Electronic – Smallest stepper motor (that one could buy)

stepper motor

I'm looking into embedding a stepper motor into a wearable device like a wrist watch. I've found these on digikey:


The resolution is great and it's aligned with what I need, but I'm afraid it will draw too much power (100mA @ 15V), and I would appreciate something even smaller. There's no torque requirement. It will just turn a handle.

Do you know a source where to buy even smaller (in power and size) stepper motor?

Best Answer

You could "relatively easily" make one yourself.
A few coils (2 or 3) and a toothed disk.
Performance would be modest but easily enough for what you want. I can discuss what would be involved in more detail if this sounds interesting.