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Molex Launches EMI-Filtered Components for Aerospace, Defense

by | Feb 26, 2025

Molex’s latest EMI-filtered interconnects and RF components provide advanced solutions for improved reliability in aerospace and defense systems.

LISLE, IL, Feb 26, 2025 – Molex has launched a comprehensive lineup of Electromagnetic Interference (EMI) Filtered interconnects and Radio Frequency (RF) components to improve signal integrity and electromagnetic compatibility for mission-critical aerospace and defense applications. Molex’s new family of EMI-Filtered D-Sub Pi Adapters and ConnectorsEMI Filter PlatesFixed RF Coaxial Attenuators, and RF Coaxial Terminations are engineered to enhance the overall reliability and efficiency of crucial electronic systems. The launch emphasizes Molex’s commitment to innovation and product development in Aerospace and Defense following its recent AirBorn acquisition.

“These new RF components and EMI-Filtered interconnects extend Molex’s legacy of RF excellence while adding significant product breadth and depth for tackling the toughest connectivity challenges,” said Steven DeFrancesco, general manager, RF, Molex. “Available in an extensive selection of mechanical configurations, we offer customers a ‘one-stop shop’ for compact, lightweight and ruggedized connectivity solutions needed to perform without fail in the harshest, most demanding environments.”

Engineered to comply with rigorous regulatory standards, the solutions integrate into a diverse range of aerospace and defense applications. These include radar systems, airborne radios, night-vision sensors, flight controls, engine controls, navigation systems, tactical weapons, and military global positioning systems. Inventive materials and adaptable designs cater to varying sizes, weights, and power specifications, guaranteeing that these advancements apply to other sectors, such as medical equipment, telecommunications, and industrial automation.

Improve Signal Integrity, Minimize Interference

Molex’s EMI-Filtered D-Sub Pi Adapters and Connectors mitigate EMI and enhance signal integrity while improving compliance with stringent standards. Featuring an optimized Pi filter design, the products provide superior noise suppression, as well as higher capacitance and inductance values for better frequency attenuation. High-quality conductive and shielding materials increase electrical performance and mechanical durability for greater resilience to vibration, shock, extreme temperatures, lightning and exposure to contaminants.

The latest EMI Filter Plates are designed to protect system components and mitigate signal loss caused by electronic noise, all while removing the necessity for separate filters, streamlining assembly time, and reducing costs. Featuring up to 50 lines in a compact design, the filter plates improve design versatility and minimize the space needed on Printed Circuit Boards (PCBs). Snap-in options are available for frequencies ranging from 5 to 18 GHz, making installation easier in applications with limited space. Customers can adjust plate size and shape to fit unique enclosures, while the availability of different materials addresses a vast range of environmental concerns.

Circular EMI Filter Connectors are also available with advanced EMI filtering and line-to-line isolation to ensure reliable signal integrity and consistent power delivery. Customers can choose insulated and ground-line options in hermetically sealed and bayonet styles for better resiliency under challenging conditions.

Stable RF System Performance, Precise Power Control

Molex’s Fixed RF Coaxial Attenuators and RF Coaxial Terminations offer durability and environmental resiliency for aerospace and defense applications. The products are well-suited for military aircraft, missile defense systems, SATCOM links, ship-signal exploitation devices, and electronic warfare systems. Moreover, they improve the reliability of wireless infrastructure, telecommunications, and automotive applications, spanning test and measurement equipment, cell-site infrastructure, network analyzers, automotive test environments, and distributed antenna systems.

The new attenuators deliver precise signal power control and excellent signal integrity to ensure consistent, long-term performance. In addition, they provide heat dissipation at power levels up to 50W and precision impedance matching, helping customers improve system efficiency, prevent equipment damage, improve test-results reliability, and reduce downtime by extending component lifespans. Both product lines are engineered with solderless contacts to withstand wide temperature ranges, shock and vibration forces, and exposure to harsh environments.

Product Availability

Molex’s EMI-Filtered D-Sub Pi Adapters and Connectors are available in more than 250 mechanical configurations and countless custom options, including high-density and circular connectors in various shell sizes, including 9, 15, 25, 37, and 50. Molex’s EMI Filter Plates are also available in different sizes, shapes, and mounting options, which can be tailored to meet specific applications.

Supporting various power ratings and attenuation values, Molex’s Fixed RF Coaxial Attenuators ensure power handling up to 100W and work with RF connectors, including 2.92mm, N-Type, and SMA. They are also compatible with 3.50mm, K-Type, and MIL-STD-348 connectors. The RF Coaxial Terminations are available in various power ranges, power-handling capabilities, and connector types, including military-grade products. They are available through Molex’s global distribution partners, with stock available immediately from Mouser Electronics and DigiKey Electronics.

Source: Molex

About Molex

Molex, established in 1938 and headquartered in Lisle, Illinois, is a global leader in electronic, electrical, and fiber optic connectivity systems. The company offers over 100,000 products, including electrical connectors, optical fiber connectors, and switches, serving industries such as data communications, medical, industrial, automotive, and consumer electronics. Molex pioneered the widely adopted Molex connector in personal computing. As of 2023, Molex reported annual revenues of $3.6 billion and employed approximately 45,000 people worldwide.