Polyphenylene Sulphide (PPS) Capacitor. Help!

[sine_wave]

I have a project that I'm working on that calls for 4 x 4700pf Polycarbonate capacitors. After days of searching for those elusive polycarbs, I learned that Polyphenylene Sulphide (PPS) has replaced it (yep, polycarbonate is a thing of "the past" now.)

So, the search began for some 4700pf PPS caps. At this point I should mention that this project is 100% 'through-hole'. It's like a puzzle... If I'm lucky enough to find PPS-type caps, it feels like winning the lotto getting them in 4700pf. Finally, I find them in 4700pf.... But they're all SMD  . Oh yeah, I didn't mention that the lead spacing is 5mm.

Personally, I think I must be doing something wrong when I look for these things, or are they really that difficult to find? I checked WIMA because they instantly came to mind but the only place Polyphenylene Sulphide show up on their site are through one of their SMD capacitor pages.

Point is, if anyone can point me to a place that sells what I need (either the older Polycarb cap technology or the newer Polyphenylene Sulphide "substitute") I would be super-duper grateful to them. I'm a big believer in staying as close as one can to whatever parts an old circuit calls for so I guess this is where my "searching high and low" attitude comes from!

Cheers,
John

 

[gyraf]

I have a project that I'm working on that calls for 4 x 4700pf Polycarbonate capacitors.

Maybe re-compute: WHY do you need polycarb? What exact application requires this?

Jakob E.

 

[Samuel Groner]

In most cases ceramic C0G is a perfect replacement--just observe the required voltage rating.

Samuel

 

[kato]

Modern equivalent is polypropylene. No sense in killing yourself over something they don't make anymore.