How do I go about identifying an unknown connector, either from spec or measurement?
For example, I've got a GM4632-730 DC motor, which unfortunately came without the cable (and to make things worse, the connector partially broken)
All that's obvious to me is number of pins (and number of rows), pitch, and 'shape'. The latter is tricky to describe or search for.
Finding The JST Connector You Need (YouTube) gives a good understanding on relationship between pitch size and JST model numbers. Wikipedia is even better, with links to relevant datasheets. While I measured the pitch at about 2.5mm, the shape doesn't seem to match any of the JST datasheets, and those I've got on hand don't quite fit.
Molex seems the next thing to try, but Wikipedia is not nearly so helpful covering only PC connectors. Where do I go next to work this out? What other common formats are there?
The Banggood.com page even includes a picture of the appropriate connector, and makes it clear it differs from those I've got here and have tried. Is there anything else I can do with this end?
While this came about because I'm trying to find a specific connector and that remains my immediate issue, I'm more interested in how in general one can identify such connectors; short of holding stock of a variety and trying them all.