The SMP-FS2A-1674 is a straight SMP to SMP adapter from the SMP series, configured as a plug-to-plug in-line coupler with a female-to-female center contact.
Frequency and Impedance — The Signal Path Decision
The 40 GHz maximum frequency and 50 Ohm impedance define this adapter's application envelope. At 40 GHz, the SMP interface maintains a controlled impedance through the blind-mate interface, which means this adapter can sit in a signal chain carrying Ku-band, K-band, or Ka-band signals without introducing a standing-wave mismatch.
Mating Cycles and Build — What the 100-Cycle Rating Means
Rated for 100 mating cycles, this adapter is built for bench-top test, prototype bring-up, and periodic reconfiguration — not for a production harness that sees daily connect-disconnect. The snap-on, snap-on fastening type gives a positive tactile lock when mated, but the beryllium copper spring fingers in the SMP interface wear with each cycle. For a test-jig application where the adapter is mated a few dozen times over its life, the 100-cycle rating provides comfortable margin. For a high-throughput production test socket, look at a higher-cycle SMP variant.
Compatibility and Mating — What Connects to SMP-FS2A-1674
As an SMP to SMP adapter with female center contacts on both ends, the SMP-FS2A-1674 mates with any standard SMP plug (male pin) connector. The straight in-line body means the signal path runs straight through — no right-angle bend, no change in orientation. The free-hanging (in-line) mounting style lets it float in a cable run or sit between two bulkhead-mounted SMP jacks without additional hardware. The PTFE dielectric provides stable phase performance across the temperature range.