[Information] Basic Knowledge of Capacitor Characteristics: Capacitance Edition

Understanding the characteristics correctly will also lead to safe usage!

最終更新日 Jun 15, 2023

[Information] Basic Knowledge of Capacitor Characteristics - Impedance Edition

A physical quantity that represents the ability of an electric circuit to carry alternating current! Parameters that represent alternating current characteristics.

最終更新日 Jun 15, 2023

[Explanation of the Causes of Capacitor Failure] A Case Where Sound Came from a Film Capacitor

If the sound level exceeds the acceptable range, please use the "soundproofing product" with a short body type!

最終更新日 Jun 06, 2023

[Explanation of the Causes of Capacitor Failure] A resin-coated capacitor ignited.

When applying an overcoat, please select the resin considering the thermal expansion coefficient of the substrate!

最終更新日 Jun 06, 2023

[Explanation of the Cause of Capacitor Failure] Capacity loss occurred, and then it became open.

As a countermeasure, please ensure that the actual current applied is below the allowable value!

最終更新日 Jun 06, 2023

[Explanation of the Causes of Capacitor Failure] Failure of a DC Capacitor in an AC Circuit

The rated voltage is set with a margin, taking into account factors such as AC frequency, voltage waveform, voltage fluctuations, and operating temperature!

最終更新日 Jun 06, 2023

[Explanation of the Cause of Capacitor Failure] Electrolytic capacitors connected in series are shorted.

Increase the rated voltage of the capacitor to reduce the difference in leakage current, and also review the voltage divider resistance value!

最終更新日 Jun 06, 2023

[Explanation of the Cause of Capacitor Failure] An electrolytic capacitor installed horizontally has burst.

A structure that eliminates the filler material and fixes the element with ribs has been adopted! The installation method has been changed to be at the "12 o'clock position"!

最終更新日 Jun 06, 2023

[Explanation of the Cause of Capacitor Failure] The aluminum electrolytic capacitor sparked.

As a precaution, please discharge the accumulated charge before handling the capacitor!

最終更新日 Jun 06, 2023

[Explanation of the Causes of Capacitor Failure] A case where characteristics deteriorated after long-term storage.

Please store the capacitors at a temperature between +5°C and +35°C, with a relative humidity of 75% or lower!

最終更新日 Jun 06, 2023

[Explanation of the Causes of Capacitor Failure] The characteristics of electrolytic capacitors deteriorate at low temperatures.

The cause is the deterioration of the transient response performance of the output voltage, resulting in the inability to obtain the specified voltage! Here are some countermeasures.

最終更新日 Jun 06, 2023

Explanation of the cause of capacitor failure: Coated capacitor has failed.

The measure is to not coat the entire circumference of the capacitor with a coating agent or resin!

最終更新日 Jun 06, 2023

Explanation of the cause of capacitor failure: One of the capacitors connected in parallel has failed.

Revised the installation layout of the capacitor and changed the cooling method to reduce the effects of radiant heat!

最終更新日 Jun 06, 2023

[Explanation of the cause of capacitor failure] The pressure valve does not operate, and steam is ejected from the grounding surface.

Review the requirements for the pressure valve to operate and the regulations for ensuring safety, and secure the necessary space!

最終更新日 Jun 06, 2023

[Explanation of the Causes of Capacitor Failure] Capacitor capacity reduction in the charge and discharge circuit.

As a countermeasure, please use capacitors that are compatible with the charging and discharging circuit!

最終更新日 Jun 06, 2023

[Explanation of the cause of capacitor failure] It failed due to excessive ripple, and the electrolyte was ejected.

Please choose a capacitor considering the allowable ripple current, temperature, and frequency corrections!

最終更新日 Jun 06, 2023

Comprehensive Capacitor Catalog for the Power Electronics Industry

A wide variety of aluminum electrolytic capacitors and plastic film capacitors are featured!

最終更新日 Feb 06, 2024

[Explanation of the Causes of Capacitor Failure] A case where a short circuit occurred due to overvoltage and smoke was emitted.

Please ensure that you thoroughly check the voltage fluctuations and choose a capacitor that meets the conditions!

最終更新日 Jun 06, 2023

[Useful Materials Provided] A Thorough Explanation of the Basics and Usage of Electric Double Layer Capacitors

Sustainable and clean! An explanation of the basics of electric double-layer capacitors.

最終更新日 Jun 06, 2023

A Must-Read Guide for Circuit Designers: 15 Examples of Causes and Countermeasures for Capacitor Failures

Illustrating the issues of capacitor failures that help improve product reliability!

最終更新日 Feb 10, 2023

Handbook Giveaway! '15 Case Studies on Causes and Countermeasures for Capacitor Failures'

We are offering a handbook that explains 15 cases of phenomena, causes, and countermeasures related to capacitor failures, complete with illustrations!

最終更新日 Feb 07, 2023

Causes and Countermeasures for Capacitor Failure: What to Look For

To use the capacitor properly! We will introduce examples of failure phenomena, causes, and countermeasures.

最終更新日 Jan 11, 2023

Causes and Countermeasures for Capacitor Failure: Open Failure

The main causes of open failure are mainly disconnection and significant increase in resistance! Introducing how capacitors fail.

最終更新日 Jan 11, 2023

Causes and Countermeasures for Capacitor Failure: Short Circuit Failure

Explanation of failure modes and factors! There is also a risk of ignition due to reactions with oxygen in the air.

最終更新日 Jan 11, 2023

Causes and Countermeasures for Failure of Data Capacitors: Aluminum Electrolytic Capacitors

Failures occur due to rapid chemical reactions that are greatly influenced by environmental factors such as temperature and atmosphere!

最終更新日 Jan 11, 2023

Causes and Countermeasures for Capacitor Failures: Basic Knowledge of Capacitors

Aluminum electrolytic capacitors can be used in a wide range of DC circuits! Here is an introduction to the basics of capacitors.

最終更新日 Jan 11, 2023

Introduction to Capacitors: What You Can't Ask About Capacitors Now

Both capacitors and capacitors are electronic components that can physically store electric charge!

最終更新日 Jan 11, 2023

Introduction to Capacitors: How Capacitors Work

Compact, high-capacity, high-voltage, and long-lasting! Capacitors have a simple yet very important role.

最終更新日 Jan 11, 2023