Need expert assistance in identifying the RF connector on the PCB

Thread Starter

astro power

Joined Sep 29, 2013
10
Hello There,

I have TP-Link M4 Wifi devices, i would like to extend the range with Antenna,
I opened the device, and there are two RF Plugs :
Face View:
123.jpg.
Size View :
122.jpg

Looks like MHF-SW23, but the diameter of MHF-SW23 is 1.92mm,

And on my PCB it about 1.35~1.4mm Diameter.

Can some one know which connector it is ?

Thank you
Tamir
 

Ya’akov

Joined Jan 27, 2019
8,974
Looks like MHF-SW23, but the diameter of MHF-SW23 is 1.92mm,

And on my PCB it about 1.35~1.4mm Diameter.

Can some one know which connector it is ?

Thank you
Tamir
Welcome to AAC.

I suspect a measurement error (~.55mm isn't a lot). I don't know how you measured, but it seems most likely for a couple of reasons.

That is definitely an I-PEX MH series connector which only comes in two sizes.​
The MHF-SW23 has a 2.3mm footprint and the MHF-SW18 has a 1.8mm footprint. The latter is discontinued but in any case it had a larger diameter. The former is common.​

I think your best bet is to buy a jumper cable with an MHF-SW23 and try it.

One thing to consider is that you may not legally be able to attach an external antenna to the device, depending on the laws where you are. It would not be legal (violating FCC regulations) in the US.
 

Thread Starter

astro power

Joined Sep 29, 2013
10
Hello Yaakov,

They you for reply me, It help me to realize, that there are some more RF connector which are out of use.

By old datasheet, i found that it match to MHF-SW20 (1.35mm).

Also Thanks for clarifying the legal issue, it didn't cross my mind.

Tamir
 

Ya’akov

Joined Jan 27, 2019
8,974
Hello Yaakov,

They you for reply me, It help me to realize, that there are some more RF connector which are out of use.

By old datasheet, i found that it match to MHF-SW20 (1.35mm).

Also Thanks for clarifying the legal issue, it didn't cross my mind.

Tamir
Nice catch! If you can‘t find the mating connector, you could probably solder SW23 in it’s place since the footprint is only 3mm different.

Yes, the regulatory stuff is usually very mysterious if you don’t deal with it regularly.
 
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