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Tuesday, May 5, 2015

CalRamic HV Ceramic Capacitor Educational Series 109-6

Testing / Screening Requirements

Ceramic capacitors are considered to be highly reliable, effective components, which offer a number of advantages compared to other capacitor technologies and as such are often employed in a wide variety of extremely demanding applications. That said, like all manufacturing environments, there tends to be a certain amount of variation inherent to the process that will result in differences in the performance characteristics of each device. In truth, even though a lot of capacitors may have been manufactured at precisely the same time, using the same batch of material, tooling and equipment, no two capacitors within that lot are “exactly” the same. Fortunately their differences tend to be inconsequential and certainly well within the acceptable limits of the system or application for which they are intended.

So if manufacturing operations for ceramic capacitors tend to produce highly consistent results, why test at all? There are in fact several reasons, not the least of which would be to ensure that the theoretical design meets customer expectations. In addition, it is important to ensure that some unintended process variable has not inadvertently been introduced to the system, which could alter the anticipated result. Testing also provides confirmation that the materials used to manufacture the capacitor are within specification and that the equipment will operate properly.

The complete application note can be read at:

The entire series can be viewed on our web site at

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