As part of the #Shrimp Arduino-compatible circuit design described at http://shrimping.it
we suggest a 10uF electrolytic capacitor to smooth the power supply following a discussion here on the forum.
However, I'm concerned that working with these components in a classroom could be dangerous, given the possibility (guarantee) of someone reversing the capacitor even in a 5V circuit.
Is this as serious as I fear?
Are there mitigating approaches I can take, such as reducing the capacitance to 1uF, which was an option discussed during circuit design (I'm guessing this means less explosive material) or selecting capacitors which are designed to be safer. Obviously leaving it out is an option, but I gather it will be needed for certain projects to keep the power supply regular.
Are mitigations such as gloves and eye protection considered to be enough protection when powering up a test circuit at 5V with a potentially reversed electrolytic? Other thoughts?
Currently the component I'm distributing in kits (on a non-commercial basis) are these...http://www.taydaelectronics.com/10uf-25v-105c-radial-electrolytic-capacitor-5x11mm.html
Glad of your contributions.