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901-9805-HP — Amphenol product photo
Amphenol

901-9805-HP Amphenol RF SMA Plug, 50 Ohm, 18 GHz, RG-405

MPN901-9805-HP
Active

Amphenol RF SMA plug, male pin, 50 Ohm, 18 GHz, for RG-405 (.085" semi-rigid) cable, solder termination, gold-plated beryllium copper center contact, stainless steel body, 500 mating cycles, bulk.

$13.7500Ref. price · indicative, final on quote
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Specifications

901-9805-HP Technical Specifications
ParameterValue
Mounting typeFree Hanging (In-Line)
Connector typePlug, Male Pin
Fastening typeThreaded
Frequency - max18 GHz
Cable groupRG-405 (.085\", .086\" Semi Rigid)
Operating temperature-65°C~165°C
Body materialStainless Steel
Housing colorGold, Silver
Dielectric materialPolytetrafluoroethylene (PTFE)
Center contact materialBeryllium Copper
PackageBulk
Impedance50Ohm
Body finishGold; Passivated
Mating cycles500
Number of ports1
Shield terminationSolder
Contact terminationSolder
Center contact platingGold

Product details

SMA Plug for RG-405 Semi-Rigid Cable

The 901-9805-HP: It delivers a 50 Ohm impedance path rated to 18 GHz, covering applications through Ku-band — radar, satellite links, and microwave test assemblies.

This plug accepts RG-405 (.085" semi-rigid) cable only — the cable group is specified at the part level, not a range. Both the shield and center contact terminate by solder, so the build requires a controlled soldering process to avoid wicking into the PTFE dielectric. The shield termination is soldered, not crimped, which gives a lower and more consistent DC path but demands a skilled hand on the assembly line.

Materials and Environment

The body is stainless steel with a passivated finish, and the coupling nut carries gold plating — a combination that resists corrosion in lab, outdoor, or marine-adjacent environments without adding galvanic risk.

Frequently asked questions

What is the impedance of the 901-9805-HP connector?

The 901-9805-HP is a 50 Ohm SMA plug, rated to 18 GHz. The 50 Ohm impedance is maintained through the PTFE dielectric and the geometry matched to RG-405 cable.

Is 901-9805-HP compatible with RG-405 cable?

Yes, the 901-9805-HP is designed for RG-405 (.085".086" semi-rigid) cable. Both shield and center contact are solder-terminated; no other cable types are specified.