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Does anybody know what kind of connectors these are?

  • The size of the holes on the right picture is about 5 mm
  • The inner size of the holes on the left picture is about 3 mm

enter image description here

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    \$\begingroup\$ It uses crimpable male and female inserts if that helps narrow things down. \$\endgroup\$ – Andy aka Aug 4 '18 at 17:08
  • \$\begingroup\$ @Andyaka Thanks ... I doubt I can ever use them, but I'm curious (and always good to learn). \$\endgroup\$ – Michel Keijzers Aug 4 '18 at 17:10
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    \$\begingroup\$ What's the pitch? i.e. centre to centre of the holes. Is it the row spacing the same pitch? \$\endgroup\$ – Tom Carpenter Aug 4 '18 at 17:10
  • \$\begingroup\$ @TomCarpenter around 6mm (which fits with your answer). \$\endgroup\$ – Michel Keijzers Aug 4 '18 at 17:19
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They appear to be Molex "MLX" power connectors (series 42021).

Molex MLX Connector Image

Here is the 6-way variant pictured above, part number 50-84-1065.

They are designed for 2.13mm pins, which fits the ~3mm hole measurement. They have a pitch of 6.35mm, which matches with the ~6mm measurement.

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  • \$\begingroup\$ Confirmed that the pitch is around 6mm :-) ... thank you; I never saw these before. \$\endgroup\$ – Michel Keijzers Aug 4 '18 at 17:18
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This connector series is also available in the old AMP line that is now supplied by TE connectivity. Their series is called the Universal MATE-N-LOCK.

enter image description here

(Picture source at Digikey Product Page)

In today's use of much lower power in most gadgets and devices these connectors are being used less and less. I still like to use them for power delivery because of their relative low cost and higher current carrying capacity per pin over other 2.54mm contact spacing connectors and headers.

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  • \$\begingroup\$ Thanks for the clarification. Maybe I can use them in case I want to use multiple LED strips. \$\endgroup\$ – Michel Keijzers Aug 4 '18 at 17:51

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