Microwave Solutions: Capacitors

Brand Expertise: POLYFLON

Microwave Solutions: Capacitors

Brand Expertise: POLYFLON

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Capacitors

Crane designs and manufactures high-performance RF and IF components and millimeter-wave systems and subsystems for defense, space and commercial end-use customers. With over 60 years of experience, we have proven capabilities in major military, communications, electronic warfare, radar, and satellite systems.

Non-Magnetic HV/RF Teflon Capacitors

capacitors

 

 

 

 

 

 

 

 

The combination of pure Teflon™ (PTFE) and Polyflon’s proprietary electroplating process produces non-magnetic capacitors of superior performance. This unique electroplating process ensures a powerful molecular bond between the PTFE and the copper layer to eliminate corona for superb high-voltage performance. In addition to standard designs, Polyflon manufactures capacitors to meet specific customer requirements. Teflon™ is a registered trademark by Chemours. 

Non-Magnetic HV/RF Variable Capacitors NRP Series RP Series TTNRP Series
Piston Non-Rotating Rotating Non-Rotating
Capacitance Range (pF) 0.8 to 125 0.3 to 25 0.8 to 50
Peak Working Voltage (kV) 3 to 10 1 to 10  1
Peak Test Voltage (kV) 6 to 15 2 to 15 2
Peak Current (A) 2.30 to 28.00 0.70 to 7.20 0.60 to 2.60
Diameter (in.) 0/5 to 1.625 0.375 to 1.115 0.275
Non-Magnetic HV/RF Fixed Capacitors RFFC Series PFC Series LPFC Series PRF-FC 10 kV Series PRF-FC 6kV Series
Capacitance Range (pF) 5 to 50 75 to 500 500 to 2000 25 to 150 50 to 250
Pulse Peak Working Voltage (kV) 5 to 15 3 3 5 3
Peak Test Voltage (kV) @ 60 Hz 10 to 30 6 6 10 6

 

About Polyflon

Polyflon® is a leading supplier of superior RF/Microwave laminates, capacitors, and specialty components serving the commercial, medical and military markets. Located in West Caldwell, NJ, Polyflon is dedicated to achieving technical excellence with a primary focus on the customer’s needs.

Polyflon has gained an impressive reputation for its ability to manufacture microwave laminates and substrate materials with superior properties. This capability, along with its now decades-long experience in electroplating and plastics fabrication, has made Polyflon an innovator in commercial, scientific, industrial, medical and space industries throughout the world. 

Polyflon acquired the process from S.W. Farber, and began electroplating PTFE of all shapes and sizes. Given the superior dielectric properties of PTFE, it was quickly found that an ideal market would be in RF and microwave components. One of Polyflon’s first products using PTFE was a custom built capacitor employed in large U.S. Navy shipboard radar program. Using this plating capability, Polyflon began marketing a product line called PolyPlate, an array of PTFE shapes plated with copper.

As the marketplace became aware of Polyflon’s unique capabilities, they quickly received large contracts from companies such as Western Electric for a 0.25-in-thick distribution board used in the first cell site towers and from programs such as Over-the-Horizon radar for which Polyflon supplied custom-built, fixed-value capacitors. Polyflon’s products allowed RF and microwave engineers to develop designs that significantly outperformed their competition.

In 1985, Polyflon was acquired by Crane Co., a diversified manufacturer of highly engineered industrial products with over 11,000 employees working together across 26 countries.

With the desire to expand to other dielectric materials, Polyflon acquired the rights to a technology for laminating irradiated HDPE from the Canadian company Shawinigan Research and Technology (SRT) in 1994. The product line is called POLYGUIDE®.

Other products including NorCLAD® followed by which time Polyflon had gained an impressive reputation for its ability to manufacture microwave laminates and substrate materials with superior properties. This capability, along with its now decades-long experience in electroplating and plastics fabrication, made Polyflon an innovator in commercial, scientific, industrial, medical and space industries throughout the world. 

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