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No.1539842 View ViewReplyOriginalReport
Alright, I’ve got a real challenge today.

I’m trying to replace the main capacitor in a Leica SF 64 camera flash (basically a rebadged Metz unit). The cap inside is a Rubycon, sleeve says “331 69 0047 (PET)” but there’s no capacitance or voltage printed anywhere.

Does anyone know the actual rating/specs for this part, or what the correct replacement would be? Has anyone cracked open an SF 64 / Metz 64 AF-1 and identified the flash cap before?

Cap is about 25mm diameter × just under 45mm length if that helps. I know photo flash caps are usually in the ~330 V, 300–500 µF range, but I’d like to be sure before ordering.

Should I just reach out to Rubycon with the part code, or is there already a known cross-reference?
(And yes, I’m discharging safely before handling.)