Spectrum Control, an established company in EMI protection, introduces Space Grade EMI filters that meet the stringent requirements of existing and emerging space technologies. Available in feed-thru, Pi, L circuits in panel mount and surface mount packages (SMT), the EMI filters deliver high reliability and durability in satellite systems, spacecraft, antenna arrays, launch systems, orbital infrastructure, surveillance and tracking, ground transmission, and ground communications and networks.

The SMT Hi-Rel and space EMI filters are compactly designed with either feed-thru circuits or Pi circuits (with ferrite beads) to occupy less space on the printed circuit board (PCB) and provide cost and time advantages compared to through-hole filters. Higher-grade dielectric materials are employed in the SMT filters to facilitate military and space applications. 

Key Features:

• Market Gap Solution: Addressing a critical market gap, this EMI filter series emerges as the first of its kind, offering support for MIL-PRF-28861 S level product, an area currently void in the QPL (Qualified Products List).
• Hermetic and Resin Sealed Filters: Crafted with precision, the hermetic and resin-sealed panel mount products guarantee reliability and durability. Designed and manufactured in the USA, these products are a natural extension of Spectrum Control's renowned MIL-PRF-28861 Class B offering. 

Hermetically Sealed Threaded Case Filters: 

These filters, available in popular .375", .410", and .690" case diameters, provide high-performance EMI filtering from 10 KHz to over 10 GHz. 

Key Features:

• QPL Filters: Compliant with MIL-F-15733 and MIL-F-28861, DSCC 84084 QPL filters are available, ensuring reliability.
• Diverse Case Diameters: With case diameters of .375", .410", and .690", these filters offer versatility in deployment.
• Wide Voltage Range: Voltage ratings from 50V to 400VDC/240VAC (400 Hz) cater to various power system requirements.
• Environmentally Resilient: Impervious to high moisture environments, solvents, and severe conditions, these filters ensure performance in challenging environments.
• High-Temperature Terminal Construction: Designed with high-temperature terminal construction, these filters are built to endure demanding conditions.
• D-slotted Bushings: Incorporating D-slotted bushings for enhanced stability and performance.
• Reliability Testing: High reliability testing options are available, providing added assurance in critical applications.

Resin Sealed Bolt-in EMI Filters:  

Spectrum Control's Resin Sealed Bolt-in EMI Filters provide a robust solution for filtering signal/data lines and DC power lines. With a wide range of sizes and multiple circuit configurations, these filters offer flexibility in diverse applications.

Key Features:

• Versatile Sizes: Available in a range of sizes from 4-40 thread through 5/16-24 thread, catering to varied needs.
• Voltage Ratings: With voltage ratings up to 500VDC/220VAC (400 Hz), these filters accommodate different power requirements.
• QPL Filters: MIL-PRF-15733 QPL filters are available, ensuring adherence to stringent standards.
• Multiple Circuit Configurations: Offering multiple circuit configurations, including C, L, and Pi, for enhanced flexibility.
• Metric Threaded Filters: Metric threaded filters are available, expanding the range of applications.

Spectrum Control leveraged its proven experience in space programs, including deep space and scientific missions and satellite communications, to design the Space Grade EMI filters. Both filters have undergone extended thermal shock and voltage conditioning. Additionally, extensive destructive physical analysis has been conducted on the single-line EMI filters. Electrical and mechanical design engineers, and EMI/EMC engineers developing space, military, and aerospace systems will improve their designs with the space EMI filters. In addition to space applications, the EMI filters can be designed for military vehicles and watercraft, radar, commercial and military aircraft, and air traffic control systems.

Click here to learn about Spectrum Control's Hermetically Sealed Threaded Case EMI Filters.

Click here to learn more about Spectrum Control's Resin-Sealed Bolt-in EMI Filters.