Questions tagged [footprint]
Footprints are the CAD representations of the pads (and other physical/mechanical features) of a board-level component.
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What are the common package names for pin spacing in multiples near 50-mils?
I'm looking for component package names that are known to provide conductors on (nearly) 50-mil spacing so it fits well on a 50x50mil SMT protyping board.
I know SOIC are 50-mil, and even SOT-223 is ...
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Thermal relief for a chip without metal plate on the bottom
I have a chip in which I have selected this footprint: Package_SO: SOIC-8_3.9X4.9mm_P1.27mm.
This is what it looks like:
Because this chip gets pretty hot, I ...
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Footprint for potentiometer with support pins
I am trying to add this:
potentiometer to my design. As you can see, it also has two pins in order to support it structurally. This is the datasheet if anyone is interested:
https://www.tme.eu/...
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Create footprints on flexible PCB
I'm completely new to PCB design but I'm trying to create my own flexible PCB. Now I want to recreate the board below but with different contact pads on the bottom (because they are really fragile). ...
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Footprint for 12.3x12.3mm SMD inductor
I want to incorporate this inductor:
https://www.lcsc.com/product-detail/Inductors-SMD_SHOU-HAN-CYH127-150UH_C2929506.html
in my project.
Datasheet it here: https://datasheet.lcsc.com/lcsc/...
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Clearance error on pin header solder pads in Eagle
I am getting a clearance error on the Sullins connector PPTC191LFBN-RC. I got the EDA models from Octopart. On including this model in my design I am getting a solder pad clearance error on both the ...
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Making a DE-15 (HD-15) connector footprint from datasheet
I am trying to make a PCB footprint of a edge-mounted DE-15 D-sub connector (a.k.a. HD-15, DE15, HD15), however the datasheet does not seem to provide enough metrics to make it unambiguous.
Here is ...
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Kicad 7. No footprints after upgrade from Kicad 5
I used to have Kicad 5, then in the middle of the project, I decided to upgrade to Kicad 7.
When I run the footprint assignment tool, I got a message that footprint libraries are missing (...
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Meaning of "DMC" abbreviation in LED footprint
I'm planning on using the SU CULDP1.VC UVC LED for a design, and I'm reading through the datasheet. In the package drawing of the component (p 12 of the datasheet, which can be found here: https://...
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Altium: How to generate SMD switch footprint using Wizard?
Here is excerpt from datasheet for the A6S-4101-H.
I need two rows of pads. The distance between (center of) pads in a row is 2.54mm. The distance between the (center of pads) two rows is 8.9mm. Each ...
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Reflow soldering with decreased footprint size fully within pad
So the original footprint is first, followed is the edited footprint to allow for inner pads to be accessed.
As you will notice the extended pad footprint is smaller than the pad. Will this cause ...
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Kicad DRC Error "Footprint has no courtyard defined"
At the final stage of the PCB design, I performed an ERC check.
I got the message:
Footprint has no courtyard defined
@(156,718mm, 78,296mm): Footprint RV1 on Front
...
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Are these circles in the exposed pad of a VQFN footprint meant to be non-metallized, and if so, for what purpose?
I am creating a footprint for a TI TXS0108ERGYR level shifter and encountered these circles drawn in the exposed pad for its land pattern:
Are these meant to be non-metallized and if so, for what ...
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KiCad footprint for 5 mm three pin potentiometer [closed]
I want to use a standard three pin through-hole potentiometer in my design.
The pins have a distance of 5 mm between them.
KiCad has literally hundreds of footprints for through-hole potentiometers, ...
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Tactile button switch footprint in KiCAD
I want to use this tactile switch in my PCB design:
https://datasheet.lcsc.com/lcsc/2002271735_XKB-Connectivity-TS-1101-C-W_C318938.pdf
As you can see in the document, the distance between the edges ...
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KiCad - SOD-323 footprint
I want to use this component in my design:
https://datasheet.lcsc.com/lcsc/2201121330_JSMSEMI-1N5819WS-S4_C2927280.pdf
It says that the footprint is SOD-323.
