Electromagnetic Integrated Solutions: +1(814) 474-1571

Custom Power Filters

Custom Application Specific Power Filters

Rarely does A 100% off-the-shelf power filter completely satisfy the mechanical, electrical and power requirements and constraints of a sophisticated OEM design. Whether modifying an existing power filter design, working from a "clean sheet: approach, or integrating various technologies into a sub-assembly, the resulting power filters will be a product tailored to your project's design, logistic and budgetary requirements.


Options include:

Power Filter Customization Options

Full Customization

Custom Power Filters

API Technologies can "clean up" your system by creating easy-to-install assemblies that contain all the components and filtering solutions in one compact package.


Application Specific Options:
  • EMI filtering
  • Power distribution
  • Transient protection
  • Indicator lights
  • Circuit breaker protection
  • Leads or studs
  • Voltage cut-off
  • Agency approvals
  • Reverse Polarity

Military & Aerospace Power Filters

Military Power Filters

Our Power Filters for Military and Aerospace applications are available in both standard and custom designs. Our electromagnetic compatibility expertise in the tempest arena can help you meet MIL-F-15733 and MIL-STD 461 standard requirements.

  • High common and differential mode attenuation
  • Standard designs up to 100 Amps
  • Excellent insertion loss characteristics
  • Voltage rating 115-250VAC and 400VDC up to 400 Hz
  • Available to meet MIL-F-15733, MIL-STD-461, and MIL-STD-1399 standards
  • Available to meet TEMPEST and FCC requirements
  • Rugged Construction


  • Secured Communications
  • Switching Power Supplies
  • Data processing Equipment
  • Ruggedized Computers
  • Radar
  • Electronic Warefare
  • Ground & Air Weapon Systems
  • Satellites
  • Ship board systems
  • Land based vehicles
  • Fixed and mobile control stations

Power Filters for Communications Applications

MPC-010/-015: Miniature PCB Power Filters

API Technologies can combine filters with other components around the filtering into one package to have the smallest space solution as well as the lowest price solution to filter and condition the power to your communications infrastructure equipment, as well as eliminate emissions that can contaminate your distributed AC and DC power. API Technologies' engineering expertise and vertical integration reduces your speed-to-market, as well as saves you money.

  • Conducted filtering from 10 KHz to 1 GHz
  • Current ratings up to 500 Amps
  • Maximum voltage ratings up to 400 VDC and 240VAC standard
  • Various capacitance values and custom voltage ratings
  • Incorporate specified circuit breakers and mounting handles
  • Customized ground plane
  • Design for CISPR22/24 and EN55022/24 regulations
  • RoHS Complaint


  • Cellular Base Stations
  • Communications racks
  • Telephone switching devices
  • Traffic control systems
  • IT hubs
  • Data centers

Power Filters for Medical Applications

MSP: Mini Surface Mount Power Filters

API’s many years in providing EMI/RFI solutions has given us the know-how to design products to meet specific constraints and requirements of the medical industry. We will build a high reliability, high performance custom power filters to meet your system and all EN requirements.

  • Accomodate non-magentic requirements
  • High performance/high-reliability
  • Low leakage
  • Effective conducted filtering from 10 KHz to 1 GHz
  • Current ratings up to 10 Amps
  • Maximum voltage ratings up to 400 VDC and 240VAC standard
  • Meet EN 55011, EN 55022, and IEC/EN60601-1-2 requirements
  • RoHS Compliant


  • x-Ray equipment
  • MRI & CAT scan machines
  • Portable dialysis machines
  • Laboratory equipment
  • Heart defribrillators

Power Filters for Industrial Applications

Industrial Power Filters

Power Filter plug-and-play designs cover a range of industrial and instrumentation applications that will address any of your power filtering needs with current ratings as high as 500 Amps.

  • Effective conductive filtering from 10 KHz to 30 MHz
  • Switched & fused options
  • Current ratings up to 500 Amps
  • Low leakage IEC inlet
  • Circuit breaker protection
  • Ruggedized contruction


  • Process control equipment
  • Welders
  • Ultrasonic cleaners
  • Ruggedized computers
  • Industrial washing machines
  • Gaming machines
  • Elevators, escalators, moving sidewalks