Failure Mechanism of Metallized Film Capacitors under DC Field Superimposed AC Harmonic

Posted by doEEEt Media Group
On September 5, 2024
0

Researchers investigated the failure mechanisms of metallized film capacitors (MFCs) under DC/AC-superimposed conditions in HVDC systems. They found that capacitors aged under DC/AC fields experienced shorter lifespans, faster capacitance decay, and greater material degradation than those aged solely under DC fields due to electrode loss and molecular structure damage.

EEE Components, PASSIVES

Film Capacitor Technologies and Applications 2024

Posted by doEEEt Media Group
On September 5, 2024
0

Dennis Zogbi's article on TTI Market Eye analyzes AC and DC film capacitors, their technologies, and applications. It highlights key trends in renewable energy and industrial uses.

EEE Components, PASSIVES

Researchers Developed Flexible 2D Nanofiller Based Polymer Dielectric for High Energy Capacitors

Posted by doEEEt Media Group
On July 30, 2024
0

Dielectric capacitors are critical components in electronics and energy storage devices. The polymer-based dielectric capacitors have the advantages of device flexibility, fast charge–discharge rates, low loss, and graceful failure.

EEE Components, PASSIVES

Capacitor for Coupling and Decoupling Applications

Posted by doEEEt Media Group
On June 26, 2024
0

Capacitors are fundamental components in both analog and digital electronic circuits. These passive components play an important role in influencing the operational behavior of circuits. The characteristics of a capacitor vary mainly depending on the dielectric material used. The dielectric material determines the capacitance value, energy efficiency, and size of a capacitor. Fixed value capacitors can be broadly categorized into two: polar and non-polar capacitors. Non-polar capacitors include ceramic, film, and paper capacitors.

EEE Components, PASSIVES

Failure Analysis of Capacitors and Inductors

Posted by doEEEt Media Group
On October 19, 2023
0

The goal of passive components’ failure analysis (FA) is to determine the root cause for an electrical failure. The findings can be used by the manufacturers to improve upon the design, materials, and processes used to create their components. This leads to better quality and higher reliability components. The FA also provides feedback for the users to improve their handling, storage, and applications of these components.

EEE Components, PASSIVES, SPECIFICATIONS / QPLs

ESCC QUALIFIED PART LIST (QPL) Issue 239 (June 2023) Updates

Posted by Emilio Cano García
On August 31, 2023
0

Stay up to date with the latest release of ESCC QUALIFIED PART LIST (QPL) in Issue 239, dated June 2023. Discover amendments encompassed within DCR 1587, meticulously detailed in this post

EEE Components, PASSIVES

Double Stage 3 Phase Mains Filter

Posted by doEEEt Media Group
On December 28, 2022
0

The double-stage filter family is therefore also appropriate for applications with particularly high EMC emissions, as is frequently encountered in industry. Typical applications include machines and systems for automatic production, motor drives and industrial plant machinery. These powerful filters are also the first choice for modern frequency inverters for motor control.

EEE Components, PASSIVES

What is a Capacitor?

Posted by doEEEt Media Group
On December 14, 2022
0

A capacitor is made from electrical conductive electrodes separated by an insulator. The insulating layer is called a dielectric. Although all capacitors share the same basic principle components, the material choice, configurations, and features can vary widely.

EEE Components, PASSIVES

TDK Releases Low Self-Inductance DC Link Film Capacitors

Posted by doEEEt Media Group
On October 14, 2022
0

The capacitors are rated for voltages from 500 V DC to 1600 V DC, offer capacitance values from 0.47 µF to 170 µF and are suitable for a maximum operating temperature of up to 105 °C. At a rated voltage and operating temperature of 70 °C, the typical life of the rugged, self-healing and RoHS-compliant capacitors is 95,000 hours.

EEE Components, PASSIVES

A Quick Guide to Safety Capacitors

Posted by doEEEt Media Group
On September 7, 2022
0

X-class capacitors are used across the line where failure would not lead to an electrical shock. X-class capacitors are divided into sub-classes and Y-class capacitors are used in “line-to-ground” applications where failure could lead to an electrical shock. It is also divided into sub-classes by their AC voltage and peak surge voltage ratings.

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