The SMP-FS2A-645 is a straight SMP plug-to-plug adapter from the SMP-FS2A series, configured female-to-female. It is a same-series (SMP to SMP) conversion adapter, meaning it joins two SMP male plugs end-to-end. The body is machined from beryllium copper with a gold finish, and the centre contacts are gold-plated beryllium copper — a material set that holds stable contact resistance across temperature swings and repeated mates. The PTFE dielectric maintains consistent impedance through the adapter body. The snap-on fastening on both ends gives a positive lock without tools.
SMP-FS2A-645 SMP Adapter, 50 Ohm, 26.5 GHz, Straight
MPNSMP-FS2A-645
Active
SMP to SMP, SMP-FS2A-645, Straight, Plug to Plug, Female to Female, 50 Ohm, 26.5 GHz, Gold over Beryllium Copper, 100 Mating Cycles, Free Hanging.
$6.5400Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
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Worldwide DispatchDHL/FedEx — transit quoted per order
Independent supplier — new & surplus connector stock· Listing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Adapter type | Plug to Plug |
| Mounting | Free Hanging (In-Line) |
| Adapter series | SMP to SMP |
| Fastening type | Snap-On, Snap-On |
| Conversion type | Same Series |
| Frequency - max | 26.5 GHz |
| Operating temperature | -65°C~165°C |
| Body material | Beryllium Copper |
| Dielectric material | Polytetrafluoroethylene (PTFE) |
| Center contact material | Beryllium Copper |
| Style | Straight |
| Package | Bulk |
All specifications
| Parameter | Value |
|---|---|
| Impedance | 50Ohm |
| Body finish | Gold |
| Center gender | Female to Female |
| Mating cycles | 100 |
| Center contact plating | Gold |
| Convert to (Adapter end) | SMP Plug, Female Socket |
| Convert from (Adapter end) | SMP Plug, Female Socket |
Product details
Frequently asked questions
What is the impedance of SMP-FS2A-645?
The SMP-FS2A-645 is a 50 Ohm adapter, matching the standard impedance for most RF systems.
Is SMP-FS2A-645 a female to female adapter?
Yes, the SMP-FS2A-645 is a female-to-female adapter — it has a female socket on both ends, so it joins two SMP male plugs.