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| Come in through-hole components your time is up! |
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| John B:
--- Quote from: I wanted a rude username on December 28, 2021, 03:48:23 am --- --- Quote from: PixieDust on December 28, 2021, 02:50:24 am ---But what about all the other components like resistors, diodes etc? --- End quote --- My personal workflow is to only breadboard discrete subassemblies. --- End quote --- Yeah, I do the same. Only very limited breadboarding now before making a PCB. I've made tons of stuff via the veroboard method, and it's very laborious and time consuming to bend individual bits of wire to connect everything. Then when I blew up things they were very difficult to repair/desolder so I tossed them aside most of the time. I would also have to do a quasi-pcb design to plan out where all the parts went anyways, so I figured I might as well go straight to PCB. I even surface mount my old through hole components now. :-// Even your TO-220 packages will work fine SMD if you have enough room and don't need to dissipate much power. |
| PixieDust:
--- Quote from: eti on December 28, 2021, 03:32:56 am ---If a question is asked, the asker is unsure. Since the asker is unsure, let me ask you this - have you considered how many devices are used by the military, of which GIGANTIC numbers are deployed, which are so vastly expensive that they’re expected to last (and be repairable) for decades - think that they need to be serviced, and the components needs to be VERY firmly attached, but which also need to be serviced in locations that can’t always be lifted out like an operating theatre (IE, on the battleground) and how many are legacy industrial devices which continue in manufacture as nothing “better” is needed, and their systems simply depend on things (“if it ain’t broke, don’t ‘fix’ it”) I don’t see it. What I do see is many other forums having the same type of thread, over ten years ago, and yet ¯\_(ツ)_/¯ here we still are, and here through hole still is, still existing and doing very well thank you. Not every single electronic device is a cheap piece of eBay tat that can be thrown away after a year. Look at this: Defence contracts are funded by bottomless pockets, and if they say THT stays, nothing else matters - that’s the final word on it, and since lots of our technology descends from military research… well… that’s all there is to it. --- End quote --- Yep I've seen that video, but then you also read through threads on this forum and other forums which all point at the fact that ICs for example are pretty much all in SMT format now. Similarly, copper boards aren't cheap and SMT reduces the footprint quite drastically which is quite appealing in of itself. If you need to place SM components, why not switch over to SM for everything? EDIT: But I see what you're saying, higher power stuff won't be making to SMT any time soon. I guess the following from a random article sums it up: "Overall, surface mounting will almost always prove more efficient and cost-effective than through-hole mounting. It is used in more than 90 percent of PCBAs today. However, special mechanical, electrical, and thermal considerations will continue to require THM, keeping it relevant well into the future." Thanks "I wanted a rude username" & "John B" I've only built less than 10 boards so far, some through hole and some surface mount. The TH I tested in a breadboard, the surface mount I just created the board and threw it out when it didn't work as expected and just made a new one. I guess that's how it works these days with SM. |
| PKTKS:
I read the post in full... Some comments hold very true and should hold for quite some time.. Nevertheless blindly stating that THT is dead or any morbid thinking is a TOTAL BULLSHIT Reason being (some already said): - First and foremost there is no way to hold some parts unless using THT - High power devices no matter how cute they craft packaging rely on heat dissipation on the PCB itself.. needless to say how stupid this is.. so THT is required to mount large heat sinks devices attached firmly - More and more and more.. and more... I am stuck wasting my time looking for or developing myself breakout boards... just because there is no possible way to do real devel. in something that tiny or with ZERO pins or head connectors... so ..THT even to fit HEADERS... The more stupid answers probably should remember that unless making everything in a "virtual model computer base thing..." the whole SMT is meant to large production... not develop.. not even a single piece of tiny shit.. .. we just ccan not mount or handle that dust like parts... SMT is cheap affordable.. easy to automate... period. it is not meant otherwise.. The rest goes THT - put the header connectors.. the missing proper size. and real world mechanics... we can not have peek and place machines everywhere.. and it just makes no sense such stupid sized thing ... Paul |
| nctnico:
--- Quote from: PixieDust on December 27, 2021, 03:13:06 pm ---Sorry for posting in an old thread, I think the topic is still pertinent. I was wondering how you prototype on breadboards if TH is dead? How do you prototype with TH? --- End quote --- Who would use breadboards anyway? The major thing I recall from breadboard are flaky contacts. I use strip board which works just fine with SMT parts and chips can be mounted dead-bug style. Besides that most of the analog circuits I design start life in a simulator and more often than not I just create a PCB to test the circuit. |
| PixieDust:
--- Quote from: nctnico on December 28, 2021, 01:47:25 pm ---Besides that most of the analog circuits I design start life in a simulator and more often than not I just create a PCB to test the circuit. --- End quote --- Interesting, I was wondering how widespread SPICE use is. |
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