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31-5329 — Amphenol product photo
Amphenol

Amphenol RF 31-5329 BNC Jack, Female Socket, 50 Ohm, 4 GHz

MPN31-5329
Active

Amphenol RF BNC jack, female socket, 50 Ohm, 4 GHz, 0.2 dB insertion loss, 500 mating cycles, through-hole, solder termination, gold-plated beryllium copper center contact.

$10.6600Ref. price · indicative, final on quote
31-5329 datasheet
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MOQ1 pcs
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Specifications

31-5329 Technical Specifications
ParameterValue
Mounting typeThrough Hole
Connector typeJack, Female Socket
Fastening typeBayonet Lock
Voltage rating500 V
Frequency - max4 GHz
Operating temperature-65°C~165°C
Body materialZinc Die Cast
Housing colorSilver
Dielectric materialPolytetrafluoroethylene (PTFE)
Center contact materialBeryllium Copper
PackageBulk
Impedance50Ohm
Body finishTin
Mating cycles500
Insertion loss0.2dB
Number of ports1
Shield terminationSolder
Contact terminationSolder
Center contact platingGold

Product details

The 31-5329: This is a single-port, bayonet-lock connector — the standard BNC quick-connect interface you find on oscilloscopes, signal generators, RF test equipment, and telecom gear where a reliable 50 Ohm signal path is needed.

The 4 GHz max frequency means this jack can pass signals up into the low microwave range, covering Wi-Fi bands, cellular, and instrumentation signals without significant roll-off. The 0.2 dB insertion loss at rated frequency is typical for a BNC interface at this price point — it's low enough that you won't see a meaningful signal drop in a short cable run or a single board-to-board interconnect.

Construction and Termination Details

The shield termination is solder, same as the center contact, so you'll need to solder both the signal pin and the ground shield to the PCB. The body is zinc die cast with a tin finish, which is a standard industrial finish — it's not as corrosion-resistant as nickel, but it's fine for indoor equipment.

Frequently asked questions

What is the impedance of Amphenol 31-5329?

The 31-5329 has a 50 Ohm impedance, which is the standard for RF signal paths and matches common coaxial cables like RG-58.

Is 31-5329 compatible with RG-58 cable?

The 31-5329 is a PCB-mount jack, not a cable-mount connector, so it doesn't directly terminate to RG-58 cable. It mates with a BNC plug that is terminated to RG-58 or any 50 Ohm BNC cable assembly.

What is the difference between 31-5329 and 31-5640-1010?

The 31-5329 is a through-hole PCB-mount BNC jack, while the 31-5640-1010 is a bulkhead-mount version with a board lock feature. Both are 50 Ohm, but the 31-5329 is rated to 4 GHz, whereas the 31-5640-1010 is rated to 1 GHz.