Passive Components Blog
No Result
View All Result
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • electro-mechanical news
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • inter-connect news
    • Market & Supply Chain
    • Market Insights
    • Medical
    • Modelling and Simulation
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors News
    • Resistors
    • RF & Microwave
    • Telecommunication
    • Weekly Digest

    TDK Releases Industry First 1uF 100V X7R MLCCs in 1608 Case

    YAGEO Expands One Turn Inductors for AI and High-Efficiency Power Applications

    YAGEO Extends Lifetime of its Aluminum SMD Chip Capacitors to 5500hrs at 125C/Ur

    Murata Releases Worlds First 10µF/50V Automotive MLCC in 0805 Size

    Würth Elektronik Extends High Saturation Flat-Wire Power Inductors Line

    Vishay Expands Automotive High Frequency Thin Film Chip Resistors

    Advancements and Applications of Switch Capacitor Power Converters

    KYOCERA AVX Releases Robust Vertical-Mating Battery Connectors

    Accelerating Full Bridge LLC Resonant Converter Design with Frenetic AI

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Circuit Protection Video
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Inter-Connect Video
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos

    Accelerating Full Bridge LLC Resonant Converter Design with Frenetic AI

    Understanding Switched Capacitor Converters

    Coupled Inductors Circuit Model and Examples of its Applications

    Inductor Resonances and its Impact to EMI

    Highly Reliable Flex Rigid PCBs, Würth Elektronik Webinar

    Causes of Oscillations in Flyback Converters

    How to design a 60W Flyback Transformer

    Modeling and Simulation of Leakage Inductance

    Power Inductor Considerations for AI High Power Computing – Vishay Video

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Suppliers
    • Who is Who
  • Events
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Circuit Protection Devices
    • electro-mechanical news
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • inter-connect news
    • Market & Supply Chain
    • Market Insights
    • Medical
    • Modelling and Simulation
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors News
    • Resistors
    • RF & Microwave
    • Telecommunication
    • Weekly Digest

    TDK Releases Industry First 1uF 100V X7R MLCCs in 1608 Case

    YAGEO Expands One Turn Inductors for AI and High-Efficiency Power Applications

    YAGEO Extends Lifetime of its Aluminum SMD Chip Capacitors to 5500hrs at 125C/Ur

    Murata Releases Worlds First 10µF/50V Automotive MLCC in 0805 Size

    Würth Elektronik Extends High Saturation Flat-Wire Power Inductors Line

    Vishay Expands Automotive High Frequency Thin Film Chip Resistors

    Advancements and Applications of Switch Capacitor Power Converters

    KYOCERA AVX Releases Robust Vertical-Mating Battery Connectors

    Accelerating Full Bridge LLC Resonant Converter Design with Frenetic AI

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Circuit Protection Video
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Inter-Connect Video
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos

    Accelerating Full Bridge LLC Resonant Converter Design with Frenetic AI

    Understanding Switched Capacitor Converters

    Coupled Inductors Circuit Model and Examples of its Applications

    Inductor Resonances and its Impact to EMI

    Highly Reliable Flex Rigid PCBs, Würth Elektronik Webinar

    Causes of Oscillations in Flyback Converters

    How to design a 60W Flyback Transformer

    Modeling and Simulation of Leakage Inductance

    Power Inductor Considerations for AI High Power Computing – Vishay Video

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Suppliers
    • Who is Who
  • Events
No Result
View All Result
Passive Components Blog
No Result
View All Result

Würth Elektronik Ads Max Voltage Specification of its Mold Inductors Based on New Testing Procedure

17.7.2024
Reading Time: 3 mins read
A A

Würth Elektronik has developed a new testing procedure for determining the maximum operating voltage of molded inductors.

The manufacturer of electronic and electromechanical components introduces developers to the electrical property of dielectric strength and what happens if it is exceeded in an application which is described in Application Note 126 (www.we-online.com/ANP126).

RelatedPosts

Würth Elektronik Extends High Saturation Flat-Wire Power Inductors Line

Advancements and Applications of Switch Capacitor Power Converters

Würth Elektronik Releases Long Life SMT nano and microSD Card Connectors

The molded inductors from the Power Magnetics product portfolio (e. g., WE-MAPI, WE-XHMI, WE-LHMI) are now successively supplemented with the value of the maximum operating voltage Vop as a new parameter in the specifications.

