>> >From what I've seen (which is not a great deal :-)) self resonant 
>> frequencies can be a lot different for the same rated inductance (between 
>> different inductors). I'm in the process of looking for an SMD power choke, 
>> around 100uH, and the rated maximum SRFs seem to vary between 5 and 12 MHz, 
>> a bit lower than I expected. I suppose unless you take this kind of thing 
>> into account, you could up with performance quite a bit different from that 
>> expected in an ideal situation. 
Look at the current rating and DC resistance. Pick a current rating 
somewhat higher than your peak current.

In some applications a wire through a ferrite bead may be in series with 
the 100uH "choke". Possibly even with a capacitor in the middle to ground.

Is the choke to prevent ingress or egress of RF?
What is fundamental frequency?
What sort of waveforms?

RF filtering is a complex subject. It's application dependent and system 
dependent as to the significance of the SRF.



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