Cable
RG405
End A
N MALE
$1.50
End B
RP-SMA FEMALE
$1.00
RG405 — N MALE to RP-SMA FEMALE
Custom RG405 cable assembly with N MALE and RP-SMA FEMALE connectors. Every cable is hand-assembled, tested, and ships free.
| Length | Price | |
|---|---|---|
| 1 ft | $15.48 | |
| 6 ft | $25.48 | |
| 25 ft | $63.48 |
Specs Summary
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.
N Connector
Type N is a threaded RF connector rated from DC to 18 GHz with a durable weatherproof design, making it the preferred interface for outdoor antenna installations, cellular base stations, and commercial wireless infrastructure. Its larger size compared to SMA allows higher power handling and the threaded coupling resists vibration, making it suitable for mobile and fixed outdoor applications.
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.
Common Applications
This N and RP-SMA cable assembly is well suited for compact microwave and millimeter-wave assemblies and MMIC interconnects. The combination of reliable N and RP-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.
RG405 Signal Loss
Approximate attenuation at common RF frequencies.
| Frequency | Loss / 100 ft | Loss / ft |
|---|---|---|
| 100 MHz | 5.5 dB | 0.055 dB |
| 450 MHz | 12 dB | 0.12 dB |
| 900 MHz | 17.5 dB | 0.175 dB |
| 1.8 GHz | 25.5 dB | 0.255 dB |
| 2.4 GHz | 30 dB | 0.3 dB |
| 5.8 GHz | 49 dB | 0.49 dB |
Frequently Asked Questions
What is RG405 coaxial cable used for?
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.
What is the signal loss of RG405?
At 1800 MHz, RG405 has approximately 25.5 dB of loss per 100 ft (0.255 dB/ft).
What frequency range does this assembly support?
This assembly is rated DC – 11 GHz, limited by the lowest-rated component across the cable and connectors.
What is a N connector?
Type N is a threaded RF connector rated from DC to 18 GHz with a durable weatherproof design, making it the preferred interface for outdoor antenna installations, cellular base stations, and commercial wireless infrastructure. Its larger size compared to SMA allows higher power handling and the threaded coupling resists vibration, making it suitable for mobile and fixed outdoor applications.
