RG405 cable

Cable

RG405

RP-SMA FEMALE

End A

RP-SMA FEMALE

$1.00

SMA MALE

End B

SMA MALE

$1.00

50 Ohm DC – 18 GHz

RG405 — RP-SMA FEMALE to SMA MALE

Custom RG405 cable assembly with RP-SMA FEMALE and SMA MALE connectors. Every cable is hand-assembled, tested, and ships free.

Length Price
1 ft $8.99
6 ft $18.99
25 ft $56.99
Need a different length? Use the Cable Builder

Specs Summary

CableRG405
Diameter.086 INCH
Impedance50 Ohm
FrequencyDC – 18 GHz
Velocity Factor69%
RP-SMA FEMALE InterfaceReverse polarity SMA threaded
SMA MALE InterfaceSMA threaded (MIL-STD-348)

About This Assembly

RG405 Cable

RG-405 (UT-085) is a 0.086" semi-rigid coaxial cable — smaller than RG-402 — with a solid copper outer conductor delivering superior shielding and phase stability. Commonly used in microwave integrated circuit (MMIC) assemblies, millimeter-wave test setups, and anywhere an extremely compact rigid interconnect is required up to 65 GHz.

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 compact microwave and millimeter-wave assemblies and MMIC interconnects. 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 RG405 Configurations

RP-SMA FEMALE to SMA MALE on Other Cables