Buyer beware on eBay caps. There are 10uF 63V MKC344 caps listed as polycarbonate, but they are PETP based on the part numbers and the chart below. The 15 indicates PETP and 10% tolerance. No Philips MKC <100V and no value larger than 6.8uF. The blue 6.8uF 100V 344-21 look correct. Note that lead spacing on the radial PC caps is 27.5mm, and the PCB takes 37.5mm, so a wire is needed.
The size and dimensions can be helpful in determining authenticity. PETP(polyester/mylar) < PC < PP < PTFE(teflon).
Philips MKC Chart
Philips MKC data sheet
ERO (Vishay) MKC data sheet
WIMA MKC data sheet
The size and dimensions can be helpful in determining authenticity. PETP(polyester/mylar) < PC < PP < PTFE(teflon).
Philips MKC Chart
Philips MKC data sheet
ERO (Vishay) MKC data sheet
WIMA MKC data sheet
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Software: Moode 8.3.3
Source: Win 10 NAS
Software: Moode 8.3.3
Source: Win 10 NAS