# Finding right component package in Multisim

I have started using Multisim.

I designed a 5V regulator and it works in simulation, now I want to export it to UtilBoard but I can not find the right package or footprint for my component as there are thousands of them in the database.

What I am looking for is common 1/4 Watt resistors, a pair of 100µF and 10µF electrolytic caps and one 0.1µF ceramic capacitor.

I only succeeded finding the right package for K317 regulator which happens to be TO220 package.

What is the best way and best place to look to find a package for the component. For example, how can I find the package type of a normal 1/4Watt resistor?

I don't know about Multisim, but in gEDA the footprints for these kind of components follow a pattern:

XXXnnn[n]{P}


Where XXX is the type of component, and nnn[n] is the size in mils, and {P} is polarized.

For example:

• ACY400 is a generic 400-mil passive component (such as resistor).
• ALF300 is a 300-mil diode.
• RCY100P is a polarized electrolytic capacitor with 100-mil lead spacing.

(Axx = Axial, Rxx = Radial)

If there is a search facility I would start by narrowing the list down to show just those of the size you are looking for - such as entering "400" for a resistor - then browsing through. You'll soon get to know what is what - of the thousands of footprints you'll regularly use a mere handful.

• Ok I found some clues in multisim. For the resistor there are lots of options like ackage type: "RES1300-700X250 Package manufacturer: IPC-2221A/2222 Pin Count: 2" So is RES1300 reffering to package type? Is it standard or you think it is only used by Multisim? Thanks. – Sean87 Jul 31 '11 at 16:46
• That sounds like a 1300 mil resistor (quite large - 100 mil is 0.1") – Majenko Jul 31 '11 at 16:58
• aaah I was thinking it is millimeters :P hate imperial units...reminds me of imperialism! Thanks. – Sean87 Jul 31 '11 at 21:11
• Alo found out IPC is the PCB design standard. – Sean87 Jul 31 '11 at 21:12
• This is why I love Altium. All the components in the libraries have both a compact identifier (as above) and a human readable description, and you can search both to find a component. – Connor Wolf Aug 1 '11 at 9:11

A little late but for someone hows still looking, like i was....

• Double click on the resistor.
• Go to Value Tab.
• Layout Settings.
• Edit Package.
• List item
• Select package from data Base.
• Look for the right package u want.
• Select and Oks.

For the resistor look for Generic RES0.25.

• Indeed... it's very late! – Sean87 Mar 3 '18 at 14:15

Here you can fin the answer in details

http://digital.ni.com/public.nsf/allkb/E81C051F276C5BE0862579E2006975D5

• Link only answers are strongly discouraged. – Matt Young Mar 6 '14 at 13:05