View or download product literature

    RFI Corporation was established in 1961 and today is an industry leader in solving complex EMI/EMC/RFI, pulse and power problems for the aerospace, defense, homeland security, medical, industrial and commercial markets.

    Today with more than 100,000 existing designs, RFI has established a long-term quality reputation in the industry, from EMI/EMC/RFI power filters to high voltage and recon mica capacitors to power / flyback transformers and various magnetic components, including pulse forming networks. RFI Corporation’s engineering and design work in high-voltage magnetics has won various recognition awards from the nation’s leading Fortune 500 corporations.

    RFI quality standards include AS9100, ISO 9001:2015, ITAR registered, MIL-STDs 220/285/202/461/462, J-STD-001, QPL to MIL-PRF-15733, UL 1283, Tempest, NEMA STDs 1 -12, FCC Part 15, MIL-PRFs-27 and 19978, MIL-N-23182, and MIL-C-39001. Further, RFI’s extensive engineering, manufacturing & testing capabilities incorporate lean manufacturing and six sigma principals throughout their 60,000-square-foot facility.

    Products include:

    • Cylindrical Filters

    • Miniature Filters

    • Subminiature Filters

    • Rectangular Filters

    • Power Filters

    • General Purpose Filters

    • Telephone & Data Line Filters

    • Signal Filter Assemblies for Secure Installations

    • Signal & Telephone Circuit Filters

    • Power Line Filters for Shielded Areas

    • Power Factor Correction Inductor Assemblies

    • Feed Through Capacitors

    Downloadable Product Literature:

    RFI Capabilities Catalog

    RFI Filters Catalog


    Koehlke: Your RFI Authorized Distributor

    Koehlke is your go-to supplier as an authorized distribution partner for RFI filters, capacitors and magnetics. On our site, you will find links to product catalogs, technical data, and part number searches for availability.

    • For RFI detailed product information, please download the PDF literature located below.

    • For additional information or to request a quote, our customer service team is at your service from 8 am - 5 pm EST weekdays through our Live Chat feature, or by calling 1-877-KOEHLKE (1-877-563-4553).

    • Begin a product search. To search a specific product, enter the part number or keywords into the search box.

    • To view a product category, select from the list to the right.

    • For additional information on any of our offered products, for technical assistance, or to request a formal quote, please contact sales@koehlke.com.


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