Protecting Health Systems with EMI Filters for Medical & Imaging Applications
NexTek provides high current EMI/RFI power filtering for many medical device and imaging applications. Feedthrough filters remove unwanted high frequency RF energy from major power feed lines. NexTek filters also utilize a compact, rugged design perfectly suited for use within medical device and imaging designs. With their compact form factors and high current level ratings (50-600 amps), NexTek power filters fit a wide range of healthcare applications.
Key Medical Standards and Requirements
Medical and imaging systems operate in environments where clean power, signal integrity and system reliability are essential. Equipment must perform as expected while operating near other electrical systems, RF sources, power supplies and sensitive diagnostic electronics. EMI/RFI filtering helps reduce unwanted high-frequency noise on power lines, supporting stable operation and helping equipment meet emissions and susceptibility requirements.
For medical electrical equipment, EMC performance is commonly evaluated against IEC 60601-1-2, which addresses basic safety and essential performance in the presence of electromagnetic disturbances and emissions from medical electrical equipment and systems. The FDA also provides guidance on EMC testing and documentation for electrically powered medical devices and devices with electronic circuitry.
Technical Selection Criteria When Choosing Filters
Selecting the right filter starts with the electrical and mechanical requirements of the equipment. Engineers should evaluate current rating, voltage rating, capacitance value, insertion loss performance, operating frequency range and mounting style. For medical imaging and high-power medical devices, compact size and rugged construction are also important because filters are often installed inside systems with tight space constraints and demanding uptime requirements.
Recommended Imaging Applications
NexTek EMI/RFI filtering solutions are well-suited for imaging systems that use high-current power feeds and sensitive electronics. These systems must manage unwanted noise while maintaining image quality, uptime and reliable operation in clinical environments.
- MRI support equipment
- CT scanning systems
- X-ray imaging equipment
- Ultrasound systems
- PET and SPECT imaging equipment
- Fluoroscopy systems
- Mammography equipment
- Digital radiography systems
- Medical laser imaging systems
- Imaging power supplies and power distribution units
Recommended Medical Applications
Medical devices often operate near monitors, communication systems, power supplies and other equipment that may create or be affected by electromagnetic interference. EMI/RFI filtering can help protect sensitive electronics, support EMC compliance and reduce the risk of system disruption.
- Surgical systems and operating room equipment
- Patient monitoring systems
- Diagnostic equipment
- Laboratory and test equipment
- Medical power supplies
- Robotic-assisted medical systems
- Therapeutic laser systems
- Dialysis and fluid management equipment
- Hospital-grade power distribution systems
- Mobile and portable medical platforms
Recommended Products
HPR Series:
HPR Series high-current C-type feedthrough filters help solve EMI challenges in demanding medical and imaging power systems. Designed for 35 A RMS to 400 A+ applications, they provide rugged filtering performance under shock, vibration, and temperature stress.
HCP Series:
HCP180 Series 200 A Pi filters provide high-current EMI/RFI suppression for demanding medical and imaging power systems. Designed for robust attenuation in compact packages, they support reliable performance in applications where power quality, EMC compliance, and system uptime are critical.
FSF Series:
FSF055 Series 55 A redundant filters help improve reliability in high-current medical and imaging power systems. Their dual configured capacitor circuit provides dielectric redundancy and added protection against random in-operation failures in a compact feedthrough filter package.
Related Information
EMC/EMI Filters Catalog
Comprehensive overview of NexTek EMI/EMC filter solutions, including product specifications, performance characteristics, and configuration options for high-current applications.
HPR Series High Current Filter Selection Guide
Selection guide for choosing HPR Series feedthrough filters based on current ratings, electrical performance, and application requirements.
Compact Filtering for High Current & High Frequency Applications
Technical article explaining compact EMI filtering solutions, design considerations, and filter selection for high-current and high-frequency applications.
NexTek Technical Resources
Access application notes, white papers, product catalogs, technical articles, and engineering resources for EMI filters, surge protection, and EMC solutions.
Common Standards
- FCC
- UL
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