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1-2081205-3 — TE Connectivity AMP Connectors product photo
TE Connectivity AMP Connectors

TE Connectivity 1-2081205-3 SMA Jack, 50 Ohm, 18 GHz

MPN1-2081205-3
Obsolete

TE Connectivity KOAXXA SMA jack, 1-2081205-3, 50 Ohm, 18 GHz, 335 V, gold-plated center contact, solder termination, threaded coupling, for 0.047" semi-rigid cable.

$4.7800Ref. price · indicative, final on quote
1-2081205-3 datasheet
StockContact for availability
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Specifications

1-2081205-3 Technical Specifications
ParameterValue
SeriesKOAXXA
Mounting typeFree Hanging (In-Line)
Connector typeJack, Female Socket
Fastening typeThreaded
Voltage rating335 V
Frequency - max18 GHz
Cable group0.047\" Semi Rigid
Operating temperature-65°C~85°C
Body materialZinc
Housing colorSilver
Dielectric materialPolymethylpentene (PMP)
Center contact materialCopper Alloy
PackageBulk
Impedance50Ohm
Body finishNickel
Mating cycles500
Number of ports1
Shield terminationCrimp
Contact terminationSolder
Center contact platingGold

Product details

The 1-2081205-3: It terminates with a solder center contact and a crimped shield, with a nickel-plated zinc body and a gold-plated copper alloy center contact. Rated to 18 GHz with a 335 V voltage ceiling, this jack is meant for precision RF signal paths where the cable is formed to a fixed route and the connector is not regularly disconnected.

The 50 Ohm impedance and 18 GHz frequency ceiling define the signal path capability — this jack will pass a clean signal through Ku-band without a significant impedance bump at the launch. The 500 mating cycles mean it is not a test-port connector for daily reconnection; it is a semi-permanent install where the cable is formed once and the connector stays mated.

Frequently asked questions

Is 1-2081205-3 obsolete?

Yes, TE Connectivity lists the 1-2081205-3 as Obsolete. No official replacement order code has been assigned.

What cable does 1-2081205-3 fit?

This SMA jack is designed for 0.047" semi-rigid cable. The center contact is solder-terminated and the shield is crimped, so the cable prep must match the dimensions of that cable group.

What is the mating connector for 1-2081205-3?

The 50 Ohm impedance and 18 GHz rating are maintained when mated with a compatible SMA plug.

Where can I buy 1-2081205-3?

This obsolete part is sourced to order against your RFQ.