The 5226990-3: Rated to 4 GHz, it covers the common RF bands from HF through UHF and into low microwave, making it a workhorse for signal paths that don't push into the multi-GHz range.
Mounting and Termination — What the Triple Option Means
This jack gives you three mounting paths in one part: panel mount (bulkhead with front-side nut), through-hole solder tails, and a right-angle body orientation. Shield termination is solder, not crimp, so you'll need a soldering iron, not a crimp tool — no special applicator beyond what any bench already has.
50 Ohm at 4 GHz — What the Bandwidth Means for Your Signal Chain
The 4 GHz upper frequency limit means this connector passes signals cleanly up through the 2.4 GHz ISM band, 3.5 GHz WiMAX bands, and into the lower 5 GHz region before roll-off becomes significant. If your application runs above 4 GHz — say 6 GHz or 10 GHz — you'd step up to a BNC rated for higher frequency (some reach 12 GHz) or move to an SMA or N-type. For the vast majority of lab instrumentation, broadcast, and industrial RF work below 4 GHz, this is the right interface.
How It Compares to 415420-1
The 415420-1 is another TE BNC jack in the same series, same Bulk package, and same Active lifecycle. The decision between them comes down to the mounting and termination: the 5226990-3 is panel mount with right-angle through-hole solder tails, while the 415420-1 is a straight through-hole solder cup variant. Both share the 50 Ohm impedance and BNC interface — the swap is about mechanical orientation, not electrical performance.