• TNP-C3

50 ohm TNC Crimp Plugs

Designed as a threaded version of the BNC, the TNC series features screw threads for mating.

Key Features and Benefits

  • VSWR of 1.1 or less up to 2 GHz, 1.2 or less up to 4 GHz.
  • Canare crimp design ensures quick and reliable installation
Be sure to use Canare Crimp Tool.
  • Tech Data
  • Tech Note
  • Downloads

StraightCrimp Type

Model Suitable Cable Boot Die Set Standard package
TNP-C3 L-3D2V, 3D-2V CB03 TCD-35D 20 pcs
TNP-C31 L-3D2W, 3D-2W CB04 TCD-3151D
TNP-C4 RG-58C/U, RG-58A/U CB03 TCD-35D
TNP-C5 L-5D2V, 5D-2V CB05A TCD-35D
TNP-C51 L-5D2W, 5D-2W - TCD-3151D

Return loss

  • TNP-C3

Technical Note

Voltage Standing - wave Ratio (VSWR) and Return Loss

Terminating the receiving end of a limited length coaxial cable using a resistance value not equal to its characteristic impedance creates a reflected wave that returns back down the cable to the sending end. The result is interference developing between the travelling wave and the return wave which results in a standing wave that causes voltage levels to fluctuate. The degree to which terminating resistance matches the characteristic impedance is indicated using the VSWR or voltage standing-wave ratio standard shown in Fig. 1. Going hand in hand with the VSWR ratio is the return loss factor which measures the size of the reflected wave current in relation to the travelling wave current. (See Fig. 2)

Fig. 1 Voltage Distribution Over Coaxial Cable

VSWR Return Loss (dB)
2 9.54
1.5 13.98
1.2 20.83
1.1 26.44
1.05 32.26
1.02 40.09
1.01 46.06

Fig. 2 VSWR to Return Loss Conversion Table





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