High Voltage MLCCs Arc-Over Prevention

Posted by Kemet Electronic Corporation
On December 17, 2020
0

In applications in which energy conservation is critical, such as wind or solar inverters or electric-vehicle (EV) powertrains, distributing power at high voltage can help to reduce I2R losses. The DC link supplying the inverter can be 3 V to 400 V in an EV application, for example, or even higher for wind or solar-power conditioning. However, high operating voltages like these bring additional safety challenges not only for end users but also for components — even those with a suitable voltage rating stamped on the case.

ACTIVES, EEE Components, INSPECTION, ELECTRICAL & VERIFICATION, TESTING

How to determine and measure MLCC ripple current and ESR

Posted by doEEEt Media Group
On December 16, 2020
0

The video shows how Kemet’s KC-LINK capacitors are tested for ripple current rating and ESR. These surface mount capacitors are designed to meet the growing demand for fast-switching wide bandgap (WBG) semiconductors that operate at higher voltages, temperatures, and frequencies.

EEE Components, PASSIVES

Replacing MLCCs with polymer capacitors

Posted by doEEEt Media Group
On December 7, 2020
0

With the continuing supply shortage for multi-layer ceramic capacitors (MLCCs), designers are being forced to consider alternatives. In this article, we will look at the factors to be considered if you’re thinking about using polymer capacitors as a replacement. There has been a supply shortage of MLCCs since the end of 2016 and there are no signs of immediate improvement.

EEE Components, PASSIVES

High CV MLCC DC BIAS and AGEING Capacitance Loss

Posted by Tomáš Zedníček
On December 3, 2020
0

MLCC capacitors are dominating today’s capacitor market enabling high grade of electronics miniaturization. The continuous downsizing and use of higher and higher dielectric constant materials for MLCC class II capacitors have however resulted in worsening of some electrical parameters stability such as capacitance drop at operating conditions. Thus, in consequence, what can be considered as an enabling technology for consumer and wearable applications may pose some risk if used in critical applications such as automotive, safety, medical or industrial sector, that are also in need for continuous miniaturization.

EEE Components, PASSIVES

What Makes MLCC Dielectrics Different?

Posted by Kemet Electronic Corporation
On December 2, 2020
0

Kemet Webinar

Ceramic capacitors are usually described with a 3-character designation like X7R, X5R, and C0G, but what do those designations that mean? There’s a lot behind the scenes of this simple combination of letters and number when it comes to temperature.

In this webinar, KEMET’s Wilmer Companioni (Senior Technical Marketing Manager) takes you...

ACTIVES, EEE Components

Empower Announces E-CAP™

Posted by doEEEt Media Group
On December 2, 2020
0

Highest performance, most configurable, and smallest commercially available range of capacitors. E-CAP™ is a vastly superior performing capacitor, far exceeding the semiconductor industry’s previously leading Multi-Layer Ceramic Capacitors (MLCC).

ALTER Projects, EEE Components, PASSIVES

DC and AC Bias Dependence of MLCC Capacitors

Posted by doEEEt Media Group
On November 24, 2020
0

Measured data collected during the study showed that the bias dependence for the same nominal part from different vendors can be very different. Moreover it was shown that bias sensitivity of X7R parts is not necessarily better than that of X5R parts, sometimes not even from the same vendor.

EEE Components, PASSIVES

Considerations to AC Rate MLCCs for Power Applications

Posted by Kemet Electronic Corporation
On November 12, 2020
0

Kemet Webinar

Designing for AC presents even more complexities and challenges compared to designing for DC. One of those challenges is choosing which components to use for AC applications to ensure a successful design.

In this webinar, KEMET’s Hernando Amezquita (Technical Product Specialist) of the Ceramics team addresses the challenges of designing for AC...

EEE Components, PASSIVES

Ultra-thin Reverse Geometry Low ESL MLCCs for In-Vehicle ADAS Applications

Posted by doEEEt Media Group
On November 12, 2020
0

Murata introduces the ultra-thin LW reversed, low equivalent series inductor (ESL) multilayer ceramic capacitor (MLCC) with a capacitance value of 1.0 µF ±20% for 4 Vdc-rated automotive applications.

EEE Components, PASSIVES

Low-ESR tantalum capacitors make a difference in circuit designs

Posted by doEEEt Media Group
On November 7, 2020
0

Low-ESR tantalum capacitors can improve circuit power efficiency, reduce heat generation for the circuit, and increase low-term reliability

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