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Amphenol 920-512P-51S — RF / Coaxial Connectors

Amphenol RF 920-512P-51S HD-EFI Plug, 50 Ohm, 6 GHz

MPN920-512P-51S
Active

Amphenol RF HD-EFI series, 920-512P-51S plug, male pin, 50 Ohm, 6 GHz, snap-on fastening, panel mount, gold body, for 1.13mm coaxial cable, kit includes connector, contact, ferrule, insulator.

$11.0100Ref. price · indicative, final on quote
Amphenol 920-512P-51S 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 supplier — new & surplus connector stock· Listing updated Jul 2026

Specifications

920-512P-51S key specifications
ParameterValue
SeriesHD-EFI
MountingPanel Mount
Connector typePlug, Male Pin
Fastening typeSnap-On
Frequency - max6 GHz
Cable group1.13mm Coaxial Cable
Operating temperature-55°C~125°C
Body materialBeryllium Copper
Housing colorGold
Dielectric materialPolytetrafluoroethylene (PTFE)
Center contact materialBeryllium Copper
PackageBulk

All specifications

920-512P-51S additional specifications
ParameterValue
Includes4 pcs - 1 Connector, 1 Contact, 1 Ferrule, 1 Insulator
Impedance50Ohm
Body finishGold
Mating cycles200
Number of ports1
Shield terminationCrimp
Contact terminationSolder
Center contact platingGold

Product details

HD-EFI Plug for 1.13mm Coax — 50 Ohm, 6 GHz

It delivers a 50 Ohm impedance path rated to 6 GHz, making it suitable for high-frequency signal interconnects in compact RF modules, antenna feeds, and test equipment where board space is tight. The snap-on fastening provides quick, secure mating without tools, and the gold-plated beryllium copper body and centre contact resist corrosion over repeated connect cycles.

Kit Contents and Cable Termination

This is a 4-piece kit: the connector body, a centre contact, a ferrule, and an insulator.

Mating Cycles and Field Service

The panel-mount configuration with snap-on retention suits applications where the connector stays fixed to a chassis and the cable is swapped during service — think test points, portable radio interfaces, or instrumentation panels.

Frequently asked questions

What is the impedance of the 920-512P-51S?

The 920-512P-51S is a 50 Ohm connector, the standard impedance for RF signal paths, ensuring matched transmission lines in most RF designs.

Is the 920-512P-51S compatible with 1.13mm cable?

Yes, the 920-512P-51S is designed for 1.13mm coaxial cable, as specified in the cable group. The kit includes the ferrule and insulator sized for that cable diameter.

What is the difference between HD-EFI and SMA connectors?

HD-EFI is a snap-on coupling interface, while SMA uses a threaded coupling. HD-EFI is typically smaller and faster to mate, but SMA offers higher torque retention and is more common in test and instrumentation. The 920-512P-51S is an HD-EFI plug and will not mate with an SMA receptacle.