B82721K2102U030 EPCOS (TDK): Comprehensive Analysis and Application Overview

The B82721K2102U030 by EPCOS (TDK) is a high-performance electrical component used for filtering and suppression in various electronic circuits. This article provides an in-depth analysis of its features, advantages, functions, and application areas, along with a detailed usage guide to maximize its performance.

Product Overview

The B82721K2102U030 is a high-quality common mode choke manufactured by EPCOS, a brand of TDK Corporation. It is designed to mitigate electromagnetic interference (EMI) in electrical systems. This component is highly regarded for its reliability and effectiveness in filtering out unwanted noise, making it an essential part of many electronic devices.

Features and Advantages

The key features and advantages of the B82721K2102U030 include:

  • High Attenuation: Provides excellent suppression of common mode noise.

  • Compact Size: Its small footprint makes it suitable for space-constrained applications.

  • Wide Frequency Range: Effective over a broad range of frequencies, ensuring versatility.

  • Reliability: Built with high-quality materials for long-term durability.

  • Compliance: Meets international standards for EMI suppression components.

Functions and Performance

The primary function of the B82721K2102U030 is to filter out electromagnetic interference, which can cause malfunctions in electronic circuits. It achieves this by providing high impedance to common mode signals while allowing the desired differential mode signals to pass through. The component's performance is characterized by its ability to handle high current loads and maintain efficiency across a wide frequency spectrum.

Application Areas

This common mode choke is widely used in various applications, including:

  • Power Supplies: To reduce EMI in switching power supplies.

  • Telecommunications: Ensuring signal integrity in communication devices.

  • Consumer Electronics: Used in TVs, computers, and other household electronics to prevent noise interference.

  • Industrial Equipment: Enhancing the reliability of industrial control systems.

  • Automotive Systems: Applied in automotive electronics to ensure stable operation.

Usage Guide

To effectively use the B82721K2102U030, follow these guidelines:

  • Proper Placement: Install the choke as close to the noise source as possible to maximize its effectiveness.

  • Correct Orientation: Ensure the component is oriented correctly according to the circuit design specifications.

  • Secure Mounting: Use appropriate mounting techniques to secure the choke and prevent mechanical stress.

  • Temperature Considerations: Verify that the operating temperature range of the environment does not exceed the component’s specified limits.

  • Regular Testing: Perform regular testing to ensure the choke maintains its filtering properties over time.


The B82721K2102U030 by EPCOS (TDK) is a versatile and reliable common mode choke that plays a critical role in mitigating electromagnetic interference in various electronic applications. Its high performance, compact size, and compliance with international standards make it a valuable component for engineers and designers seeking to enhance the EMI suppression capabilities of their systems.

10 Jul, 2024
Author : Origin Data Team