Referring back to the UY1N in Post#5, according to that screen shot it shows a PIV of 500V, a IFSM of 400mA and a IFRM of 400mA, something's wrong there to me, looking at the Philips valve data the max. Vfk is shown as 500V which might be where they got the PIV figure from.
The figures in the table in the attached screen shot shown below are the results of figures I inputted that were from the manufactures manual for the Tesla Talisman 305U receiver which uses a UY1N rectifier.
With a mains input voltage of 220 VAC, the warning box shown in the screen shot pops up when the simulation is started stating that the rectifiers PIV has been exceeded, and if the load resistance is changed to reflect a load current of 130mA with the same mains input voltage and surge limiter of 125 Ohms the simulation says that the IFSM has been exceeded...
http://www.r-type.org/pdfs/uy1n.pdf
Lawrence.