The 925-197J-51PT: SMPM is the miniature blind-mate interface for dense RF boards where the full SMP's 40 GHz reach is overkill but the 26.5 GHz ceiling here still covers Ku-band and most microwave links.
The 925-144J-51P is the same SMPM jack, same 50 Ohm impedance and gold body, but packaged in Bulk rather than Tape & Reel or Cut Tape. The functional specs — 26.5 GHz frequency ceiling, 100 mating cycles, snap-on fastening — are identical. The choice is a packaging preference: the 925-197J-51PT suits automated pick-and-place lines; the 925-144J-51P works for hand-assembly or low-volume builds where reel feed is unnecessary.
What the 26.5 GHz and 100-Cycle Ratings Mean for Your RF Path
The 26.5 GHz maximum frequency means this jack supports signals up through the Ku-band and into the lower K-band, covering most satellite communications, point-to-point microwave, and test equipment applications.