Panasonic Corp has a better chance than rival Sony Corp of surviving Japan's consumer electronics slump because of its unglamorous but stable appliance business of washing machines and fridges, credit rating agency Fitch said Friday.

Fitch cut Panasonic's rating by two notches to BB and Sony three notches to BB minus on Thursday, the first time one of the three major ratings agencies have put the creditworthiness of either company into junk-bond territory.

Rival agencies Moody's and S&P rate both of Japan's consumer electronic giants at the same level, just above junk status. Moody's last cut its rating on Panasonic on Tuesday.

Panasonic "has the advantage of a relatively stable consumer appliance business that is still generating positive margins", Matt Jamieson, Fitch's head of Asia-Pacific, said in a conference call on Friday to explain its ratings downgrades.

But at Sony, he added, "most of their electronic business are loss making, they appear to be overstretched."