Comus International is proud to introduce the BFM series to our growing reed relay Menu. The new BFM series is a high reliability instrumentation grade relay for use in In­strumentation, automatic test equipment probe cards and load boards.

The new BFM series takes practical advantage of Comus’ vertical manufacturing capabilities. Our COTO Technology BV reed switch is used exclusively in every reed relay we make which allows for the lowest industry lead times, superior quality, stable contact resistance, and the very best in reed relay performance.

The BFM series are industry standard footprint 1Form A and 1Form C potted relays with external metal shells to reduce magnetic interaction. The BFM relays also offer optional Electrostatic and Coaxial (50O impedance) shields and are ideal for use in high frequency applications.

The BFM series have a standard lead time of 6 to 8 weeks. 1,000 quantity prices start at $4.52 for the 1Form A and $6.47 for the 1Form C BFM.



  • 1Form A and 1Form C contacts (hermetically sealed)
  • Industry Standard Footprints
  • Ideal for Test and Instrumentation applications
  • Optional Electrostatic Shield or Coaxial (50O impedance)
  • High Insulation Resistance: 1012 O MIN (Form A)
  • Metal Cover (reduces magnetic interaction)


APPLICATION: Testing Systems

Important characteristics for Reed Relays

  • Long Life
  • High Reliability and Repeatability
  • 50O Characteristic Impedance

Interface Boards or DUT load boards for LSI, VLSI, Memory & Analog/Mixed  signal ATE Test Systems require consistent and repeatable test results.

Load boards for expensive ATE testers are constantly being pushed to new  limits and with this need for new and innovative reed relays. The requirements of RF, stable contact resistance, faster testing and keeping test costs down are an absolute must.


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01255 862 001