The Hammond choke is more suited to the job and is actually a choke (that is, an inductor expected to withstand a significant DC or low-frequency bias), whereas the Kemet part is commonly (at least in English) called a "common mode choke" and is not actually a choke at all, but a 1:1 transformer which cannot support any net DC bias, really. Common mode chokes are expected to be placed in series with the forward and return conductors of a power supply, etc., so that the magnetic flux from any "normal mode" curren (that is, it goes out on one line and comes back on the other) is cancelled out, while common mode current (that is, having the same phase/magnitude on both lines) sees an inductance that is 4x larger than the single winding inductance, providing significant filtering.
For your specific application you want a choke that has a laminated silicon steel core with a "large" air gap (large being a relative term here). The Hammond part most likely fits this description, though it may not necessarily be ideal or the most cost-effective for the job.