I asked Coilcraft if they had any high-voltage inductors and they said that they don't rate their inductors for voltage breakdown. I was hoping to string together a few surface-mount parts.
Web searches don't turn up much, mostly references to custom capability.
I don't do RF, but it seems to me that RF folks must need high-voltage inductors now and then. Anybody know of catalog parts? Suppliers? I need a few mH at pretty low current, 10s of mA, maybe 6KV or so peak voltage.
I guess I could make my own if I had to. A ferrite rod, inside a good insulated plastic tube like Kapton maybe, could be wound with a single layer of double-formvar magnet wire. Nuisance to make and mount.