field collection items are not in panels
I think the method depends on what you are trying to achieve by doing this.


You could write a plugin for panels to make it recognise field collections.
It looks like Fieldable Panels Panes might help.
You could use mini-panels to wrap the fields (part of panels)
You could just put the fields up individually


Hope this helps, without your intended use-case in your question it is difficult to provide a meaningful answer.