Cable
RG142
End A
N FEMALE
$1.50
End B
SMA MALE
$1.00
RG142 — N FEMALE to SMA MALE
Custom RG142 cable assembly with N FEMALE and SMA MALE connectors. Every cable is hand-assembled, tested, and ships free.
| Length | Price | |
|---|---|---|
| 1 ft | $16.48 | |
| 6 ft | $28.23 | |
| 25 ft | $72.88 | |
| 50 ft | $131.63 | |
| 100 ft | $249.13 | |
| 250 ft | $601.63 |
Specs Summary
About This Assembly
RG142 Cable
RG-142 is a double-shielded 50-ohm PTFE coaxial cable rated for operation from cryogenic temperatures up to +200°C with a 0.195" outer diameter. Its dual-shield construction provides excellent EMI rejection while the PTFE dielectric ensures stable electrical performance across a wide frequency range. The preferred choice for military, aerospace, and high-power RF applications.
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.
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 N and SMA cable assembly is well suited for high-temperature and high-power military or aerospace RF assemblies. The combination of reliable N 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.
RG142 Signal Loss
Approximate attenuation at common RF frequencies.
| Frequency | Loss / 100 ft | Loss / ft |
|---|---|---|
| 100 MHz | 3.8 dB | 0.038 dB |
| 450 MHz | 8.5 dB | 0.085 dB |
| 900 MHz | 12.5 dB | 0.125 dB |
| 1.8 GHz | 18.5 dB | 0.185 dB |
| 2.4 GHz | 21.5 dB | 0.215 dB |
| 5.8 GHz | 37 dB | 0.37 dB |
Frequently Asked Questions
What is RG142 coaxial cable used for?
RG-142 is a double-shielded 50-ohm PTFE coaxial cable rated for operation from cryogenic temperatures up to +200°C with a 0.195" outer diameter. Its dual-shield construction provides excellent EMI rejection while the PTFE dielectric ensures stable electrical performance across a wide frequency range. The preferred choice for military, aerospace, and high-power RF applications.
What is the signal loss of RG142?
At 1800 MHz, RG142 has approximately 18.5 dB of loss per 100 ft (0.185 dB/ft).
What frequency range does this assembly support?
This assembly is rated DC – 6 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.
