In today’s competitive environment, Designers are facing the tough challenge of developing systems that require high performance, shorter lead times-to-market, and tremendous cost reductions. At RFCI, we design & manufacture the most challenging ferrite devices to provide high performance, high reliability, and innovative solutions to our customers.

Our highly skilled and talented engineering team has a combination of many years of working in ferrite products with extensive design history. With support of oversea manufacturing facilities for mass production, our prices are very competitive. Currently, we’re one of the biggest suppliers to the Base Station markets.

RFCI proudly offer the markets a broad range of ferrite devices which are unequaled in performance, quality and reliability. In keeping with our commitment to quality, all our products are manufactured in ISO 9001:2008 quality approved facilities. We’re continuously improving our process to supply the highest performance products at lower price with the quickest time-to-market.

We are ready to develop Isolators/Circulators to your specifications and we will happily consult on your requirements, develop and manufacture for your cost-effective products that are delivered right and on time.

RF Circulator Isolator Inc., (RFCI) specializes in the design, development and manufacturing of a broad range of quality Ferrite Circulators and Isolators. Available in single or multi-junction topographies, the RFCI product line of Ferrite Circulators and Isolators are specifically designed for use in varied environmental and temperature extremes. We provide circulators and isolators spanning the frequency range of 50 MHz to 20.0 GHz in varying bandwidths, tailored to cover all standard and popular bands commonly used throughout the market place. All devices are ROHS Compliant and material declarations are in place.

  • Drop-In Flange Mount, Straight or Gull Wing Tab.
  • Surface Mount, Pin or Tabs Style.
  • Coaxial, SMA and N Type connector.
  • Clockwise (CW) and Counter-Clockwise rotation (CCW).
  • Excellent IMD Performance.
  • Magnetically Shielded Packages and Robust Construction for High Reliability.
  • Reflected power from 1 Watt to 200 Watts pending on Model Number (contact factory) for your particular requirement.

This website lists a complete line of standard Ferrite Circulator and Isolator designs and capabilities. However, we work with our customers to meet their specific requirements. We encourage our customers to talk to us about their application and special mechanical and/or electrical requirements. Many times a standard Ferrite Circulator or Isolator design can be optimized for best performance over a certain parameter. We also encourage our customers to examine our product options on the website, we can save you time and expense.

Let us discuss your program needs.  Give us a call at (408) 977-1526, Fax us at (408) 977-1534 or send an E-mail to

RFCI is a World Supplier for Commercial applications, Cellular and Wireless Telecommunications.