component search

I am searching for the following components or their equivalent. I am in Australia and seem to have exhausted my options here. Any help would be appreciated.
t410700t triac (st microelectronics)
bta 12700sw triac (st microelectronics)
I would also like the equivalent for
TIP 33c transistor
btb06700sw triac both produced by st microelectronics

thanks librian 1969