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OverviewAll product unitsProduct unitPassive ComponentsProduct groupCapacitorsProduct familySupercapacitors (EDLCs)
OverviewAll product unitsProduct unitPassive ComponentsProduct groupCapacitorsProduct familySupercapacitors (EDLCs)
Product series (2) Articles (9) More about Supercapacitors (EDLCs)

Würth Elektronik Capacitors

Big Portfolio available ex stock

Würth Elektronik has extended its capacitor portfolio. You will find an overview of our current technologies available ex stock in the graph. More details (e.g. series, characteristics, features, applications, etc.) about each product family can be found in the flyer or for example below. In our flyer you will also find information about our services.

Capacitor Portfolio Flyer

Supercapacitors

Supercapacitors, also known as EDLC for Electric Double Layer Capacitor, are energy storage devices that are easy to use and, in many ways, comparable to batteries. They close the gap between capacitors and batteries.Supercapacitors have:

  • Higher power density than batteries
  • Higher energy density than conventional capacitors

Available Series

Series WCAP-STSC

  • Mounting Style: Radial THT
  • Type: Standard Cylindrical
  • Capacitance: 3 – 50 F
  • Voltage: 2.7 V (DC)

Series WCAP-SISC

  • Mounting Style: Snap-In
  • Type: Standard Cylindrical
  • Capacitance: 100 & 350 F
  • Voltage: 2.7 V (DC)

The Supercapacitor – A Vertile Energy Storage Device and How to Use it

In the course of the presentation, important properties of Supercapacitors and key features of the design-in process will be discussed. Supercapacitors require, like any other energy storage system, a certain infrastructure in order to store and deliver their energy.

The Supercapacitor – A Versatile Energy Storage Device and How to Use it.

Example Applications

UPS systems
UPS systems
Storage device for power-offline periods
Storage device for power-offline periods
Smart metering (e.g. water meters)
Smart metering (e.g. water meters)
Solar power
Solar power
Hybrid application with battery
Hybrid application with battery

Measurements

Redexpert

With the help of REDEXPERT you will find the right capacitor based on your technical requirements. The tool supports, for example, with measured values for capacitance, impedance, ESR and dissipation factor (DF). The ability to compare individual components with each other in terms of measured values enables convenient component selection.

REDEXPERT

Webinar

Introduction to the capacitor technologies and how to use them

Capacitors make up two thirds of all electronic components and there is a huge diversity of technologies which can overwhelm young engineers. All capacitors store electrical energy in the electrical field created in a dielectric material and they are used for very diverse applications like voltage stability and filtering. How that works differs between tiny MLCCs and huge electrolytic cells, from pF ratings up to the hundreds of Farads in supercapacitors. In this presentation, we introduce different capacitor solutions taking into account the advantages and disadvantages and with a focus on the final application.

Webinar: Introduction to the capacitor technologies and how to use them

Design-in of Capacitor Module

The voltage of an electric double-layer capacitor (EDLC) depends on its charging state. Thus, the voltage at the terminals increases or decreases as soon as the EDLC becomes charged or discharged. To provide a stable voltage, the EDLC is often operated with a DC/DC conversion. Depending on the required power and charging voltage , it is required to design a module (see more: Constant Power Discharge Modul Calculator)
The EDLC module must provide the power required by the application. The EDLC Module Calculator calculates the size of the stack (module) based on the application parameter. Based on a given

- power demand,
- discharge time, and
- lower discharge limit,
the calculator provides the number of series and parallel connected EDLCs (defined by rated capacitance Cr and rated Equivalent series resistance (ESR) RESR ) as well as plots and other electrical parameters, such as total module capacitance C and total ESR R.

Application Notes, Documents and Videos about Supercapacitors

Application Note ANP109: Impedance Spectra of Different Capacitor Technologies  

Impedance and capacitance spectra are common representations of frequency dependent electrical properties of capacitors. The interpretation of such spectra provides a wide range of electrochemical, physical and technical relevant information and need to be separated from the ever-present measurement artifacts as well as parasitic effects.

Read more PDF

Application Note ANP077: Supercapacitor - A Guide for the Design-In Process  

Supercapacitors are easy to use energy storage devices and are in many aspects comparable to batteries. They can be charged by any current limited power source and drive any electrical applications.

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Application Note ANP090: Keep the Balance – Balancing of Supercapacitors  

Supercapacitors usually operate at low voltages of around 2.7 V. In order to reach higher operating voltages, it is necessary to build a cascade of serial connected SC cells.

Read more PDF

Support Note SN009: How to Use Supercapacitors? A Brief Guide to the Design-In Process  

Compared to other capacitor technologies, EDLCs are outstanding for their very high charge storage capacity and very low equivalent series resistance.

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Support Note SN012: How does a Supercapacitor age? Lifetime Model of Electric Double Layer Capacitors  

Supercapacitors show a gradual deterioration with time. Two possible approaches can be applied to anticipate the gradual loss of performance: firstly, by simply oversizing the capacitance, secondly, by adjusting the choice of specific operational parameters such as voltage and temperature.

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Supercapacitors - How Supercapacitors can Help you with Energy Storage  

In order to use supercapacitors efficiently, certain stages should be passed in the design-in process. Here we provide an short overview.

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Design-In of Supercapacitors in 4 Steps  

Supercapacitors (SC) are often used as energy storagedevices. In those cases, the early conceptual phase ofthe design-in process can be subdivided 4 steps.

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#askLorandt explains: Supercapacitors and the difference to conventional capacitors and batteries  

Compared to other capacitor technologies, Supercapacitors (EDLCs, Electric Double Layer Capacitor) are outstanding for their very high charge storage capacitance and very low equivalent series resistance (ESR). Their high cycle life, low charging time and their large power output make them the ideal choice for many electric power applications and energy storage Solutions.

Watch video

#askLorandt explains: How to use Supercapacitors in the industrial environment as best as possible  

To use Supercapacitors in an industrial environment, the voltage level need to be increased against the relatively low rated voltage (~ 2.7V) need to. By building a Supercapacitor bank this can be realized. In order to charge this bank and keep the output voltage stable, it needs some certain infrastructure. A possible construction will be shown and explained in this video.

Watch video

WE meet @ Digital Days 2021:WE backup your application; hot swappable supercapacitor backup solution  

f the power supply of the application breaks down, this is not a pleasant situation. Würth Elektronik eiSos built up a demonstration, which shows a hot swappable backup. The input voltage is 24V and the backup output voltage is 12 V for a normal industrial power rail application.

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Würth Elektronik Webinar: Keep the balance – How to balance Supercapacitors  

Supercapacitors usually operate at low voltages of around 2.7 V. In order to reach higher operating voltages, it is necessary to build a cascade of serial connected SC cells.

Watch video

Würth Elektronik Webinar: about the technology of super capacitors & how you get the best out of it  

Super Capacitors, also known as EDLC for Electric Double Layer Capacitor, are energy storage devices that are easy to use and, in many ways, comparable to batteries. However, they offer considerable advantages in terms of charging and discharging on the subject of speed.

Watch video
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