1.37 cable

Cable

1.37

RP-SMA MALE

End A

RP-SMA MALE

$1.00

RP-TNC MALE

End B

RP-TNC MALE

$1.00

50 Ohm DC – 6 GHz

1.37 — RP-SMA MALE to RP-TNC MALE

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

Length Price
1 ft $5.20
6 ft $6.80
Need a different length? Use the Cable Builder

Specs Summary

Cable1.37
Diameter1.37MM
Impedance50 Ohm
FrequencyDC – 6 GHz
Velocity Factor70%
RP-SMA MALE InterfaceReverse polarity SMA threaded
RP-TNC MALE InterfaceReverse polarity TNC 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.

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.

RP-TNC Connector

RP-TNC (Reverse Polarity TNC) uses the TNC threaded shell with reversed pin conventions, similar to RP-SMA. It is used on some commercial WiFi access points and outdoor CPE antennas, particularly in older Cisco and Linksys equipment, and offers better vibration resistance than RP-SMA in demanding outdoor environments.

Common Applications

This RP-SMA and RP-TNC cable assembly is well suited for internal antenna leads in routers, smartphones, and compact IoT devices. The combination of reliable RP-SMA and RP-TNC 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

RP-SMA MALE to RP-TNC MALE on Other Cables