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Visitor
Sep 19, 2026 3:24 PM UTC
Question

Values for S2-LP design at 433 and 868Mhz (Different build options)

Trying to update an existing design to use S2-LP , but I need table of values for 433 and 868Mhz operation. This needs to be one pcb layout that can be populated for either frequency. I have searched through the website but I can’t find a solution. I have found a eval board for FKI433V2 @ 433 Mhz, but no equivalent for 868Mhz. The other 868Mhz boards use a balun, so the layout would be quite different.

I’m sure many people have gone down this route in the past.

1 reply

ST Employee
Nov 5, 2026 1:10 PM UTC

Hi,

Actually the 868MHz SMD variant does exist : https://www.st.com/en/evaluation-tools/steval-fki868v2.html

Rgds

Ronan