EEVblog Electronics Community Forum

Electronics => Beginners => Topic started by: Domokelly on May 18, 2020, 05:15:44 pm

Title: Need Help Identifying an Inductor....
Post by: Domokelly on May 18, 2020, 05:15:44 pm

Hi EEV Blog brains-trust!

I’m hoping someone might be able to help me identify an SMD inductor from a PCB in the attached photo. It seems to have blown out the sealant on the exterior edges so I’m guessing it’s cooked- it’s the only component on the PCB in question with any visible damage so I figure it’s a good place to start.

I looked around the internet for help and found this page:

https://how-to.fandom.com/wiki/How_to_identify_inductor_markings

And it says that the number 333 could mean nano or micro Henry depending on the manufacturer. So I was wondering if anyone might know who the manufacturer is- and what the value could be?

For reference the component measures approx 6.2mm square and is from an instrument cluster in an Audi A3 made by VDO / Siemens.

Many thanks in advance,

Cheers Dom.

Title: Re: Need Help Identifying an Inductor....
Post by: bob91343 on May 18, 2020, 05:25:09 pm

That small, it's unlikely microhenry, more likely nanohenry.

Title: Re: Need Help Identifying an Inductor....
Post by: madires on May 18, 2020, 05:46:52 pm

EPCOS
33 * 10^3nH = 33µH

Title: Re: Need Help Identifying an Inductor....
Post by: Domokelly on May 19, 2020, 01:50:31 am

Hi madires,

You are the man!

I found them on RS and have just ordered a few:

https://au.rs-online.com/web/p/wire-wound-surface-mount-inductors/4958161/

Thanks so much- you're a life saver!  :-+ :-+

Cheers, Dom.