VFS6VD81E221U31A

Overview

The VFS6VD81E221U31A is an LC (T-Type) EMI filter manufactured by Murata Electronics. It features a third-order low-pass configuration with a single channel and a capacitance of 220 pF. The component utilizes a radial package with three leads, measuring 8x2.5 mm. Designed for robust performance, it supports a current rating of 6 A and operates within a temperature range of -40°C to +105°C. Packaging is provided in Ammo Pack format.

Feature Summary

• Integrates EMIGUARD technology combining EMIFIL filtering with varistor functionality for enhanced protection.
• Employs a T-type LC network architecture to deliver third-order low-pass filtering characteristics.
• Features a compact radial package design suitable for through-hole mounting applications.

Applications

• Electromagnetic interference suppression in electronic circuits
• Common mode noise reduction in signal lines
• Surge protection integration via varistor function

Procurement Notes

Verify the specific ordering suffix and package type against the official Murata datasheet to ensure compatibility with assembly processes. Confirm that the radial lead form factor aligns with the target PCB layout requirements before finalizing procurement decisions.

Selection Notes

Select this component when a combined filtering and surge protection solution is required in a single package. The T-type topology offers superior attenuation compared to basic RC networks. Ensure the 6 A current rating meets the application's operational demands without exceeding thermal limits.

Part Context

This part belongs to Murata's EMIGUARD series, which merges EMI filtering capabilities with varistor-based transient suppression. It serves as a specialized solution for environments requiring both high-frequency noise attenuation and voltage spike protection within a compact footprint.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Murata's official cross-reference tools or contact technical support for verified alternatives if this specific model is unavailable.

FAQ

What is the primary function of the EMIGUARD feature in this component?

The EMIGUARD feature integrates a varistor function alongside standard EMI filtering, providing protection against voltage transients while suppressing electromagnetic interference.

How does the T-type LC network benefit this filter?

The T-type LC network provides a third-order low-pass response, offering steeper roll-off and more effective attenuation of high-frequency noise compared to lower-order filters.