I ...
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Footprint assignments in KiCad
Does anyone know what footprint assignment for the potentiometer WH148 style in KiCad? There were a lot of footprints but I don't know which one is the same as the WH148 style.
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Footprint for Electrolytic Capacitor
I plan on using this capacitor on my project:
https://datasheet.lcsc.com/lcsc/2209011730_KNSCHA-RVT330UF50V167RV085_C5155333.pdf
This is an electrolytic capacitor (this means it has polarity.).
The ...
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Is there any provided footprint for the AS5F18G04SND-10LIN from Alliance Memory?
Documentation link
All I could find in the documentation was a really low resolution (and impossible to read) package outline. I also looked elsewhere for a footprint for that package and the IC ...
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Package and footprint - Are they correct
In this device, on page 208, the page has the Package outline drawing. 8-pin package. SOIC.
"8S2, 8-lead, 0.208” Body, Plastic Small
Outline Package (EIAJ)"
I want the footprint of this ...
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Manufacturer part search in Altium 17
Do you know if the "manufacturer part search" is available in Altium 17?
I have tried it in Altium 23 but I am not able to find it in Altium 17.
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PNP transistor symbols, pins and footprints
I am currently building a soft latch circuit in a CAD editor.
I want to use a PNP transistor, and have 2 choices for this component.
However, I am confused when comparing the datasheets of the ...
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Thermal issues: surface mounted on 1" x 1" FR4 board
A number of parts are rated at certain thermal impedance with a note, something along the lines of
surface mounted on 1" x 1" FR4 board
like in this datasheet for instance - MOSFET Vishay ...
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Altium: What is the purpose of layers 1, 13 and 15 in this PCB footprint?
What is the purpose of data contained in the mechanical layers of this PCB footprint.
Here is a PCB foot print I got from snapeda for the part OF-SMD2835G.
The green line appears to be outline for ...
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LED PCB footprint with non-symmetrical pads
This question is related to the LED component HL-AM-2835H489W-S1-08HL-HR3 from HONGLITRONIC. The datasheet for this part can be found here.
This component has a SMD2835 SMD package that I have not ...
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LED PCB footprint with non-square pads
The question is related to the datasheet for LED part number MHT151WDT. It is manufactured by Lianyungang Meihua Electronics Technology Co. Ltd. The datasheet can be found here.
The pg. 2 in this ...
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Altium footprint library
I created a new PCB library in Altium. I want to add a 3D model of the component, but I don't want to download the 3D model step file of a component on my computer. Can I directly import it to my PCB ...
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What means the jumper field in a footprint pad properties in Altium?
I have copied a footprint to a new .PcbLib file. After doing that the field called "jumper" in the properties window for each pad has been set to 0 (for two pads) and to 1 (in six pads). I ...
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Footprint of current sense resistor for kelvin connection
I need a current sense resistor for my application and I want to add Kelvin connections to it. I found this in the datasheet of a 4 terminal resistor but the footprint doesn't contain "sensing ...
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Assigning footprint to symbols in Altium Designer
I'm trying to assign footprint to symbols in Altium, I imported and modified the footprint to my PCB Library and also deleted another footprint so this is the list of footprints I currently have
but ...
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Altium: PCB Layers configuration when importing footprints
This is my first time using Altium and I'm still a beginner with PCB design. I want to import the symbols and footprints of the components from different sources (Websites, existing projects...) but I'...
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Does it make sense to add a few footprints into the schematic component in Altium?
I'm new to Altium. I have a question about libraries in Altium. If I draw a passive component such as a capacitor in the schematic library of Altium, after all packages of capacitors like 0402, 0603, ...
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Is it possible to assign footprints to components in LTspice?
In Multisim, I can draw a circuit, assign footprints to the circuit components and export the file to Protel-format such that I can design component placement in another program (VeeCAD).
The ...
