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Questions tagged [spacing]

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0
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2answers
39 views

Can problems arise from mixing 2.5mm pin pitch components with 2.54mm through-hole protoboards?

I am new to electronics and from what I understand, most protoboards seem to be standardized on a 2.54mm (0.1") pin pitch. I am also aware that there are through-hole components which are manufactured ...
7
votes
2answers
164 views

RS485 minimum node spacing - 3 x RS485 device on PCB

I would like to ask something about RS485 minimum node spacing which is described in (Page 5) TI Design guide I would like to create device which consists from 3 existing RS485 devices. My plan was ...
0
votes
1answer
36 views

How do I correctly position two connectors that must be spaced precisely while soldering?

I am having someone else assemble some very small boards I designed. There are two board-to-board Molex slimstack connectors that must be spaced precisely (3 mm center-to-center), in order to mate ...
1
vote
1answer
147 views

Terminal spacing for 120-240V

I have a board (Krida electronics, not mine) that uses 2-pole PCB screw terminal blocks with 0.2" (5mm) pin spacing for Line & Neutral input. The conductive parts inside the block are very close ...
0
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0answers
43 views

THT decopling capacitor spacing from the TQFP uC's power pin

simple question - how close can the uC's power pin (TQFP pad) and a ceramic cap's PTH pin can get so the PCB fabrication process or later exploitation would not go wrong ? Some ballpark figures for ...
2
votes
1answer
301 views

Parallel bus trace width and spacing

I have been working on designing a PCB for a Z80 computer that I plan to sell a few times for interested people. The Z80 will work at a maximum of 8 MHz and has parallel lines going to a system ...
1
vote
2answers
865 views

Will there be a problem if I stay almost in the border in trace spacing when dealing with line voltages?

The IPC-2221 standard shows that 1.25mm will be enough at less than 3050m at 250V (220V is the line voltage here in Turkey), even if the coating gets damaged. However, people generally recommend 5mm ...
2
votes
2answers
1k views

How to calculate typical signal trace clearance?

Knowing nothing more than most of the signal traces on a project are 7.5mil and it's a high end audio product, i.e. it's not a high frequency or any 'advanced' application, what would be a safe ...
7
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3answers
2k views

Prototyping a part with 2mm spacing on 0.1" matrix board?

I have an Airwave AWM682RX 5.8GHz video received and matching AWM683TX transmitter module. Oddly, one has pins spaced at 0.1", the other at 2mm. So, what's the best way to make a part with 2mm spaced ...
29
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3answers
5k views

Arduino pin spacing

How do you get around the annoying pin spacing on the Arduino? Where pin 7 and pin 8 are not standard spacing. Why is it set up like this?