Hi Nordic Support,
Reaching out as due diligence on this.
We've been relying on the HK100515NJ-T for L3 (15 nH DCC inductor), the recommendation from PCA10040, in our design.
The part has reached EOL and we're considering replacements for it beyond the ones suggested by Digikey.
https://www.digikey.com/en/products/detail/taiyo-yuden/HK100515NJ-T/957881#product-details-substitutes
I would just like to know if there are any concerns worth considering when selecting this part beyond the 15nH 10% inductance and 50mA maximum current specified for L2 in series with it.
- Is there a concern with switching from ceramic core to air since this is a filtering inductor?
- Is there a limit to the DC resistance of the part you recommend staying below?
- Is there a reason you chose a part with 6x the current rating specified on the datasheet?
Are you considering other parts going forward for the PCA10040 series?
We're also considering https://www.digikey.com/en/products/detail/w%C3%BCrth-elektronik/7847804150/14640529 as an alt.
Thanks,
-Carl
