Film Capacitors Characteristics and Uses in Power Applications

Posted by doEEEt Media Group
On November 1, 2020
0

Film capacitors in power electronics find a wealth of applications and excel when high ripple current ratings are required or when the environment imposes over-voltage stress

EEE Components, PASSIVES

Solid Sintered Tantalums with MnO2 and Polymer Electrolytes

Posted by doEEEt Media Group
On October 24, 2020
0

The tantalum metal has a dielectric constant of approximately 27. The price for solid tantalums is relatively high due to mainly the high cost of the tantalum powder. The solid electrolyte theoretically has no limitations in operation and storage time.

EEE Components, PASSIVES

The self-healing characteristics of film capacitors

Posted by doEEEt Media Group
On August 8, 2020
0

Metallized film capacitors have good self-healing characteristics being more reliable and offering a longer operational life

EEE Components, PASSIVES

Solid Aluminum Electrolytics with Conductive Polymer or TCNQ Salt

Posted by doEEEt Media Group
On June 25, 2020
0

Another variant of a solid electrolyte is conductive polymer electrolyte. The aluminum oxide on an etched and formed foil is covered with an electrically very conductive and doped polymer

EEE Components, PASSIVES

Solid Aluminum Electrolytics with Manganese Dioxide (obsolete)

Posted by doEEEt Media Group
On June 25, 2019
0

The SAL are aluminum electrolytic capacitors with anodic oxidized aluminum oxide as dielectric and with the semiconducting solid manganese dioxide as electrolyte (eased production Ss of December 31, 2015)

EEE Components, PASSIVES

Pulse grade capacitors need self-healing dielectrics

Posted by doEEEt Media Group
On May 30, 2019
0

Lasers nowadays are one fabrication tool among many for industrial production, measuring and testing applications. Industrial lasers commonly employ a pulse grade capacitor to generate and deliver the energy required to test, measure or make the product or service on offer. In this article, we examine the importance of the self-healing characteristics of metallized film dielectrics used in pulse grade capacitors for industrial laser applications.

ABC of CLR, EEE Components, PASSIVES

Electrostatic Capacitors Constructional Solutions

Posted by Tomáš Zedníček
On February 27, 2019
0

Capacitors can be divided into two main groups: 1) electrostatic, non-polarized and 2) polarized capacitors. Polarized capacitors can be then divided into electrolytic and supercapacitors. See the following chart with more details. The latter is by their construction polarity dependent with one plus terminal and one minus. The electrostatics don’t have this polarity dependence in their dielectric which therefore can be subjected also to alternating voltages.