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Passives Technical Articles
Test & Measurement
What Is a Low Pass Filter? A Tutorial on the Basics of Passive RC Filters
What is filtering? Learn what resistor-capacitor (RC) low-pass filters are and where you can use them.
May 12, 2019
Safety Capacitors First: Class-X and Class-Y Capacitors
Learn about Class-X and Class-Y capacitors, where they are used, and why they are referred to as "safety" capacitors.
May 06, 2019
Electrical Symbols for Electronic Components: Passive Components
This two-article series provides an overview of circuit symbols, along with some information on the components that they represent.
October 31, 2018
What Is Mutual Inductance? A Guide for Circuit Designers
Learn about mutual inductance and how it can influence an engineer’s approach to circuit and system design.
July 06, 2018
The Many Types of Fuses: Axial, Cartridge, Surface Mount, PTC…
This article provides an overview of the various fuse options that are available to designers of low-voltage circuits.
April 25, 2018
How Does a Fuse Work? Understanding the Details of Fuse Operation and Implementation
This article provides an overview of some subtle yet important aspects of fuse functionality and design.
April 23, 2018
X7R, X5R, C0G…: A Concise Guide to Ceramic Capacitor Types
This technical brief attempts to dispel some of the fog that surrounds the three-character cryptograms used to describe ceramic caps.
March 30, 2018
What Exactly Is a Quartz Crystal, Anyways? A Look at Quartz Crystal Oscillators
This article explains some theory behind an extremely common electronic component.
March 02, 2018
Separating Signal from Power: New Automotive Inductors from TDK
Inductors such as the ADL3225V devices are useful when you want to use just one conductor to transfer both signal and power.
May 10, 2017
Less EMI, More Available Board Space: A New Passive Filter from TDK
Why install three components when you could use one instead? You can simplify your layout with single-component passive filters, such as the MEM1005PP251T from TDK....
April 19, 2017
Determining the Equivalent Series Resistance (ESR) of Capacitors
Learn more about the importance of capacitor ESR, how to measure it, and what factors can affect your measurements.
March 31, 2017
Understanding Current-Voltage Curves of Non-Linear Devices
This article discusses the I-V curves of passive non-linear devices such as diodes, transistors, and thyristors.
January 09, 2017
Understanding Current-Voltage Curves
This article discusses I-V curves for passive components, voltage sources, and current sources.
December 27, 2016
Analyzing Circuits via Source Transformation
This article uses examples to explain the technique of source transformation.
November 01, 2016
Inductor Out, Op-Amp In: An Introduction to Second-Order Active Filters
In this article, we’ll compare active and passive filters and look at some common second-order active topologies.
May 19, 2016
Why the Capacitor in Your Power Supply Filter is Too Big
The job of the capacitor in the output filter of a DC power supply is to maintain a constant DC value by removing as much power ripple as possible. Because these capacitors have a DC value,...
January 21, 2016
Introduction to the Transmission Line
Explanation of what a transmission line is, and the conditions under which it exists. Uses lumped element model to derive differential equations and manipulates the equations to get telegraph...
November 12, 2015
Choosing and Using Ferrite Beads
This article provides practical guidance on using ferrite beads to improve your PCB’s power quality.
October 11, 2015
Clean Power for Every IC, Part 3: Understanding Ferrite Beads
Ferrite beads used in conjunction with bypass capacitors can provide improved power-supply filtering and decoupling.
September 30, 2015
Clean Power for Every IC, Part 2: Choosing and Using Your Bypass Capacitors
Proper component selection and careful PCB layout are integral to power supply bypassing.
September 27, 2015
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