How to choose inductor library

[aashishsharma]

Hey I am designing some circuit in which i need to use inductors. I now realise (and it amazes me) that i have never used inductors before in any circuits(hardware).
I wanna use 3.3 nH,0.68 uH,1.2uH which inductors should i use??? I mean hardware? I just cant go the electronics shop and ask for such inductors like i do for other passives?? i heard they are real messy.
also what eagle library component should i go for.
thanks in advance

 

[reidintransit]

You can get the 3.3nH as a SMT part from many vendors online. The others will be larger, but can be found online as well. what is your application for the inductors? are they chokes or filter components or what?

 

[albbg]

If the inductor values you need came from calculation/simulation, probably in the real circuit you will have to adjust the value. So I can suggest you to buy a designer kit in which there are may inductors of different values. Have a look, for instance to:

https://it.mouser.com/Passive-Components/Inductors/Inductor-Kits-Accessories/_/N-5lx0n
https://www.digikey.com/product-search/en/kits/passive-kits-inductors-coils-chokes/2490938

 

[aashishsharma]

reidintransit:: i need them as filter components.

- - - Updated - - -

Albbg:: although i i have simulated my design (which is a filter) and tuned all the parameters but knowing that inductors can be difficult to manage i used the value specified in the datasheet of the IC i was using. I didnt touch those values.
also i think i would be using discrete component not the kit as ultimately i would be designing entire board and would require on board component

 

[albbg]

Designer kit are just collection of inductors of many values. Is a plastic box containing the inductors divided by value.
They are discrete components, just you'll have many values in order to help select the right one.

Is the same to buy, for instance, 10 inductors 1uH, 10 inductors 1.2uH, 10 inductors 1.5uH ...... , buy a box a put all the inductors inside.

 

[aashishsharma]

Thanks that helps

 

[selvam.p]

Hello friend, you try to online purchage or order to direct company..

 

[reidintransit]

inductor Q may be an issue you'll need to consider for filter circuits. Depends on how precise you need your filters to be. wikipedia has a simple explanation of inductor q factor: https://en.wikipedia.org/wiki/Inductor#Q_factor.