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Bigger ferrite beads are better? (more attenuative)

eem2am

Aug 3, 2009
429
Joined
Aug 3, 2009
Messages
429
Hi
Both of these ferrite beads are 120R at 100MHz...

0402 ferrite bead:
https://uk.farnell.com/murata/blm15px121sn1d/ferrite-bead-0-06ohm-2a-0402/dp/2470351RL

0603 ferrite bead:
https://uk.farnell.com/murata/blm18...025ohm-3a-0603/dp/1515752RL?st=blm18sg121tn1d

Would you agree that the 0603 size bead is better?, ......because having a longer distance between its terminals, it means less radiated emissions will be able to "jump over it" (couple round it, instead of going through it and getting attenuated)
 

bertus

Moderator
Nov 8, 2019
3,263
Joined
Nov 8, 2019
Messages
3,263
Hello,

Compare the DC rating and the DC resistance.
What do you need?

Bertus
 
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