D-SUB Filter Connectors

Our Filtered D-Sub Connectors are designed to provide reliable signal transmission while effectively suppressing conducted and radiated electromagnetic interference (EMI). By integrating high-performance filtering components directly into the connector body, these D-SUB Filter Connectors reduce noise at the interface level, helping engineers meet strict EMC requirements without adding external filters.

Optimized for compact system layouts, these connectors combine mechanical robustness with stable electrical performance, making them ideal for industrial electronics, communication systems, and mission-critical equipment.

Key Features

• Integrated EMI Filtering
  Built-in capacitive or LC filtering elements suppress high-frequency interference directly at the connector interface.

• Space-Saving Design
  Eliminates the need for external EMI filters, simplifying PCB layout and reducing system size.

• Standard D-Sub Compatibility
  Available in common pin counts and footprints, ensuring drop-in replacement for standard D-sub connectors.

• Stable Electrical Performance
  Low insertion loss within the signal band while providing high attenuation at noise frequencies.

• Reliable Mechanical Construction
  Rugged metal shell options enhance shielding effectiveness and long-term durability.

• Customization Support
  Filter values, pin assignments, and shielding structures can be tailored for specific EMC requirements.

Electrical Characteristics (Typical)

Applications

Filtered D-Sub connectors are widely used in systems where signal integrity and EMC compliance are equally critical:

• Industrial Control Systems
  Reduces conducted noise in PLCs, automation controllers, and I/O modules.

• Communication Equipment
  Maintains signal stability in data and control interfaces, often used alongside RF Components for system-level noise control.

• Medical & Test Equipment
  Supports low-noise signal transmission in sensitive measurement environments.

• Power & EMC Solutions
  Commonly integrated with EMI Filter architectures and Power Line Filters to improve overall system compliance.

• Embedded & Modular Electronics
  Ideal for compact designs requiring connector-level EMI suppression without PCB redesign.

Why Choose Our Filtered D-Sub Connectors

Compared with standard connectors plus external filtering, our Filter D Sub Connectors offer a cleaner, more reliable solution by addressing EMI at its entry point. This approach reduces component count, improves assembly efficiency, and enhances EMC performance consistency across production batches.

With proven manufacturing processes and flexible customization capabilities, we help customers shorten development cycles while meeting international EMC standards.

Custom Design & Support

We provide engineering support for:

• Custom filter capacitance or LC configurations

• Special pin layouts and shell options

• Integration with system-level Power Line Filters or Emi Filter designs

• Compliance assistance for EMC testing stages

Contact our team to discuss your application requirements and receive tailored recommendations.