Based on the new testing procedure, Würth Elektronik defines the maximum operating voltage Vop in its data sheets. This represents the voltage at which an inductor can be operated continuously in the application without impairing performance, risking damage or overheating the inductor. The operating voltage is therefore a limit value for the input voltage, up to which the inductor can be used reliably in an application without irreversible damage.

The new product characteristic in the data sheet clearly indicates the maximum operating voltage of the inductor in the application; Image source: Würth Elektronik

The test concept examines the behavior of inductors up to their voltage limits under realistic conditions in a DC-DC full-bridge converter (voltage transients of up to 60 V/ns and frequencies of up to 2 MHz). The approximate voltage limit is firstly evaluated using a short-term test. The operating voltage is then defined on this basis and verified in a long-term test.  

Background

Thanks to steady technological advancement in the semiconductor industry, today’s MOSFETs can now achieve high current densities and short switching times. For this reason, the question of the dielectric strength of coils has become increasingly important in recent years when it comes to selecting the appropriate inductor.

What’s more: Continuous optimization of the production process and the material composition of molded inductors enable high permeability of the ferrite material to achieve the highest possible inductance values in the smallest possible package space. The power density per volume can therefore be raised continuously.

This entailed a steady increase in the proportion of iron powder or iron alloys relative to the insulation of the binder, resulting in the distance between individual grains becoming progressively smaller. If the insulation barrier between the individual metal particles is not high enough for the voltage applied in the application, a conductive path is created through the core material, caused by arcing between the individual metal particles. It may be observed in the application that the profile of the ripple current changes. Schematically, there is now a resistor parallel to the inductor.

The consequences: Self-heating of the coil rises dramatically due to the rising losses. These additional losses considerably reduce the inductor’s efficiency. The advantage of a DC/DC converter – to transmit voltage levels with high efficiency – is lost.

Source: Würth Elektronik

Recent Posts

YAGEO Expands One Turn Inductors for AI and High-Efficiency Power Applications

27.6.2025
5

YAGEO Extends Lifetime of its Aluminum SMD Chip Capacitors to 5500hrs at 125C/Ur

27.6.2025
3

Murata Releases Worlds First 10µF/50V Automotive MLCC in 0805 Size

26.6.2025
29

Würth Elektronik Extends High Saturation Flat-Wire Power Inductors Line

26.6.2025
9

Vishay Expands Automotive High Frequency Thin Film Chip Resistors

26.6.2025
12

Advancements and Applications of Switch Capacitor Power Converters

25.6.2025
22

KYOCERA AVX Releases Robust Vertical-Mating Battery Connectors

25.6.2025
8

Accelerating Full Bridge LLC Resonant Converter Design with Frenetic AI

24.6.2025
14

Stackpole Releases Low VCR High Voltage Chip Resistors

23.6.2025
11

Murata Announces 0402 Automotive Chip Ferrite Beads for V2X

19.6.2025
28

Upcoming Events

Jul 23
13:00 - 14:00 CEST

PCB design for a Smartwatch

View Calendar

Popular Posts

  • Buck Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Boost Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Flyback Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • What is a Dielectric Constant and DF of Plastic Materials?

    4 shares
    Share 4 Tweet 0
  • LLC Resonant Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Ripple Current and its Effects on the Performance of Capacitors

    3 shares
    Share 3 Tweet 0
  • How to Design an Inductor

    0 shares
    Share 0 Tweet 0
  • Dual Active Bridge (DAB) Topology Explained

    0 shares
    Share 0 Tweet 0
  • SEPIC Converter Design and Calculation

    0 shares
    Share 0 Tweet 0
  • Why Low ESR Matters in Capacitor Design

    0 shares
    Share 0 Tweet 0

Newsletter Subscription

 

Passive Components Blog

© EPCI - Leading Passive Components Educational and Information Site

  • Home
  • Privacy Policy
  • EPCI Membership & Advertisement
  • About

No Result
View All Result
  • Home
  • Knowledge Blog
  • Premium Suppliers

© EPCI - Leading Passive Components Educational and Information Site

This website uses cookies. By continuing to use this website you are giving consent to cookies being used. Visit our Privacy and Cookie Policy.
Go to mobile version