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Phase-Track PFlex Cable Assemblies

Home > Products > Assemblies > Phase Critical Assemblies > Phase Track Pflex Cable Assemblies



Times Microwave TF4 dielectric material is the key ingredient, making our PhaseTrack products the best choice for phase critical interconnect applications. 


PhaseTrack cable dielectric has been developed to eliminate the "PTFE knee" in the phase/temperature performance of PTFE-based cables for phase-critical applications.  


The PhaseTrack PFlex product line consists of flexible cables similar to the TMS TFlex cables, but using the TF4 dielectric material for superior phase performance. PFlex is designed primarily for use "in-the-box," often instead of semi-rigid cables.



PFlex cables use a lightweight shield combining helical and wire braid technologies: 

PFlex402 -  typical phase vs. temperature performance:




Physical and electrical performance details are summarized here:

PhaseTrack PFlex 

Part Number PF047 PF405 PF130 PF402
Dielectric Technology TF4TM TF4TM TF4TM TF4TM
Characteristic Impedance (Ohms) 50 50 50 50
Propagation Velocity  82.5 % 82.5 % 82.5 % 82.5 %
Delay (nS/ft) 1.23 1.23 1.23 1.23
    Phase Tracking in ppm    50  50  50   50
Fco (GHz) 142.3 79.9 52.3 38.7
Capacitance (pF/ft) 24.4 24.4 24.4 24.4
Shielding (dBc/ft) -90 -90 -90 -90
k1 1.24487  0.69102  0.43043 0.3399
k2 0,0010516  0.0009697  0.00077 0.0007645
loss at 6 GHz (dB/100ft) 102.7  59.3 38.0 30.9
loss at 18 GHz (dB/100ft) 186.0 110.2 71.6 59.4
loss at 40 GHz (dB/100ft)   291.0  177.0  116.9  -
Diameter (in) 0.062 0.092 0.132 0.160
Minimum Bend Radius (in) 0.250 0.500 0.625 0.750
Mass (lb/1000')  4.5 11.0 18.0 28.0
Temperature Rating (deg C) -55 to +125 -55 to +125 -55 to +125 -55 to +125
Center Conductor Silver Plated Copperclad Steel Silver Plated Copperclad Steel Silver Plated Copper Silver Plated Copper
Outer Conductor Silver Plated Copper Strip Silver Plated Copper Strip Silver Plated Copper Strip Silver Plated Copper Strip
Jacket Blue FEP Blue FEP Blue FEP Blue FEP



Click HERE to download the PhaseTrack PFlex Specification Sheet




 For a comparison and overview of the evolution of these technologies, see our published article Current Innovations In Phase Stable Coaxial Cable Design

PFlex cables are only some of our PHASE CRITICAL PRODUCTS: high- and mid- temperature range cable assemblies available in various sizes and constructions, in flexible and semi-rigid styles. To download a copy of the PhaseTrack Full Line Brochure - click here.

For the latest information on PhaseTrack products, contact your Times Military/Aerospace Regional Applications Engineer