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Amphenol 031-70339 — RF / Coaxial Connectors

Amphenol 031-70339 Mini BNC Plug, 75 Ohm, 1 GHz, RG179

MPN031-70339
Active

Amphenol mini BNC plug, 75 Ohm, 1 GHz, RG-179/187 cable group, bayonet lock, crimp shield, solder contact, 500 mating cycles, bulk kit includes connector + end cap + ferrule.

$14.4900Ref. price · indicative, final on quote
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

031-70339 key specifications
ParameterValue
MountingFree Hanging (In-Line), Right Angle
Connector typePlug, Male Pin
Fastening typeBayonet Lock
Frequency - max1 GHz
Cable groupRG-179, 179A, 179B, 187, 187A, Belden 9221, M17/94-RG179
Body materialPhosphor Bronze
Housing colorSilver
Dielectric materialPolytetrafluoroethylene (PTFE)
Center contact materialBrass
PackageBulk
Includes3 pcs - 1 Connector, 1 End Cap, 1 Ferrule
Impedance75Ohm

All specifications

031-70339 additional specifications
ParameterValue
Body finishNickel
Mating cycles500
Insertion loss0.1dB
Number of ports1
Shield terminationCrimp
Contact terminationSolder
Center contact platingGold

Product details

Cable Fit and Kit Contents

The 031-70339: This plug is built for RG-179, 179A, 179B, 187, 187A, and Belden 9221 — the common 75 Ohm miniature coax types with a solid or stranded centre conductor around 0.3 mm diameter. Shield termination is crimp; the centre contact is soldered.

Phosphor bronze body with nickel finish, brass centre contact plated gold.

Frequently asked questions

Is Amphenol 031-70339 50 or 75 ohm?

75 Ohm. That impedance is set by the PTFE dielectric and the centre-contact geometry, and it matches RG-179 class cables. A 50 Ohm BNC on this cable would create a mismatch; the 031-70339 is the correct 75 Ohm plug for that cable group.

What cable is compatible with Amphenol 031-70339?

RG-179, 179A, 179B, 187, 187A, and Belden 9221. The kit includes the crimp ferrule sized for these cables. Shield is crimped, centre conductor soldered.

Does Amphenol 031-70339 have a datasheet available?

The manufacturer's datasheet covers the 031-70 series mini BNC connectors, including this plug. It details the cable stripping dimensions, crimp tooling, and electrical performance up to 1 GHz. Request a copy with your RFQ.