toshiba sd-3950: help me identify a damaged part

[xcortes]

While doing a couple of holes to fix an external isolation transformer one of the drills went a little bit to far damging the small T801 transformer. The only identification in the part is the number 183Y0R5mPZ on the top. Does anyone know what kind of transformer is this so that I can find a suitable replace part?

Thanks,

xavier