Cable
RG405
End A
SMA MALE
$1.00
End B
SMA MALE ANGLE
$1.50
RG405 — SMA MALE to SMA MALE ANGLE
Custom RG405 cable assembly with SMA MALE and SMA MALE ANGLE connectors. Every cable is hand-assembled, tested, and ships free.
| Length | Price | |
|---|---|---|
| 1 ft | $14.78 | |
| 6 ft | $23.78 | |
| 25 ft | $57.98 |
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.
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 SMA cable assembly is well suited for compact microwave and millimeter-wave assemblies and MMIC interconnects. The combination of reliable 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 – 18 GHz, limited by the lowest-rated component across the cable and connectors.
