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531-40078 — Amphenol product photo
Amphenol

Amphenol RF 531-40078 F Type Receptacle, 75 Ohm, 1 GHz

MPN531-40078
Active

Amphenol RF F Type receptacle, female socket, 75 Ohm, 1 GHz, panel mount bulkhead, crimp termination, RG-179/187 cable group, tin body finish.

$3.7600Ref. price · indicative, final on quote
531-40078 datasheet
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MOQ1 pcs
  • New & original stockTraceable channels only — no mixed lots, no re-taped reels.
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Specifications

531-40078 Technical Specifications
ParameterValue
Mounting typePanel Mount
Connector typeReceptacle, Female Socket
Fastening typeThreaded
Frequency - max1 GHz
Mounting featureBulkhead - Front Side Nut
Cable groupRG-179, 179A, 179B, 187, 187A, Belden 9221, M17/94-RG179
Operating temperature-40°C~140°C
Body materialBrass
Housing colorSilver
Dielectric materialPolypropylene (PP)
Center contact materialBeryllium Copper
PackageBulk
Includes4 pcs - 1 Connector, 1 Ferrule, 1 Lockwasher, 1 Nut
Impedance75Ohm
Body finishTin
Mating cycles500
Insertion loss0.1dB
Number of ports1
Shield terminationCrimp
Contact terminationCrimp
Center contact platingTin

Product details

F Type Bulkhead Receptacle for RG-179 Cable Runs

The 531-40078: It mounts in a panel hole with the front-side nut and a lockwasher, and the cable shield is terminated by crimping the included ferrule over the braid. The connector is rated to 1 GHz with a 0.1 dB insertion loss, which keeps the signal clean through a multi-drop tap or wall plate.

This receptacle is built for RG-179, RG-179B, RG-187, RG-187A, Belden 9221, and M17/94-RG179 cables. The center contact crimps onto the signal conductor, and the shield ferrule crimps over the braid.

Threaded Fastening and Panel Fit

Fastening is threaded — the mating F Type plug screws onto the receptacle body, giving a vibration-resistant connection that will hold through 500 mating cycles. The bulkhead mount uses a front-side nut, so the receptacle body stays fixed while the nut tightens from the panel exterior.

Rated for -40°C to 140°C, so it can live in an outdoor CATV pedestal or a satellite LNB housing. The kit includes the connector, ferrule, lockwasher, and nut — four pieces total, shipped in bulk packaging.

Frequently asked questions

Is 531-40078 a 75 Ohm BNC connector?

No — the 531-40078 is an F Type receptacle, not a BNC. It uses the threaded F Type interface standard for CATV and satellite equipment, with a 75 Ohm impedance. A BNC connector uses a bayonet lock and a different interface geometry.

What cable is compatible with 531-40078?

It is compatible with RG-179, RG-179A, RG-179B, RG-187, RG-187A, Belden 9221, and M17/94-RG179. It is not designed for RG-59 — the dielectric diameter and braid coverage of RG-59 will not fit the ferrule or center contact.

What is the insertion loss of 531-40078?

The specified insertion loss is 0.1 dB, measured at 1 GHz. That is low for a threaded F Type connector and indicates a well-controlled impedance match through the interface.