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901-9871 — Amphenol product photo
Amphenol

Amphenol RF 901-9871 SMA Plug, 12.4 GHz, RG-55/142/223/400

MPN901-9871
Active

Amphenol RF SMA plug, male pin, 50 Ohm, 12.4 GHz, crimp shield termination, solder contact, gold body, for RG-55/142/223/400 cable, Bulk.

$12.1100Ref. price · indicative, final on quote
901-9871 datasheet
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MOQ1 pcs
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Specifications

901-9871 Technical Specifications
ParameterValue
Mounting typeFree Hanging (In-Line)
Connector typePlug, Male Pin
Fastening typeThreaded
Voltage rating500 V
Frequency - max12.4 GHz
Cable groupRG-55, 142, 223, 400
Operating temperature-65°C~165°C
Body materialBrass
Housing colorGold
Dielectric materialPolytetrafluoroethylene (PTFE)
Center contact materialBrass
PackageBulk
Includes3 pcs - 1 Connector, 1 Contact, 1 Ferrule
Impedance50Ohm
Body finishGold
Mating cycles500
Number of ports1
Shield terminationCrimp
Contact terminationSolder
Center contact platingGold

Product details

SMA Plug for RG-55/142/223/400 — 12.4 GHz Band Edge

The Amphenol RF 901-9871 is a 50 Ohm SMA plug, male pin, terminated for RG-55, 142, 223, and 400 cable groups. Rated to 12.4 GHz maximum frequency, this is an SMA that stops short of the full DC-18 GHz SMA band — sized for applications that need the SMA interface but don't require the top octave.

Cable Prep and Termination Sequence

The included ferrule is sized for the listed cable groups; using a different cable diameter will change the crimp compression and may shift the impedance or pull the centre conductor out of the pin's solder cup. Stick to RG-55, 142, 223, or 400 for a proper fit.

Mating and Fastening

The threaded fastening provides a vibration-resistant connection; the 500-cycle rating means the gold plating on the centre contact and body will hold up to repeated engagement in test fixtures or portable equipment without fretting corrosion. No special tooling beyond a crimp tool and a soldering iron is needed for field assembly.

Frequently asked questions

What cable works with 901-9871?

The 901-9871 is designed for RG-55, 142, 223, and 400 cable groups. The included ferrule and centre contact are sized for these coax types; using other cables will affect crimp quality and impedance.

Is 901-9871 compatible with RG-58 cable?

No — the cable group listed for this connector is RG-55, 142, 223, and 400. RG-58 has a different dielectric diameter and braid coverage; the ferrule and centre contact are not sized for it.

What is the mating connector for 901-9871?

Any standard SMA jack (female) with a threaded interface will mate with this plug. The threaded coupling nut provides vibration-resistant retention.