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Benefits of extruded perfluoroalkoxy (PFA) insulated high voltage wire and cable are very similar to FEP:

  • Exceptional dielectric strength without the disadvantages common to equally rated silicone rubber insulated wire 
  • Offers a higher operating temperature and has superior mechanical strength at high temperature as compared to FEP insulation 
  • Wire, cable assemblies and cable bundles have much smaller diameter than silicone wire and, therefore, take up substantially less volume while also having a smaller bend radius allowing the designer to better utilize the space within the system 
  • Low DC corona inception, particularly after numerous temperature cycles 
  • Excellent durability and resistance to dielectric/cooling fluid degradation 
  • Inert when exposed to most industrial solvents and chemicals  
  • Meet NASA low outgassing TML and CVCM levels  
  • Not prone to "pin-holing" and high voltage punch-through when the cable surface is abraded or when strands break during in-field use  
  • More resistant to damage when making contact with sharp edges, although this should be avoided when designing high voltage systems

While difficult to bond to, with the use of TRI's proprietary surface preparations and coating processes, Ready-to-Bond™ versions are available that offer an excellent silastic bond.

PFA cable should not only be considered for use in cable assemblies, but as high voltage hook up wire within encapsulated high voltage power supplies, TWTs and transformers. 

Note:
Pre-conditioning of PFA wire or cable is recommended because PFA insulation will shrink when exposed to temperature cycling. Pre-conditioning should be conducted in an air circulating oven at 204°C (400°F) for one hour. Pre-conditioning should only be performed on cut lengths prior to stripping and any termination procedure. No attempt should be made to condition wire or cable in bulk form or while spooled.

Operating Temperature

-55 to 125ºC

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Part Number

Conductor Gauge

Conductor Strands

Conductor Plating

Conductor Diameter

Voltage Rating

Wire Type

Add To Cart/Request Quote
178-5763 N/A 16 AWG N/A 19/29 N/A Silver Plated N/A 0.070 in N/A 15 kVDC N/A Request Quote
178-5764 N/A 18 AWG N/A 19/30 N/A Silver Plated N/A 0.080 in N/A 15 kVDC N/A Request Quote
178-5765 N/A 20 AWG N/A 19/32 N/A Silver Plated N/A 0.090 in N/A 15 kVDC N/A Request Quote
178-5992 N/A 20 AWG N/A N/A Silver Plated N/A 0.060 in N/A 15 kVDC N/A PFA Request Quote
178-7668 N/A 26 AWG N/A 19/38 N/A Silver Plated N/A 0.050 in N/A 18 kVDC N/A Request Quote
178-7669 N/A 22 AWG N/A 19/34 N/A Silver Plated N/A 0.060 in N/A 20 kVDC N/A Request Quote
178-7670 N/A 20 AWG N/A 19/32 N/A Silver Plated N/A 0.080 in N/A 22 kVDC N/A Request Quote
178-8790 N/A 20 AWG N/A 19/32 N/A Tin Plated N/A 0.080 in N/A 25 kVDC N/A Request Quote
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