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Amphenol SMP-FS2A-145 — RF / Coaxial Connectors

Amphenol RF SMP-FS2A-145 SMP to SMP Adapter, 50 Ohm

MPNSMP-FS2A-145
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Amphenol RF SMP-FS2A-145, Straight SMP to SMP adapter, Plug to Plug, Female to Female, 50 Ohm, 26.5 GHz max, Free Hanging, Bulk.

$7.8300Ref. price · indicative, final on quote
Amphenol SMP-FS2A-145 datasheet (PDF)
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for stock & sourcing questions
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Jul 2026

Specifications

SMP-FS2A-145 key specifications
ParameterValue
Adapter typePlug to Plug
MountingFree Hanging (In-Line)
Adapter seriesSMP to SMP
Fastening typeSnap-On, Snap-On
Conversion typeSame Series
Frequency - max26.5 GHz
Operating temperature-65°C~165°C
Body materialBeryllium Copper
Dielectric materialPolytetrafluoroethylene (PTFE)
Center contact materialBeryllium Copper
StyleStraight
PackageBulk

All specifications

SMP-FS2A-145 additional specifications
ParameterValue
Impedance50Ohm
Body finishGold
Center genderFemale to Female
Mating cycles100
Center contact platingGold
Convert to (Adapter end)SMP Plug, Female Socket
Convert from (Adapter end)SMP Plug, Female Socket

Product details

SMP-FS2A-145: Straight In-Line SMP Barrel Adapter, 50 Ohm to 26.5 GHz

The Amphenol RF SMP-FS2A-145 is a straight, in-line SMP-to-SMP adapter — a barrel coupler with female-to-female center contacts, designed to join two SMP male plugs end-to-end. Both ends use a snap-on fastening, so the adapter locks into the mating plug with a positive detent — no threading or torque required. The free-hanging (in-line) mounting style makes it a straight pass-through for cable-to-cable or board-to-cable links in test setups, module interconnects, and compact RF assemblies where a rigid barrel saves space over a cable jumper.

RF Performance and Mechanical Limits

The 26.5 GHz upper frequency is the practical limit for this SMP interface.

Frequently asked questions

What is the difference between the SMP-FS2A-145 and an SMP male adapter?

The SMP-FS2A-145 is a female-to-female barrel adapter — it has two SMP female sockets on both ends, so it mates with two SMP male plugs. An SMP male adapter would have male pins on one or both ends, mating with female jacks. This part is for extending or joining two male-terminated cable assemblies in-line.

Is the SMP-FS2A-145 suitable for high-vibration environments?

The snap-on retention provides a positive detent lock, but the 100 mating cycle limit and the absence of a threaded coupling mean it is not rated for continuous high-vibration service like an SMA or TNC. It is better suited for bench interconnect, module docking, or low-vibration rack installations where the adapter is not subjected to constant mechanical shock.