Latest Passives Articles and Videos

When designing amplifier circuits, it can be a challenge to avoid an overvoltage event at the amplifier. Learn the…

When designing amplifier circuits, it can be a challenge to avoid an overvoltage event at the amplifier. Learn the multiple options you have for preventing damage and when an overvoltage event occurs.

In this article, we analyze the operation of the Class E amplifier and examine the underlying assumptions of its design equations.

In this article, we analyze the operation of the Class E amplifier and examine the underlying assumptions of its design equations.

Bourns’ new products meet next-gen needs for signal transmission, high-current sensing, and surge protection.

Bourns’ new products meet next-gen needs for signal transmission, high-current sensing, and surge protection.

Class E RF amplifiers are designed to produce switch waveforms with a specific set of characteristics. In this article,…

Class E RF amplifiers are designed to produce switch waveforms with a specific set of characteristics. In this article, we discuss the advantages and limitations of these waveforms.

Learn how Class E amplifiers improve on the efficiency of Class D amplifiers at RF frequencies.

Learn how Class E amplifiers improve on the efficiency of Class D amplifiers at RF frequencies.

For this project, I built a handheld resistor color code calculator and ohmmeter using the ATmega328 microcontroller and…

For this project, I built a handheld resistor color code calculator and ohmmeter using the ATmega328 microcontroller and a 1.8-inch color LCD display.

In this Radio Shack Classic Circuits Remix, we add modern microcontroller functionality to the vintage Electronic Timer…

In this Radio Shack Classic Circuits Remix, we add modern microcontroller functionality to the vintage Electronic Timer project for the Science Fair 65-in-1 kit.

Knowles' Cornell Dubilier QAS Arc Suppressor/Snubber Network Film Capacitors are designed to extend the lifespan of…

Knowles' Cornell Dubilier QAS Arc Suppressor/Snubber Network Film Capacitors are designed to extend the lifespan of electronic and electromechanical devices by reducing electrical arcing, noise, and electromagnetic interference (EMI). Watch and learn all about their features, specs, applications, and more!

The new high-current chokes use a novel alloy powder core material with superior saturation properties to push the…

The new high-current chokes use a novel alloy powder core material with superior saturation properties to push the boundaries of current density.

Overswing can occur when Zener diodes are pushed to their limits. Learn about why this happens and the problems it…

Overswing can occur when Zener diodes are pushed to their limits. Learn about why this happens and the problems it causes—and how to overcome the issue.

In this article, we'll learn about two important non-idealities of Class D power amplifiers and how they affect performance.

In this article, we'll learn about two important non-idealities of Class D power amplifiers and how they affect performance.

MEMS technologist Nanusens is putting its RF digitally tunable capacitors (DTCs) to new use in RF front ends to help 5G…

MEMS technologist Nanusens is putting its RF digitally tunable capacitors (DTCs) to new use in RF front ends to help 5G and 6G take off.

In this article, we explore the advantages of introducing an air gap to the magnetic core of an inductor.

In this article, we explore the advantages of introducing an air gap to the magnetic core of an inductor.

Core saturation is one of the main limitations on the design of magnetic components. In this article, we explore how…

Core saturation is one of the main limitations on the design of magnetic components. In this article, we explore how different factors—particularly the number of turns—impact the core saturation of an inductor.

In this article, we learn about core saturation and why it should be avoided in most applications. We then examine how…

In this article, we learn about core saturation and why it should be avoided in most applications. We then examine how different ways of defining permeability can help us predict the saturation flux density of a magnetic core.

Knowles' Voltronics brand J Series Ceramic Chip Trimmer Capacitors are designed for high performance and stability over…

Knowles' Voltronics brand J Series Ceramic Chip Trimmer Capacitors are designed for high performance and stability over time, with minimal capacitance drift. Watch and learn all about their features, specs, applications, and more!

Eddy currents are a major loss mechanism in transformer cores. This article provides both in-depth and simplified…

Eddy currents are a major loss mechanism in transformer cores. This article provides both in-depth and simplified explanations of how core laminations work to mitigate the effects of eddy currents.

The hysteresis effect is one of the main sources of loss in ferromagnetic materials. In this article, we learn to…

The hysteresis effect is one of the main sources of loss in ferromagnetic materials. In this article, we learn to calculate the hysteresis loss of a magnetic core and work through some example problems.

In this article, we use the concept of magnetic field energy to explore the relationship between a core's hysteresis loss…

In this article, we use the concept of magnetic field energy to explore the relationship between a core's hysteresis loss and its B-H curve.