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I am experimenting with a VoIP phone from the NEC DT700 series, and it uses a connector like this to access a serial console on a UART:

Close up of connector in question

I would like to buy a matching plug so that I can easily plug in to the serial console as needed, as the small pins are only 0.8mm 1.25mm apart and so very difficult to attach probes to. However I do not know what to search for!

Does anyone know what this type of connector is called?

EDIT: I originally had this as 0.8mm pin pitch but as pointed out in the answer, it's actually 1.25mm.

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I believe the part number of that connector is DF13E-10DP-1.25V although the pitch on it is actually 1.25mm.

Here’s a link to the catalog. The mating part number is DF13-10DS-1.25C.

Unfortunately I couldn’t find any in stock so it may be hard to find, but you can harvest one from an adapter

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  • \$\begingroup\$ It certainly looks the part! On my connector, I measure 5.04mm between the five pins on one side. But apparently I didn't calculate it properly, because 5.04mm divided by 4 pins gives very close to 1.25mm, so you were right! \$\endgroup\$
    – Malvineous
    Oct 2, 2021 at 9:35
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    \$\begingroup\$ I found a seller on Aliexpress selling 28AWG 300MM DF13 1.25mm Pitch DF13 Series 1.25 mm pitch Connector Wire Harness double head which looks like what I'm after. \$\endgroup\$
    – Malvineous
    Oct 2, 2021 at 9:43
  • \$\begingroup\$ @Malvineous Please note that 1.27mm is the most common pitch and 1.25mm is an oddball one. It's pretty hard to measure with a caliper, though if you get 5.04 the pitch might be 1.00mm which is also a common one. \$\endgroup\$
    – Lundin
    Oct 11, 2021 at 7:43

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