Tantalum polymer to MLCC Replacement Guidelines

Posted by doEEEt Media Group
On June 7, 2020
0

Let’s all get to the same baseline. KO-CAP is KEMET’s tantalum-based polymer electrolytic capacitor. Like any other tantalum capacitor, it is a slug of sintered tantalum powder that has a tantalum pentoxide layer grown on it, with a layer of conductive polymer acting as the cathode. This conductive polymer gives the capacitor much lower ESR than “traditional” tantalum capacitors. That’s all I have to say about that.

EEE Components, PASSIVES

Tantalum/NbO to MLCC Class 2 Replacement Guidelines

Posted by doEEEt Media Group
On June 7, 2020
0

MLCC capacitor market is currently going through a tough supply time period. MLCC manufacturers are leaving their low margin, high volume, consumer segment and concentrating on supply of higher added value parts. This is resulting in a considerable MLCC shortage that may take several years to be resolved.

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Researches Combine Principles of Battery and Capacitors in Novel Solid State Battery

Posted by doEEEt Media Group
On May 27, 2020
0

These batteries can be used in extremely low-frequency communications and in devices such as blinking lights, electronic beepers, voltage-controlled oscillators, inverters, switching power supplies, digital converters and function generators, and eventually for technologies related to modern computers.

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Best Ceramic Technologies for High Power Density Applications?

Posted by Kemet Electronic Corporation
On May 14, 2020
0

Capacitors are increasingly being recognized for having the potential to improve efficiency and power density. Read about ceramic technology guidelines for high power density circuits.

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TDK Introduces Special Capacitor Dielectric for SiC and GaN DC Link

Posted by doEEEt Media Group
On April 27, 2020
0

Power transistors based on gallium nitride and silicon carbide impose very high demands on DC link capacitors. TDK has now developed a dielectric that allows such film capacitors to be used up to +125 °C instead of +105 °C while optimizing its winding structure.

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Open Letter to AEC-Q200 Committee on MLCC DC BIAS Ageing

Posted by doEEEt Media Group
On November 19, 2019
0

Over the past years, multi-layer ceramic capacitors have undergone significant improvements. The volumetric density has increased several folds. This unfortunately resulted in a big increase in DC and AC bias sensitivity for many parts.

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

High CV MLCC DC BIAS and AGEING Capacitance Loss Explained

Posted by doEEEt Media Group
On November 19, 2019
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 has however resulted in worsening of some electrical parameters stability such as capacitance drop at operating conditions.

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Tantalum Capacitors in Space Applications

Posted by Kemet Electronic Corporation
On September 18, 2019
0

Only tantalum capacitors with established reliability are recommended for the space application. Commercial parts can vary materials and processes, increasing risk of failure in space application.

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Radiation Characterisation for New Tantalum Polymer Capacitors

Posted by doEEEt Media Group
On June 14, 2019
0

Polymer tantalum capacitor technology was developed in response to demands from the market to lower the ESR of tantalum capacitors while preserving their small case size and high reliability. The technology is promising in several aspects. The higher quality interface between the dielectric and the polymer cathode increases the breakdown voltage of the device, as well as reducing its DC leakage current, even at extreme radiation exposure conditions.

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

AVX CDR11 to 14 with BG Dielectric no longer offered

Posted by José Francisco Largaespada
On June 14, 2019
0

AVX will cease to manufacture MIL-PRF-55681/4 styles CDR11, CDR12, CDR13, and CDR14 with the BG dielectric. (90 ± 20ppm). AVX will continue to support same styles with BP dielectric (0±30ppm).

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