EPCOS B32232 series is an example of a film cap in a metal axial can:
http://www.epcos.com/inf/20/20/db/fc_05/MKT_B32232.pdf
Digikey part number 495-3542-ND seems to match your component
superficially at least.
You will find a lot of film caps with pulse handling capability
specifically called out these days. Especially used in switching power
supplies and electronic ballasts at line voltage.
Tim.
Thanks so much for your assistance. Invaluable to one whose knowledge in this
area is so... basic.
--
John English