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Radius of footprint vs altitude: math equation
I want to compare footprint size/beam size of satellite and plot “radius of footprint vs. altitude” variation. ( my main reference( see above) is 3GPPTR38_821/Solutions for {NR} to support non-...
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Relative path for KiCad custom symbols
I'm trying to make my KiCad projects portable & that requires my custom symbols & footprint I used for these different projects be portable as well. So I'm putting my "my_symbols" &...
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Stripping down this SVG diagram to be a footprint in KiCad
This is a continuation of this question:
Trouble finding/creating footprint for a specific switch (SP10T) in KiCAD
I have an SVG diagram of a SP10T switch, from which I would like to create a ...
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Using 1206 capacitor on 0805 footprint for Ethernet testing
I have a PCB with an RJ45 connector, which naturally requires a 1000 pF/2 kV capacitor connecting chassis GND to system GND.
Unfortunately the PCB was designed with an 0805 package, and I can't find ...
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Trouble finding/creating footprint for a specific switch (SP10T) in KiCAD
Well, I feel that time has passed me by (guess I'm old), as the local makerspace I've been visiting don't even do chemical etching anymore & the process of manufacturing a PCB from schematic to ...
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Altium footprint cutout slot to pad clearance rule
The LS05-13B12R3 requires two slots be placed on the pads of the two primaries of the transformer. The SnapEDA footprint model uses rectangular polygon defined as cutouts for this purpose in the ...
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What are best practices for QFN footprint design for manufacturability?
I've never previously designed a board for mass production (as opposed to boards I hand-solder myself with a soldering iron and rare application of a hot-air station), but it's looking like I'm going ...
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Extra pads on CAD footprint
A Phoenix 2 pin connector I am using, shown here:
https://app.ultralibrarian.com/details/eb577c4a-1e49-11e9-ab3a-0a3560a4cccc/Phoenix-Contact/1725656
has 2 pins and 2 mounting legs. The std view ...
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What determines the choice of maximum material condition (MMC) versus least material condition (LMC) when designing a BGA footprint?
I am evaluating the IPC-compliant footprint wizard in Altium Designer. One of the steps is to determine the pad size relative to the nominal ball diameter:
Related to this topic, an answer provides a ...
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The DisplayPort PCB footprint I'm looking for doesn't exist in KiCad
Sometimes when I search KiCad for a PCB footprint, I get no results. For example, "DisplayPort" (part number 472720001).
Edit: I'm happy to make the footprint myself, but I'd rather download ...
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What is the purpose of these unusual IC footprint features?
I am working on creating a footprint for the MAX25254 buck regulator and am puzzled by several inconsistencies which are proving annoying:
Inconsistent pad sizes
Seemingly unnecessarily complicated ...
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Perfect annular ring size for given lead size when datasheet does not exist?
I have a round component lead.
The component lead is 6.2 mm ±0.1 mm.
I need a hole for this lead that is big enough. The capability of the PCB manufacturer is +/-0.2 mm for holes. The hole for the ...
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How do I find a connector matching an existing footprint?
This is a bit different from the usual question about connector footprints here because instead of asking about how to create a footprint for a given part, my question is how to find a connector ...
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EAGLE Footprint with only top pad and a hole through it
I need top create a footprint with only one top layer pad (no bottom pad).
To create a through hole pad and remove the solder mask on the bottom side will not work, because the hole needs to be none-...
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Assistance routing a footprint
I'm attempting to learn PCB design. Mostly super basic stuff to replace the rats nest of wires between my Arduino modules.
Anyway I'm using the following component in a project and can't quite figure ...
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Cadence Allegro/PCB Editor: Change mechanical pin to electrical pin
Inside a package/footprint I accidentally deleted the texts of the pin numbers. Thus the electrical pins became mechanical pins. Can I somehow reverse this process and change the mechanical pins back ...
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Polygon covering footprints [closed]
I am new at designing, when I pouring copper in the polygon, it covers the footpring:
BTW, there is any option to edit footprint from the web?
At the picture above there isnt "Top overlay" ...
