| General > General Technical Chat |
| Any bets on how long before the component shortage bubble explodes? |
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| harerod:
Benta, Cerebus - sorry for the confusion. A couple of minutes after posting, I decided that my post didn't live up to my standards, checked that nobody had answered yet and then deleted the post. My post was aimed at Benta's "psychological", which allows huge room for interpretation. Anyways, here is the original post that I deleted, verbatim: --- Quote from: Benta on September 25, 2021, 05:52:26 pm ---The "shortage" is to 90% psychological. ... --- End quote --- Maybe you are just the doctor that I have been looking for. In my line of work I have been hallucinating for nearly a year that 90%+ of the silicon in my BOMs are unobtanium or at least beating platinum in price per mass. Seriously, I know that I am using a lot of special components, but without those ADI/ST/TI single source devices we couldn't do the stuff we are doing. The other day I looked for opamps. It has been a long time since I settled for inferior components, just to get something into manufacturing. My old East German mentor keeps quoting GDR jokes. I haven't heard that many GDR joke since the wall came down. |
| Simon:
The problem is that we no longer live in a world populated by: 74 logic 741 opamps 78 regulators 16F84 micro controllers 1N4007 diodes 2N7000 mosfets IRF540 power mosfets Each subgroup of silicone devices is now full of a host of different devices, unless there is demand for all of them in volume how can we expect anyone to make them and keep dead stock on the shelf. I don't know what the minimum run for a silicone device is but yea..... ST seem to be very popular because they are cheap and from the little I have seen not great but the world runs on cheap. I chose the SAMC21 range which means I'm competing less and I get a chip that may cost a bit more but will do all I want. Currently work are struggling to get a microchip 3.3V regulator. It was clearly used by the idiot designer because it was cheap, the cheapest. Well guess why it is so cheap, it's only 1.6x1.6mm, it also seems to be the only regulator in that package. Had he chosen a regulator in a 3x3mm package you would be able to get some right now from several manufacturers making pin compatible devices. We need to move back to the days of more standardization in some parts, now your £100 board is held up by a voltage regulator of all things that costs pence..... |
| Just_another_Dave:
--- Quote from: Simon on September 26, 2021, 09:15:25 am ---The problem is that we no longer live in a world populated by: 74 logic 741 opamps 78 regulators 16F84 micro controllers 1N4007 diodes 2N7000 mosfets IRF540 power mosfets Each subgroup of silicone devices is now full of a host of different devices, unless there is demand for all of them in volume how can we expect anyone to make them and keep dead stock on the shelf. I don't know what the minimum run for a silicone device is but yea..... ST seem to be very popular because they are cheap and from the little I have seen not great but the world runs on cheap. I chose the SAMC21 range which means I'm competing less and I get a chip that may cost a bit more but will do all I want. Currently work are struggling to get a microchip 3.3V regulator. It was clearly used by the idiot designer because it was cheap, the cheapest. Well guess why it is so cheap, it's only 1.6x1.6mm, it also seems to be the only regulator in that package. Had he chosen a regulator in a 3x3mm package you would be able to get some right now from several manufacturers making pin compatible devices. We need to move back to the days of more standardization in some parts, now your £100 board is held up by a voltage regulator of all things that costs pence..... --- End quote --- I find the lack of standardization in electronics an important problem nowadays. Last year, we had to solder backwards a regulator in a prototype as a consequence of a wrongly specified reference voltage by our client (it needed to be provided to one of their boards from our pcb). The manufacturer of the regulator that they recommended had assigned the pins differently in each of the regulators of that family and the one that they told us and the required one had their footprint mirrored |
| Simon:
3 pin regulators tend to be the same unless they have an enable pin although I have not compared those. MOSFET's in common 3 pin packages seem to have common pinouts as do the SOIC8 ones which saved my ass recently. But microcontrollers - all different. any other more or less specific IC like a SM converter will be unique there is no stopping that, it's more a case of no one makes drop in replacements for others parts. It's not a case oy why make my new part interchangeable with an existing one that means people can use it instead? well it works both ways, making your part the same footprint and pinout as another means people can use it with no fear. In my last job we changed a fan for cheaper and better one on the basis that it was the same size and mount hole pattern so we could revert to the original fans if we wanted to. |
| DC1MC:
What about JEDEC standardistion efforts, are they still ongoing ? |
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