PCB. I think that the question is already correctly answered from the colleagues before me.

An error may occur but how do the people treat this error. I am sorry for the forum.

Dear all Thank you very much for your helpful answers.

The crimp offsets the component from the PCB surface, yes this helps reduce  heat and mechanical stress from the part  but also some flux removal  fluids attacking  some types of cap body in older PTH flow soldering machines . (e.g. some Polystyrene caps)

In addition to the reasons mentioned, epoxy dipped capacitors often have the epoxy extend onto the leads. By putting a crimp in the leads below that point, it prevents the epoxy from interfering with the solder flow into the hole. This results in more consistent solder joints during wave solder.

hi

you can see

http://electronics.stackexchange.co...5/why-do-they-crimp-capacitor-leads