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

Measuring, Modeling, Simulating Capacitors and Inductors

Posted by doEEEt Media Group
On June 22, 2020
0

Power supply switching ripple and control loop phase margin are dominated by the output inductor and the bulk capacitors.

Simple RLC capacitor and inductor models can result in a design with more capacitors than necessary adding to the design cost, consuming valuable circuit board real estate and degrading the control loop performance.

Most capacitor datasheets...

PHYSICAL, MECHANICAL & ASSEMBLY, TESTING, WEBINAR

Scanning Acoustic Microscopy – Webinar

Posted by doEEEt Media Group
On June 17, 2020
2

This webinar provides a brief overview of Scanning Acoustic Microscopy and the inspection of EEE parts. Thus, you will acquire, in a friendly way, the knowledge to interpret SAM images and to conceive basic SAM inspections. The webinar is mainly focused on the plastic encapsulated systems. In addition, we will also show other interesting application examples.

C-SAM - Short Technical Notes, EEE Components, INSPECTION, ELECTRICAL & VERIFICATION, PASSIVES, TESTING

Scanning Acoustic Microscopy (C-SAM) of in Stacked Capacitors

Posted by Francisco Javier Aparicio Rebollo
On June 12, 2020
0

Scanning Acoustic Microscopy (C-SAM) inspection has been used for the comprehensive inspection of the lead-frame in a horizontally stacked capacitor. This non-destructive inspection reveals minor anomalies at the interface with capacitor terminals which may impair the electrical response.

EEE Components, PASSIVES

Passive Components Raw Material Supply Chain Review

Posted by doEEEt Media Group
On June 8, 2020
0

Passive electronic components are raw-materials intensive. The materials consumed mass production of surface mount passive components usually come in the form of engineered powders and pastes, which make up the largest “variable cost” associated with producing capacitors and resistors.

EEE Components, PASSIVES

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

MLCC Shortages and Why They Might Last Longer than Expected

Posted by doEEEt Media Group
On June 7, 2020
0

High capacitance base metal electrode multilayered ceramic chip capacitors (MLCC) has been the focal point of electrostatic capacitor technology for more than 25 years. The stacking of advanced dielectric materials and nickel electrode powders in the finished MLCC creates a component with an extremely high capacitance that extends the product offering well into the higher priced electrolytic range.

EEE Components, PASSIVES

Limited Capacity To Stack Ceramic Dielectric Extend MLCC Shortages

Posted by doEEEt Media Group
On June 7, 2020
0

Limited capacity expansion in the MLCC industry, specifically the ability to stack ceramic layers (limited capex in three-dimensional stacking capacity for barium titanate dielectric composition and nickel electrode paste) will extend shortages of MLCC to 2020 and beyond.

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.

EEE Components, PASSIVES

Solid and polymer tantalum capacitors vs. SMT MLCCs

Posted by doEEEt Media Group
On June 6, 2020
0

There are two primary capacitor technologies that are most often considered for surface-mount applications: electrostatic and electrolytic. The most common electrostatic types are MLCCs and film capacitors. Due to current bottlenecks in the procurement of surface-mount ceramic capacitors, however, designers are looking for substitutes to keep their production lines running smoothly, and to find long term replacements for hard to find ratings.

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