If you're reading this you probably already know Mazda doesn't sell the connector without the harness. I just wanted to put this here so others can get what they need a little easier.
After a long Google image search under " alternator connectors " and a trip to the salvage yard, I found that the older Dodge Neon alt connectors are a direct fit. I was looking at 95's.
** Edit: After looking at more alternator pics it looks like they can be found on 95'-97' and possibly 95'-01' Neons.
The alt is a bit of a pain to get to. It's located behind and underneath the engine on the passenger side. You can either crawl under or turn the wheel full right to reach through the opening behind the passenger side tire. Feel for the connector, push the tab, wiggle it loose and snip it off.
I'm pretty sure your salvage yards will have rows of Neon's too. Much easier then trying to find a non picked over 7. I grabbed 2 for $6.00

FD3S Alternator

95' Neon Alternator
Edit: Here is another source for the connector. Part number C1900
http://store.alternatorparts.com/partnoc1900.aspx