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1-2081205-1 — TE Connectivity AMP Connectors product photo
TE Connectivity AMP Connectors

TE KOAXXA 1-2081205-1 SMA Jack, 50 Ohm, 18 GHz

MPN1-2081205-1
Obsolete

TE Connectivity KOAXXA SMA jack, female socket, 50 Ohm, 18 GHz, for RG-178/196 cable, crimp shield termination, gold centre contact, threaded coupling.

$4.3300Ref. price · indicative, final on quote
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MOQ1 pcs
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Specifications

1-2081205-1 Technical Specifications
ParameterValue
SeriesKOAXXA
Mounting typeFree Hanging (In-Line)
Connector typeJack, Female Socket
Fastening typeThreaded
Voltage rating335 V
Frequency - max18 GHz
Cable groupRG-178, 196
Operating temperature-65°C ~ 85°C
Body materialZinc
Housing colorSilver
Dielectric materialPolymethylpentene (PMP)
Center contact materialCopper Alloy
PackageBulk
Impedance50 Ohms
Body finishNickel
Mating cycles500
Number of ports1
Shield terminationCrimp
Contact terminationSolder
Center contact platingGold

Product details

SMA jack for RG-178 and RG-196 cable assemblies

Rated to 18 GHz with a 335 V voltage rating, it covers the full L-band through Ku-band for signal routing in RF front-ends and lab equipment.

TE Connectivity lists the 1-2081205-1 as Obsolete. If a pin-compatible replacement is needed, the cable group (RG-178/196) and 50 Ohm impedance are the fixed constraints; verify the mating half interface (SMA threaded) and body finish before substituting.

What mates and what to check before ordering

This SMA jack mates with any standard SMA male plug (threaded coupling, per MIL-STD-348 interface). The nickel-plated zinc body provides RF shielding but is not rated for salt-fog or immersion — keep it inside an enclosure or weatherproof housing.

Frequently asked questions

What cable does 1-2081205-1 work with?

The 1-2081205-1 is designed for RG-178 and RG-196 coaxial cables. The centre contact is soldered; the shield is crimp-terminated. Use the correct crimp tool for the braid diameter of these cable types.

What is the frequency rating of 1-2081205-1?

The SMA jack is rated to 18 GHz maximum at 50 Ohms impedance. This covers applications from DC through Ku-band, including test equipment, telecom infrastructure, and RF instrumentation.