2nd PCNS Passive Components Networking Symposium held in Bucharest, Romania on September 10-13th, 2019 was a great opportunity to meet passive components professionals and discuss with them hot topics, technical challenges, market trends, material supplies etc. related to passive components. PCNS symposium was attended by 63 participants from 13 European countries, USA and China and posed an ideal networking possibilities for designers, purchasers, application...

elektroniknet.de published an interview with Tomas Zednicek, EPCI president during the 4th Passive Components Users Forum in July 2019. During the 4th Passive Components Users Forum, held in Munich 2-3rd July 2019, Ralf Higgelke, Technical Editor with DESIGN & ELEKTRONIK spoke in short interview with Tomas Zednicek from the EPCI European Passive Components Institute on the trends in capacitors.

C5. Variable Capacitors Variable capacitors are used for trimming and tuning purposes. They represent a small but important part of the capacitor assortment. C 5.1. GENERAL DESCRIPTION By means of an electrode system consisting of one fixed and one movable part – stator and rotor – the capacitance can be varied between a minimum and a maximum value, the so called capacitance swing. The...

C 4.4. The time constant, t The time constant of electrostatic capacitors is defined in section C1.2.2 as the time needed to discharge a loaded capacitor through the insulation resistance (IR) to 1/e (~37%) of the initial voltage. This constant denominated t(tau) is the product of IR and C (capacitance), usually abbreviated RC.  As already mentioned, supercapacitors don’t have any dielectric even if the...

C 4.0 SUPERCAPACITORS C 4.1. Introduction and Basic Function Supercapacitors (or ultracapacitors) are the fastest growing capacitor technology on the market offering very high DC capacitance and high energy densities. Sometimes all supercapacitors are mis-called as EDLC (Electric Double Layer Capacitors), but as we will explain shortly, EDLC is large, but only one part of supercapacitor family. Supercapacitors features sit between capacitors and batteries,...