It doesn't happen often so I thought I'd look up the Sens historical success in Anaheim against the Ducks franchise. Turns out, it's not great. All-time the Sens are 5-8-2-0 in Anaheim and trail in pretty much every major category. But here's the thing, the Sens didn't earn their first win on the road against the Ducks until January 12th, 2000 which is 6+ years since that franchise was even founded. So more recently the numbers are much closer (5-5-0 since Y2K).
Looking on the individual side of things, Daniel Alfredsson is the team's all-time leading scorer in Anaheim with 9 points (2G + 7A) in 10 games played. As far as active players go, then look no further than former Duck Bobby Ryan who has a pair of points (1G + 1A) in 3 games with the Sens in Anaheim.