As the title suggests I've come across a capacitor where the sleeve appears to have shrunk and retreated up the side of the capacitor body.
Anyone know what the causes of this sort of thing would be? The capacitor is a Rubycon BXA 400V 2.2uF, capacitance measures fine but ESR is a bit high at 16 ohms. No signs of bulging or leaking.
I'm not trying to repair anything but I'm just curious as to what causes the sleeve to pull back like this? It came out of an old 8w cfl bulb and this capacitor caught my eye, so maybe its just heat related? I couldn't find the missing bit inside the lamp base so it hasn't flaked off.
Anyone know what the causes of this sort of thing would be? The capacitor is a Rubycon BXA 400V 2.2uF, capacitance measures fine but ESR is a bit high at 16 ohms. No signs of bulging or leaking.
I'm not trying to repair anything but I'm just curious as to what causes the sleeve to pull back like this? It came out of an old 8w cfl bulb and this capacitor caught my eye, so maybe its just heat related? I couldn't find the missing bit inside the lamp base so it hasn't flaked off.
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