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Discrete Filters

Bandpass, Low Pass, High Pass, or Notch

Miniature discrete component filters are available from HF to X-band and are designed to give optimal performance where small size is critical. Electrical and mechanical requirements for each design are computer-generated, taking into consideration realizable “Q” and environmental conditions, then analyzed using our unique software, thereby reducing the amount of trial-and-error alignment.

Features & Benefits

  • 5 MHz to 10 GHz
  • Bandwidth: 3 db to >100%
  • Bandpass, lowpass, hipass, or notch
  • Surface mounts, pins or connectors
  • Monotonic and elliptic responses


  • Transmit/Receive Modules
  • Up/Down Converters
  • Instrumentation
  • Satellite Communications
  • Radar
  • Broadcast
Product Series Center Frequency Bandwidth Temperature Range Power Handling Data Sheet
L-Band  1500 MHz 800 MHz -55 to 85 deg. C 1 W PDF
S-Band  3000 MHz 2000 MHz -55 to 85 deg. C 1 W PDF


Filter designs are available to satisfy bandpass, lowpass, highpass, or band reject applications. We have found through our years of service that one design does not fit all needs. To achieve today’s required electrical performance, Smiths Interconnect’s engineers use a variety of electrical circuits ranging from coupled tank, mesh, resonant ladder, highpass/lowpass, or helical to achieve the desired performance. In some cases, a combination of circuit designs is used. This enables our engineers to provide you with the highest performance filters available.
Smiths Interconnect has developed a series of package types to satisfy most industry needs. These range from small TO8 packages to 1/4-wave designs. Actual package selection will depend upon your specific performance needs. All machining is done on computer-controlled machines, thereby reducing error, and assuring repeatability of critical processes. Our designs incorporate high “Q” air wound or toroidal inductors and monolithic ceramic capacitors. Regardless of the application, our internal processes and procedures help ensure that all filters are fully compliant to customers’ specifications.

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