RG178 cable

Cable

RG178

BNC MALE

End A

BNC MALE

$2.00

MCX MALE

End B

MCX MALE

$1.00

50 Ohm DC – 3 GHz

RG178 — BNC MALE to MCX MALE

Custom RG178 cable assembly with BNC MALE and MCX MALE connectors. Every cable is hand-assembled, tested, and ships free.

Length Price
1 ft $6.99
6 ft $9.49
25 ft $18.99
Need a different length? Use the Cable Builder

Specs Summary

CableRG178
Diameter1.75MM
Impedance50 Ohm
FrequencyDC – 3 GHz
Velocity Factor69%
BNC MALE InterfaceBNC bayonet (MIL-STD-348)
MCX MALE InterfaceMCX snap-on (CECC 22220)

About This Assembly

RG178 Cable

RG-178 is an extremely thin 50-ohm coaxial cable measuring just 1.75mm in diameter, designed for space-constrained RF assemblies. Its PTFE dielectric and silver-plated conductors deliver reliable performance from DC up to several GHz. Commonly used for internal wiring in test equipment, medical devices, and cellular module pigtails.

BNC Connector

BNC (Bayonet Neill–Concelman) is a quick-connect RF connector featuring a bayonet locking mechanism for fast mating and unmating, rated from DC to 4 GHz. Its ease of use makes it standard in test and measurement equipment, video distribution, two-way radio accessories, and laboratory bench setups where cables are frequently connected and disconnected.

MCX Connector

MCX (Micro Coaxial) is a snap-on RF connector approximately 30% smaller than SMB, designed for compact equipment requiring frequent connections in a small footprint. Rated to 6 GHz, MCX is commonly used in GPS receivers, automotive telematics modules, handheld communication devices, and compact measurement instruments.

Common Applications

This BNC and MCX cable assembly is well suited for ultra-compact internal wiring in test equipment and small wireless modules. The combination of reliable BNC and MCX connectors and custom-cut cable length makes it a practical choice for both field installations and bench setups. Every assembly is hand-terminated, continuity tested, and ships free within the USA.

Other RG178 Configurations

BNC MALE to MCX MALE on Other Cables