Cable
1.37
1.37 Coaxial Cable
Custom 1.37 cable assemblies. Choose from 73 compatible connectors and any length from 1 to 2 feet.
Specifications
Diameter
1.37MM
Impedance
50 Ohm
Frequency
DC – 6 GHz
Vel. Factor
70%
Max Voltage
335 VRMS
Shield
Silver-plated copper braid
Jacket
PTFE
Bend Radius
0.14 in (3.5mm)
Weight
0.4 lb/100ft
Temp Range
-40°C to +165°C
About 1.37
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.
Attenuation (dB per 100 ft)
100 MHz
7.8 dB
450 MHz
16.5 dB
900 MHz
24.0 dB
1.8 GHz
35.0 dB
2.4 GHz
41.0 dB
5.8 GHz
67.0 dB
Select End A Connector (73 available)
Choose the connector for the first end of your cable.
Select End B Connector
Choose the connector for the second end.
Common Applications
Frequently Asked Questions
What connectors are compatible with 1.37?
1.37 is compatible with 73 connector types including SMA MALE, SMA FEMALE, RP-SMA MALE, RP-SMA FEMALE, SMA MALE ANGLE, and more. All connectors can be paired in any combination.
What is the impedance of 1.37?
50 Ohm — standard for RF systems, test equipment, and antenna feedlines.
What frequency range does 1.37 support?
1.37 supports frequencies from DC to DC – 6 GHz.
How are 1.37 cables assembled?
Every 1.37 cable assembly is hand-terminated and continuity tested at our US facility before shipping. We do not drop-ship pre-made cables — each one is built to your specifications.
What lengths are available for 1.37?
1.37 is available from 1 ft up to 2 ft. Use the cable builder for any custom length.