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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.
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EEE Components, PASSIVES

Supercapacitors

  • Posted by doEEEt Media Group
  • On December 14, 2022
  • 0
Supercapacitors (or ultracapacitors) are one of the most progressing capacitor technologies in recent years, offering very high DC capacitance and high energy densities. It is proven its reliable and design flexibility to provide a wide range of energy storage solutions from small wearables, industrial applications, and automotive to large energy power network backup systems.
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EEE Components, PASSIVES

TDK Releases Low Self-Inductance DC Link Film Capacitors

  • Posted by doEEEt Media Group
  • On October 14, 2022
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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.
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EEE Components, PASSIVES

Dielectric Constant and its Effects on the Properties of a Capacitor

  • Posted by doEEEt Media Group
  • On September 12, 2022
  • 0
A dielectric material is used to separate the conductive plates of a capacitor. This insulating material significantly determines the properties of a component. The dielectric constant of a material determines the amount of energy a capacitor can store when voltage is applied. A dielectric material becomes polarized when it is exposed to an electric field. When polarization occurs, the effective electric field is reduced.
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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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EEE Components, PASSIVES

MLCC and Ceramic Capacitors

  • Posted by doEEEt Media Group
  • On September 7, 2022
  • 0
Ceramic dielectric electrostatic capacitors are dominating the capacitor market in a number of fields: Largest volume capacitor technology (by far) Largest value capacitor technology Smallest dimension discrete components among all passives High flexibility of design to meet specific requirements such as low ESL / high-frequency operation Strong presence in both low voltage, low power and high voltage, high power applications despite all the above benefits, the technology has some limitations that must be understood for the corr
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EEE Components, PASSIVES

New AC Filtering Film Capacitors Deliver Extremely Stable Capacitance

  • Posted by doEEEt Media Group
  • On August 12, 2022
  • 0
Vishay Intertechnology introduces a new series of metalized polypropylene AC filtering film capacitors optimized for high humidity environments. Vishay Roederstein MKP1847C AC Filtering devices withstand demanding temperature humidity bias (THB) testing —40C, 93 % relative humidity for 56 days at rated voltage —without altering their electrical characteristics.
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EEE Components, PASSIVES

Optimizing Decoupling Capacitors

  • Posted by doEEEt Media Group
  • On June 24, 2022
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Learn how to optimize decoupling capacitors for the best cost vs. performance using flat target impedance design methods.

Impedance peaks caused by parallel L-C resonances in the power distribution network (PDN) are potential sources of power rail ripple and increased EMI. Bulk capacitors must be selected to ensure power supply stability while high-frequency decoupling must ensure...

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EEE Components, PASSIVES

Decoding The DC-Link

  • Posted by Kemet Electronic Corporation
  • On June 8, 2022
  • 0

KEMET Webinar

DC-Link capacitors are often used but somewhat poorly understood components of AC systems and inverters. In this webinar, Pranjal Srivastava, Field Applications Engineer at KEMET, explores the function, options, and selections of DC-Link capacitors for inverters and other power devices.

Source: Kemet

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