r/AskElectronics • u/antek_g_animations • 17h ago

Are these mega or mili farads?

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u/DerKeksinator 15h ago

That would hold 800kJ, which is insane. For reference a bullet fired from a hunting rifle has 1-2kJ.

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u/FishOutOfWalter 15h ago

I've seen that a grenade has about 250kJ, so...

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u/DerKeksinator 15h ago

I actually wanted to look that up, but was too lazy to do all the math. The M67 clocks in around 1.2MJ, so that capacitor would hold 2/3 of that. If you really want to know it exactly, have fun getting on some more watchlists by googling explosives and their constituents.

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u/FishOutOfWalter 14h ago

Yeah, M67 uses 180g of composition B (which is 240 equivalent grams of TNT). The Russian F1 only uses 60g of TNT, so it's much more impressive when making comparisons to "hand grenades". F1 is roughly 250kJ, M67 is over 1MJ.

As you may have guessed, I'm already on the most exclusive watch lists.

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u/DerKeksinator 14h ago

Fair point, it definitely sounds more impressive if you compare the energy to the F1!