EESeal® filter inserts from Quell offer easy and effective EMI reduction without having to redesign circuits. The thin silicon inserts fit tightly onto standard connector pins — no tools or soldering needed.

Using the proper method and careful application, however, will guarantee your filter inserts perform as intended.

To ensure the best contacts, follow the step-by-step instructions in these brief guides, categorized by connector type.

Also included are recommendations for safely removing filter inserts.

Circular Connectors

By far the most common EESeal application, circular connectors are found on many military and aerospace projects which have strict standards for EMI mitigation.

Types of Circular Connectors Applicable

  • MIL-DTL-5015 Connectors (formerly MIL-C-5015)
  • MIL-DTL-38999 Series Connectors (Mighty Mouse)
  • M12 / M8 / M5 Connectors
  • XLR Connectors
  • DIN Connectors
  • Circular MIL Spec Connectors
  • BNC (Bayonet Neill-Concelman) Connectors

Quell Products for Circular Connectors

  • EESeal® EMI filter inserts
  • EESeal+ EMI filter inserts
  • ESDSeal TVS Diode Arrays
  • Gaskets

Instructions for Circular Connectors

Printable Step-by-Step Instructions

Online Instructions

Video demonstration:

Smaller Dimension Circular Connectors

What do we mean by small? Smaller than your finger. For orders in this category, Quell includes a tool that can push inserts where your finger fails to reach.

Types of Small Circular Connectors Applicable

  • M12 Connectors
  • Mini-BNC
  • SMA Connectors
  • Mini-DIN Connectors
  • XLR Connector

Quell Products for Small Circular Connectors

  • EESeal® EMI filter inserts
  • EESeal+ EMI filter inserts
  • ESDSeal TVS Diode Arrays
  • Gaskets

Instructions for Small Circular Connectors

Printable step-by-step instructions

Online user guide

Video demonstration:

D-Sub Connectors

Filter installation for D-subminiature or D-sub type terminals can be achieved in just seconds. Nevertheless, to do it correctly, consult the instructions or the demonstration video included here:

Types of D-Sub Connectors Applicable

Quell offers inserts in most versions of D-Sub connectors (DA, DB, DC, DD, DE, DF, and DH) as well as in a range of pin counts.

Quell Products for D-Sub Connectors

  • EESeal® EMI filter inserts
  • EESeal+ EMI filter inserts
  • ESDSeal TVS Diode Arrays
  • Gaskets

Instructions for D-Sub Connectors

Printable step-by-step instructions

Online user guide

Video demonstration:

Micro-D & MDM Connectors

EESeal® and EESeal+ filter products for miniaturized versions of D-Sub connectors require slight modifications to the installation method.

Types of Micro-D & MDM Connectors Applicable

  • Standard Micro-D Connectors (MIL-DTL-83513)
  • High-Density Micro-D Connectors
  • Twist Pin Micro-D Connectors
  • Combo Micro-D Connectors
  • Surface Mount and Through-Hole Micro-D Connectors
  • Low-Profile Micro-D Connectors

Quell Products for Micro-D & MDM Connectors

  • EESeal® EMI filter inserts
  • EESeal+ EMI filter inserts
  • ESDSeal TVS Diode Arrays
  • Gaskets

Instructions for Micro-D & MDM Connectors

Printable step-by-step instructions

Online user guide

Video demonstration:

EMI Filter Insert Extraction

In some cases, you may want to remove EESeal filter inserts from a connector.

Quell recommends using its special double-sided tape and the following techniques to extract inserts. Attempts at removal through other methods may cause damage.

Extracting Circular Inserts

Printable step-by-step instructions

Online user guide

Video demonstration:

Extracting D-Sub Inserts

Printable step-by-step instructions

Online user guide

Video demonstration: