1.37 cable

Cable

1.37

N FEMALE

End A

N FEMALE

$1.50

RP-SMA FEMALE

End B

RP-SMA FEMALE

$1.00

50 Ohm DC – 6 GHz

1.37 — N FEMALE to RP-SMA FEMALE

Custom 1.37 cable assembly with N FEMALE and RP-SMA FEMALE connectors. Every cable is hand-assembled, tested, and ships free.

Length Price
1 ft $5.70
6 ft $7.30
Need a different length? Use the Cable Builder

Specs Summary

Cable1.37
Diameter1.37MM
Impedance50 Ohm
FrequencyDC – 6 GHz
Velocity Factor70%
N FEMALE InterfaceType N threaded (MIL-STD-348)
RP-SMA FEMALE InterfaceReverse polarity SMA threaded

About This Assembly

1.37 Cable

1.37mm coaxial cable is a miniature 50-ohm cable slightly larger than 1.13mm, balancing compact size with improved power handling and lower signal loss. Used for internal antenna leads in smartphones, routers, and IoT devices where the 1.13mm cable would be too lossy but space constraints still prohibit larger coax.

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 internal antenna leads in routers, smartphones, and compact IoT devices. 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.

Other 1.37 Configurations

N FEMALE to RP-SMA FEMALE on Other Cables