4

Adding to the other answer, A is dependant on the number of pins, which is common in connector datasheets (the same datasheet is used for a series of connectors with varying pin numbers). So A is 1mm * number of spaces between pins, B is A + 2.1mm, and so on. So for a 4 pin connector, A is 3mm, B is 5.1mm, C is 7mm.


4

You can use your real-world experience with units (or seeing which unit conversion is consistent) to know whether it is inches[mm] or mm[inches]. In this case it is obviously (if you have ever looked at a metric/imperial tape measure or rule) inches[mm] because 1 inch is humongous while 0.039mm is too small to see. Furthermore, \$0.039mm \ne 1 inch\$ so the ...


4

Pin 1 is "positive" if your system is setup like that. THERE IS NO REASON IT COULDN'T BE NEGATIVE! "Positive Tip" is something of a common standard, but there are examples where this is not true (for example - guitar pedals pretty much are all negative-tip, positive shield) Pin #3 is a switch that is 'normal closed'. When no plug is in the jack, pins #...


2

This is a Stäubli POAG connector. For more detailled information on the product, refer to the catalogue: https://ec.staubli.com/AcroFiles/Catalogues/ME_Med-Main-11014109_(en)_hi.pdf or visit the website www.staubli.com/electrical


2

Use a 2-pin molex connector pair similar to this. One of the pieces gets soldered into the board, the LED is soldered at the end of the wires.


1

That looks like an m3 or m2.5 broaching nut, but by the looks of it, it is not a solderable nut. It looks more like a press fit broaching nut, that is used for pressing into sheet metal or plastic. (you can tell by the corrugation on the sides which is typical of broaching nuts.) A better way to do this is to use a solderable nut that is built for PCB's like ...


1

What is a good way to connect a LED to a PCB? Use a ZIF (zero insertion force socket). Pull the handle to release the contact clamps, put the LED in and push the handle back to clamp the LED pins.


1

Yes and No. Yes - you can plug them together. No - would you want to fly on an aircraft where the JST GH female terminal was mated to a Molex PicoBlade in the auto pilot?


1

It's a 5 pin stereo headphone jack. The connections are common, left, left speaker, right speaker and right. The speakers get disconnected when the headphone is plugged in.


1

Pin 1 is negative for guitar effects pedals. Pin 1 is positive for almost all other applications. Don't ask me how I discovered the difference, but my son now has one fewer working effects pedal. In both cases, pin 2, and pin 3 if used, are the other sign.


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