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I'm working with these planetary geared micro stepper motors which come without a datasheet or any information from the sellers. I'm having a trouble figuring out how I should mate the FPC cable, can anyone tell me what kind of THT or SMD socket it'd fit?

Edit: This is for an academic research paper, and a researcher wants to use this motor because of it's small size. I know using ebay for component procurement is a horrid thing.

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Orbitronics
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  • [What to check for when buying an electronic component or module](https://electronics.stackexchange.com/questions/504044/what-to-check-for-when-buying-an-electronic-component-or-module). (or, you get what you pay for). – Andy aka Apr 12 '21 at 13:42
  • @Andyaka Unfortunately a researcher in my group insisted we use this motor in a prototype for a paper since it was very difficult finding a suitable alternative with better support (we needed the stepper to fit in a 4mm^2 space). – Orbitronics Apr 12 '21 at 13:44
  • Anyone performing technical research should never use peebay for any reference material on system components. I suggest that they are not qualified to research what you should or shouldn't use. You can tell them that if you want. – Andy aka Apr 12 '21 at 13:50
  • @Andyaka I just pasted that over ;p If this was for anything other than one research paper then I would have refused the moment it went to ebay. Still though, it's peaked my interest in knowing what FPC cable that is, any ideas? – Orbitronics Apr 12 '21 at 14:00
  • You could, on a whim, design mating PCB pads and use low-temp solder to reflow it together for a permanent, socket-less fit. – rdtsc Apr 12 '21 at 14:36
  • @rdtsc thanks, i thought about doing this, I didn't know FPC cables can take the heat. I'll make sure to use the low temp chipquik solder. – Orbitronics Apr 12 '21 at 16:06
  • If the [cable](http://www-eng.lbl.gov/~shuman/NEXT/CURRENT_DESIGN/TP/MATERIALS/FFC_history.pdf) is [polyester](https://www.onlinetextileacademy.com/properties-of-polyester/) in base composition, it can take up to about 275°C. If [polyamide](https://aerosusa.com/applications-properties-and-uses-of-polyamide/), 500°C. Low-melt solders go down to about 205°C I think (while maintaining significant strength.) – rdtsc Apr 12 '21 at 16:40
  • It's probably a custom fpc that is made for this motor only. You can easily find out the pins with a MM. The more important question is, how are you going to drive the motor? – Sim Son Apr 12 '21 at 16:55
  • You can solder fpc's like this with standard Sn/Pb solder if you're careful. Fine tip, finest solder you can find, and allow time to cool between each pad. Although, I'd just solder direct to the pins on the motor. – SiHa Apr 12 '21 at 19:47
  • I've already soldered directly to the FPC and am using the motors fine, I want a nicer solution. Soldering directly to the pins was attempted but was slightly sketchy since it's just a plastic pole with the coil ends wrapped around. – Orbitronics Apr 12 '21 at 20:05

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Look at:

  1. JAE FA10 connectors family

  2. Molex Flexi-Latch Right-Angle FPC-to-Board

I googled "motor fpc connector"

Enrico Migliore
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