What This SMP Adapter Does That a Cable-Mount Connector Can't
The SMP-FSBA-1716 is a straight, in-line SMP adapter — a plug-to-plug gender changer with female sockets on both ends. It joins two SMP male plug cable ends or panel jacks without adding a cable stub, preserving the 50 Ohm transmission line through the joint. This adapter sits in the SMP-FSBA series, sharing the same 26.5 GHz ceiling and 100-cycle mating life with its siblings SMP-FSBA-145, SMP-FSBA-224, and SMP-FSBA-645.
Why the 26.5 GHz Ceiling and 50 Ohm Impedance Define the Fit
The 26.5 GHz maximum frequency covers the full K-band and well into the Ka-band window — enough for most microwave test setups, radar front-ends, and satellite IF chains. The 50 Ohm impedance matches the system standard; any deviation would reflect energy back toward the source. The straight body keeps the through-path short and symmetric, so the VSWR contribution from this adapter is dominated by the SMP interface tolerance, not by a right-angle bend.
Mating Reality: 100 Cycles, Snap-On Both Ends
The SMP interface is a blind-mate, push-on design — the snap-on detent provides retention without a threaded coupling nut. The 100-cycle rating is typical for SMP; the contact plating will wear after repeated connects, so this adapter is best suited for test fixtures, module-to-backplane interconnects, or semi-permanent installations where the adapter is mated once and left. Each end accepts a standard SMP male plug (male pin, outer shell with snap-on groove). The female socket centre contacts are beryllium copper with gold plating, matching the mating pin material to avoid galvanic corrosion.
No official second-source or cross-reference is listed beyond the SMP-FSBA series siblings.