Without understanding the circuit, swapping active parts and inductors can cause unintended consequences. I swapped out an obsolete op-amp for a newer op-amp with similar spec and a faster slew rate on one design. The higher slew rate propagated more noise and under certain circumstances, malfunctioned. We had to rework entire lots and recall a shipment to a customer. (Luckily, we caught it before our exposure was large.)
That said, production can't always wait for engineers...
The specs are pretty much the same. The biggest difference is the Q factor, which the Abracon part comes closest to the original (original-45, substitute-40, although the Q factor is measured at different frequencies, which makes inductor comparison using datasheets difficult since Q can change with frequency.)
If this is a micro power supply circuit, it likely won't have a large, if any, effect.
If it's an RF circuit, you may see signal degradation on the side-bands of whatever frequency the circuit is tuned to.
Good Luck,Steve Golemme
From: Steve Gregory <[log in to unmask]>
To: [log in to unmask]
Sent: Monday, July 27, 2015 9:24 AM
Subject: Re: [TN] Obsolete Multilayer Ferrite Inductor replacement?
I meant Bourns, I don't know why I typed Murata...
On Mon, Jul 27, 2015 at 10:02 AM, Steve Gregory <[log in to unmask]> wrote:
> Hi All,
>
> We have a board here that uses a Multilayer Ferrite Chip Inductor from
> Murata that has gone obsolete. It's PN# CS321613-330. Murata decided to
> quit making it because according to the obsoleting notice they weren't
> selling many of these and not making any money:
> http://www.bourns.com/data/global/pdfs/IC1320_CS321613_POM.pdf
>
> So I've been looking for a replacement. I found a few out there, it needs
> to be a 1206, but I'm not an electrical guy, so I can't really make the
> call. Can any of you look at these and have an idea whether or not they
> would work? Below are the ones I found:
>
> AIML-1206-330
>
> IC1206A33R-10
>
> CL321611T-R33K-N
>
> Steve
>
>
>
>
>
>
>
>
>
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