EESeal® Custom EMI Filter Design Tool

An interactive guide to finding your optimal EMI filter solution.

Analyzing Filter Design...

Calculating attenuation across all valid components.

Welcome to the EESeal® Design Tool

Generate a validated EMI filter configuration tailored to your connector and performance requirements.
This tool provides:

  • Optimized capacitor selection based on application conditions
  • A manufacturable pinout configuration aligned to your connector
  • Predicted attenuation performance across frequency

All recommendations are based on Quell’s qualified component inventory and real-world design constraints.

Step 1: Connector Selection

Step 2: Capacitance Requirement

Enter the frequency range of your EMI noise to find the best performing capacitor.

Step 3: Voltage & Pin Configuration

Used to filter for parts with at least 1.75x this voltage rating.
Enter comma-separated pin labels or ranges (e.g., 1-5, 10, 20) that are grounded to the shell.
For lightning or transient voltage applications, please contact the engineering team for a custom recommendation.

Step 4: Signal Integrity

List any pins with sensitive signals. This allows for a mixed-capacitor design.

Design Recommendation & Results

Your Custom EESeal® Pinout Is Ready
Below you’ll find your optimized EMI filter pinout configuration and predicted attenuation performance based on your inputs.

Next Step:
Submit this configuration to receive a free custom sample, connect directly with a Quell engineer, request a formal quote, or schedule a live design review to validate and refine your project.


Schedule Demo

A. Design Summary

Summary will be generated here...

B. Attenuation Performance Chart

Chart plots attenuation for valid capacitance values (Standard 1.0, 2.2, 4.7 multiples). Recommended values are highlighted. Hover for details.

D. Final Pinout Diagram

All EESeals are designed to go over the pins of the Male connector from any connector pair.
Prefer to work directly with an engineer?