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nomenclature question
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johnnymack 1 year ago
Would someone be willing to tell me how to find thru hole parts vs smt parts in the library? What are the naming conventions between the two. I'm trying to find schematic designs for thru hole lm358
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andyfierman 1 year ago
Easiest way: 1. Open the EasyEDA Std Editor window; 2. SHIFT+F; 3. Search for lm358; 4. Click on the Footprint header to sort name ascending and get: ![image.png](//image.easyeda.com/pullimage/kzuSBKHnpJ70Dsc2Efb2FiKDhTbURkjcHrGMEQA7.png) and check footprint in the right hand preview. More complex but flexible way: 1. find a suitable 2 part sub-part symbol;  2. Assign a suitable footprint to it using the Footprint Manager. For more please see (1) and (2.3) in (2) in: [https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a](https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a)<br> <br>
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johnnymack 1 year ago
Thank you. I think I figured out that there is DIP and SOP for IC. I think it's axial or  '0603' for resistor and caps. Still learning
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andyfierman 1 year ago
0603 is just one of several different sizes of surface mount packages mostly used for 2 terminal devices. SOP is one of many different types of surface mount packages used for transistors and ICs. Have a look through Analog.com or TI.com and Infineon.com product datasheets to see the wide range of SMD packages there are.
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Megascott 1 year ago
The preview function of the Library window does a good job of showing TH(Through Hole) versus Surface Mounted parts. Notice, if the part footprint is labeled correctly, it will indicate not only the package type, but also the size. be aware that user created parts may not, and in most cases will not conform to the EasyEDA naming convention as shown in the Documentation. [https://easyeda.com/forum/topic/EasyEDA-Footprint-Naming-Rule-Reference-9b470b52aeca46228b446f1fc0e323f0](https://easyeda.com/forum/topic/EasyEDA-Footprint-Naming-Rule-Reference-9b470b52aeca46228b446f1fc0e323f0) It pays to double check every package used in your design for errors in the footprint and on the pin assignments, even if it comes from LCSC, The standard parts in the library in EasyEDA and especially the user created parts can have errors. For example, the standard EasyEDA library shows 1N4007W diodes, which create a hole that just barely accepts the leads of the Diode. I like to edit the holes to give me some wiggle room when assembling the board. Also, it is of use to print out a copy of your board in 1:1 and matchup the footprints with your actual parts, TH or SMD. This has saved me money.
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andyfierman 1 year ago
To clarify: "Have a look through Analog.com or TI.com, **onsemi.com** and Infineon.com product datasheets to see the wide range of SMD **semiconductor** packages there are." I haven't found a good single reference for passive component smd packages but for active devices see also: [https://en\.m\.wikipedia\.org/wiki/List\_of\_integrated\_circuit\_packaging\_types](https://en.m.wikipedia.org/wiki/List_of_integrated_circuit_packaging_types)<br> <br> Companies like Murata, TDK, Panasonic and Vishay are a good, if scattered, source of information about packages for passive devices.
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