I designed a DC-DC converter on TI's online WEBench Power Design (awesome tool), and the proposed design uses a C3216X5R1E476M160AC from TDK.

These are the specs listed in the BOM:
- 47uF
- Total derated 8.4uF
- 25V
- ESR 2.08mOhm
- 1206 package

I googled for equivalents, but nothing came up.
Any suggestions?

REASON: There's a 28 day lead time at JLCPCB for this part. I'm hoping to find an alternative that JLC has on hand.

 

Webench has an integrated Alternative tool, D'UH!

They suggest replacing it with 2 of 22uF GRM31CR61C226KE15L from Murata.

 

Interesting. I went to look at what Mouser had in 47µF, 25V, 1206 package and their tool came up with exactly the same TDK part, also delayed until 1/29/25.

 

I did the exact same thing.

My problem was trying to find the ESR rating in the datasheet; all I got was "low ESR".

And then that "derated value", I didn't see that mentionned anywhere.