RGU178 cable

Cable

RGU178

RP-SMA MALE

End A

RP-SMA MALE

$1.00

SMA FEMALE

End B

SMA FEMALE

$1.00

50 Ohm DC – 6 GHz

RGU178 — RP-SMA MALE to SMA FEMALE

Custom RGU178 cable assembly with RP-SMA MALE and SMA FEMALE connectors. Every cable is hand-assembled, tested, and ships free.

Length Price
1 ft $7.99
6 ft $12.49
25 ft $29.59
50 ft $52.09
100 ft $97.09
Need a different length? Use the Cable Builder

Specs Summary

CableRGU178
Diameter.06 INCH
Impedance50 Ohm
FrequencyDC – 6 GHz
Velocity Factor70%
RP-SMA MALE InterfaceReverse polarity SMA threaded
SMA FEMALE InterfaceSMA threaded (MIL-STD-348)

About This Assembly

RGU178 Cable

RGU-178 is an ultra-flexible variant of the RG-178 coaxial cable, retaining the 1.75mm form factor while featuring a stranded center conductor and flexible jacket for repeated bending. It excels in applications requiring both a small footprint and mechanical durability, such as wearable devices, rotating joints, and flexible test leads.

RP-SMA Connector

RP-SMA (Reverse Polarity SMA) uses the SMA threaded coupling mechanism but with the male/female pin convention reversed — the jack has a pin and the plug has a socket. Originally standardized to prevent connection of uncertified antennas to consumer WiFi equipment, RP-SMA is now the dominant connector on commercial WiFi routers, access points, and 2.4/5 GHz antennas.

SMA Connector

SMA (SubMiniature version A) is the most widely used RF connector in the industry, offering a threaded interface that provides a secure, low-reflection connection from DC to 18 GHz. Its compact size, 50-ohm impedance, and broad frequency range make it the default choice for WiFi equipment, software-defined radios, cellular antennas, GPS receivers, and RF test instruments.

Common Applications

This RP-SMA and SMA cable assembly is well suited for flexible pigtails for compact modules and repeated-bend applications. The combination of reliable RP-SMA and SMA 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 RGU178 Configurations

RP-SMA MALE to SMA FEMALE on Other Cables