Standard Component Packages & sizes  - Page 1
Forum section: electronics / beginners

author: mkube396
author_rank: Regular Contributor
timestamp: February 16, 2021, 03:22:57 pm
content: I'm real green and new at this I just did my first summation a few days ago to have some small PCB's made for an adaptor to convert the singles from an Icom tuner to a Yaesu ft-891 with an Arduino Nano.. I had to have a friend fix it because I am having a hard time with the component library there is just way to much and would be nice if I can just sort by component package.its hard to just ask my friend to show me every thing as time is limited. like for instance I am laying things out and I need a transistor and its just a TO-92 and a standard 1/4w resistor it can take me like 30 mins to just fined some thing suitable and after that the drive is just not there to continue.Transistor - TO-92 /TO-220, EBC BEC ect,Resistor - 1/8w 1/4w 1/2w ectcopastor - lead spacing + diameterDip packages 8 pin 14 pin ect.I'm just in this for the hobby and the big thing that is holding me back is just finding the pattern. If any one has made a stranded library this would make this less frustrating that would be cool.

author: bob91343
author_rank: Super Contributor
timestamp: February 16, 2021, 06:24:14 pm
content: I find it difficult to understand what your situation is and what you are asking. Perhaps if you read your post before sending it you might correct your syntax and spelling errors as well as your overall sense. Take your time and avoid abbreviations. You aren't considered stupid if you spell things out to be clear.

author: Terry Bites
author_rank: Super Contributor
timestamp: February 16, 2021, 09:03:54 pm
content: Mostly components are standardised to fit on imperial or metric grids. There are hundreds if not thousands of standard packages. What you are referring to is the Footprint of a component. All PCB layout software includes libraries of standard parts. Plenty of free packages out there mate.Most component vendors have parametric search and a link to a data sheet with most of the important dimensions on it. There is no mystery to it.Where are you looking for your components? If its ebay or amazon or some such forget it. Go to a real vendor site:MouserNewarkDigikey etc etc etc.Then go back and find it cheaper!https://en.wikipedia.org/wiki/List_of_integrated_circuit_packaging_typesI sense you are hard of googling.

author: Vovk_Z
author_rank: Super Contributor
timestamp: February 16, 2021, 09:16:16 pm
content: Quote from: bob91343 on February 16, 2021, 06:24:14 pmDoes TS want to know popular types to make a list to buy?Or he wants to find dimensions of popular cases?

author: Siwastaja
author_rank: Super Contributor
timestamp: February 17, 2021, 02:31:14 pm
content: I think there is no simple pattern.What I mean, electronics is very complex and with a lot of detail you need to remember by heart.Like a lawyer, or a surgeon, needs to first study for 5-10 years intensively, then do the actual work for years, they need to Just Know the important details.Electronics is a bit like that, there are tens of thousands of components of hundreds of different types, in hundreds of different packages and sizes, some custom just for that particular component, with dozens of different pinouts.The bright side is, unlike a surgeon, you can learn piece by piece by trial and error. Start somewhere.My suggestion is to avoid the first trap of trying to force a pattern when there isn't one. For example, if you need a resistor, don't start by thinking what common resistors are available or how they are named; instead just open the Digikey's or Mouser's parametric search, look for just resistors, pick the resistance and power dissipation numbers based on your actual calculations, then sort by price and look for parts that are low-cost and good availability numbers ("157000 in stock" wins the "157 in stock"). Open up the datasheet and look at the footprint drawings, dimensions, specifications etc. If you feel it's still suitable, design around it and buy 'em! This way, you don't need to understand all the resistor tech speak like it being an E24 series part or in a 0603 package or maybe a 0603 metric package (which is a different thing) or whatnot.Following this process also ensures you keep up to modern-day parts.Excessive tech talk can be overwhelming, and often of little value. What is the benefit of knowing "TSSOP" is an abbreviation of "Thin shrink small-outline package"? Nothing - this is only harmful information. The key is that "TSSOP" is just a name, a tag which is googlable for a drawing.