Molex Connector Vs Cheap far east connectors

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Hi All

 

I am in the process updating my PCB.

 

My current PCB uses the following ufl and nano sim card connector. 

 

https://www.molex.com/molex/products/part-detail/rf_coax_connectors/0734120114

and 

https://www.molex.com/molex/products/part-detail/memory_card_socket/1042240820

 

 

With a little research on Alibaba, i have found various manufacture or suppliers that are selling local brands at a fraction of the price.

 

Has anyone ever used these cheaper manufactures and could advice how good in quality? For example the Ufl connector is there a risk they might effect impedance due to low quality?

 

Thanks

 

 

 

 

 

 

 

 

 

 

This topic has a solution.

Thanks

Regards

DJ

Last Edited: Sun. Nov 15, 2020 - 02:18 PM
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Impedance is not likely  an issue. What is more probable is deterioration of the contact surfaces over time and perhaps inappropriate springiness so that the contacts become intermittent with age. It is also probable that you won't be able to tell that this is happening for some months or maybe years.

 

Jim

 

Until Black Lives Matter, we do not have "All Lives Matter"!

 

 

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Hi Jim

 

Thats very interesting. Have had much experience in such low quality connectors?

 

The pricing drop is very attractive for example a Molex nanosim connect would be at $ 0.40 at volume and a nanosim from the far east would be $0.08.

 

But i guess for a peace of mind, it might be better to stick with Molex.

 

 

 

 

Thanks

Regards

DJ

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You can buy a lot of header pins now that a magnet picks up nicely!!

 

The Molex parts likely come from some machine in China...if you can find who's, you might gain a better price.

 

It's a dog-eat-dog world for commodity parts.    I used to get some magazine, like inductor world or magnetics monthly ...It was interesting to notice mentions of Chinese toroids buried in a few articles:

Last year, before Chinese toroids appeared in volume and pricing dropped 80%, resulting in 75% of US inductor factories closing & moving operations, it became increasingly clear that.....  (these may not be the exact details).

 

Apparently, in about a year or so timeframe, most US toroids rapidly went to China after pricing suddenly plummeted.

 

 

When in the dark remember-the future looks brighter than ever.   I look forward to being able to predict the future!

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Yes, i tried to find if there is an identical part, but seems molex are the only ones doing this footprint

 

https://www.molex.com/molex/prod...

 

Thanks

Regards

DJ

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Yes, i tried to find if there is an identical part, but seems molex are the only ones doing this footprint

Scare the competition with a custom footprint? 

When in the dark remember-the future looks brighter than ever.   I look forward to being able to predict the future!

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djoshi wrote:
Has anyone ever used these cheaper manufactures and could advice how good in quality?

 

Better question....what is the life expectancy of your product?  Both physically and market wise? 

 

If you are making a consumer grade device then go for the cheaper part as teh odds of the customer returning it for repair/replace is pretty low(at least here in the USA).  If your product is used in a commercial application then your customer should be prepared to pay the price for the name brand part.

 

At teh same time, for what the part costs, you use the cheap one, and keep a bunch on hand for the occasional repair should it fail.  The end user gets the repair for free, but must pay for shipping in both directions devil

 

Problem solved.

 

Right Side Jim

I would rather attempt something great and fail, than attempt nothing and succeed - Fortune Cookie

 

"The critical shortage here is not stuff, but time." - Johan Ekdahl

 

"Step N is required before you can do step N+1!" - ka7ehk

 

"If you want a career with a known path - become an undertaker. Dead people don't sue!" - Kartman

"Why is there a "Highway to Hell" and only a "Stairway to Heaven"? A prediction of the expected traffic load?"  - Lee "theusch"

 

Speak sweetly. It makes your words easier to digest when at a later date you have to eat them ;-)  - Source Unknown

Please Read: Code-of-Conduct

Atmel Studio6.2/AS7, DipTrace, Quartus, MPLAB, RSLogix user

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Consider the issue of obtaining a replacement part or one for making a test jig years from now --

 

  A common catalogue connector available at Digikey, RS, etc.

 

-or-

 

  An off-the-wall connector with odd dimensions from an unknown manufacturer.

Last Edited: Sun. Nov 15, 2020 - 01:13 AM
This reply has been marked as the solution. 
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Life expectancy is several years, this is more of a industrial application. Last thing i would want is after a year or so the PCB had to replaced. The rework time factor would be most costly for more. Best to stick with Molex, as i been happy with them so far.

 

 

Thanks

Regards

DJ

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Please mark your answer #9 as the solution

 

jim

I would rather attempt something great and fail, than attempt nothing and succeed - Fortune Cookie

 

"The critical shortage here is not stuff, but time." - Johan Ekdahl

 

"Step N is required before you can do step N+1!" - ka7ehk

 

"If you want a career with a known path - become an undertaker. Dead people don't sue!" - Kartman

"Why is there a "Highway to Hell" and only a "Stairway to Heaven"? A prediction of the expected traffic load?"  - Lee "theusch"

 

Speak sweetly. It makes your words easier to digest when at a later date you have to eat them ;-)  - Source Unknown

Please Read: Code-of-Conduct

Atmel Studio6.2/AS7, DipTrace, Quartus, MPLAB, RSLogix user