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RF EMI Filter Plates

RF SOLUTIONS

EMI Filter Plates

EMI Filter Plates deliver advanced protection against electromagnetic interference (EMI) for high-performance systems. They enhance reliability and system performance by helping safeguard critical components and optimize functionality across multiple lines. EMI Filter Plates comply with stringent industry standards and are ideal for harsh environments in the aerospace, defense and telecommunications industries.

EMI Filter Plates

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Features and Benefits


Increasingly complex electronics systems require packing more electronics into smaller spaces. EMI can negatively affect system operation and damage components, especially in challenging environments in the aerospace, telecommunications, military and industrial markets. Solutions must be capable of withstanding extreme temperatures, shock and vibration within a space-constrained footprint.

Accurate and reliable EMI filtering helps electronics operate consistently and reliably. This improves system performance, reduces downtime and extends equipment lifetimes. With miniaturized components, designers can meet demands for greater functionality within a smaller package, saving space and reducing costs while streamlining production processes.

Precision-engineered EMI Filter Plates from Molex isolate electronic components to prevent damage, reduce the effects of electronic noise and improve system performance. They support up to 50 lines in a high-density design that saves space and accelerates assembly and maintenance operations compared with discrete filters. These EMI Filter Plates feature robust construction that is optimized for challenging aerospace, military, industrial and telecommunications environments and complies with stringent regulatory standards.

Superior EMI Shielding to Protect Electronic Components

EMI Filter Plates deliver exceptional EMI protection, improving system operation and long-term reliability by helping prevent damage to electronic components. The rugged design complies with rigorous industry standards for challenging environments in the aerospace and defense markets while outperforming surface-mount filters rated over 50 MHz.

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Simplified Assembly and Installation

By eliminating the need for customers to assemble or install discrete EMI filters at the bulkhead, EMI Filter Plates make assembly operations quicker and less costly. Snap-in filter plates, available for 5 to 18 GHz frequencies, further simplify installation in difficult-to-access locations.

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High Density for Space-Constrained Applications

With up to 50 lines included in a high-density form factor and the capability to mix schematics in a single filter plate package, compact EMI Filter Plates support device miniaturization, easing design challenges and helping reduce component size and costs.

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Datasheets and Guides


Applications by Industry


Engine controls
Flight instruments
Navigation equipment

Backup engine controllers for ships
Military global positioning system (GPS) inertial measurement units
Night-vision sensors
Tactical weapons
Target acquisition systems

Implantable defibrillators
Medical diagnostic equipment
Monitoring devices

Graphics workstations
Peripheral and terminal equipment

Cellular base stations
Mobile/cellular repeaters

This is not a definitive list of applications for this product. It represents some of the more common uses.

Frequently Asked Questions


How do EMI Filter Plates improve the performance and reliability of electronic systems? 
EMI Filter Plates enhance performance and reliability by using advanced filtering techniques to block or attenuate EMI across a specified frequency range. By maintaining signal integrity and reducing noise, they prevent crosstalk and distortion in high-frequency applications, ensuring that electronic systems function optimally without interference-induced errors. This leads to fewer system malfunctions and enhances the overall reliability of devices in environments with high EMI potential. 

In what types of applications or industries are EMI Filter Plates most effectively used? 
EMI Filter Plates are crucial in applications where high signal clarity and reliability are required, such as in RF communication systems, radar and navigation systems in aerospace, secure military communication networks and sensitive measurement equipment in industrial electronics. They are used in environments with high electromagnetic pollution to protect systems from external interference and ensure internal noise does not propagate, maintaining device performance across critical sectors. 

What role do EMI Filter Plates play in ensuring safety and preventing interference-related malfunctions? 
EMI Filter Plates play a critical role in safety by preventing EMI from causing unintentional operations or system failures, especially in safety-critical applications like avionics and medical devices. By maintaining stable and interference-free operation, these plates ensure that systems operate within their intended parameters, preventing hazardous malfunctions and ensuring compliance with stringent safety standards.