Electronics > Projects, Designs, and Technical Stuff
why did mfrs stop placing parts vertically on PCBs??
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ArthurDent:
Here is a photo of a brand new RD6006 power supply module. You can see that there are a lot of flat (surface mount) components but there are also parts mounted vertically on the board where it made sense. The inductors, filter caps, and one big blue resistor are sticking up to save space. If these were laying flat against the board it would have to be much larger as others have pointed out.
HwAoRrDk:
Speaking of caps, that seems to be one area where the trend has reversed. Axial electrolytic caps used to be fairly common, but you hardly ever see them used nowadays.
coppice:

--- Quote from: HwAoRrDk on February 08, 2020, 04:09:05 pm ---Speaking of caps, that seems to be one area where the trend has reversed. Axial electrolytic caps used to be fairly common, but you hardly ever see them used nowadays.

--- End quote ---
Axial electrolytics have only ever been common for smaller parts. I think you are looking at SMD designs, where all the small axial electrolytics have migrated to SMD packages, and the through hole electrolytics are large radial ones. If you look at designs which are still fully through hole I suspect you'll find as many axial electrolytics as in previous decades.
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