TAIYO YUDEN: World's First Multilayer Metal Power Inductor Capable of Withstanding Temperatures up to 165°C
Trade news

TAIYO YUDEN: World's First Multilayer Metal Power Inductor Capable of Withstanding Temperatures up to 165°C

　　TAIYO YUDEN CO., LTD. has commercialized four items, including the multilayer metal power inductor MCOIL™ "LACNF2012KKTR24MAB" (2.0 x 1.25 x 1.0 mm, maximum height value shown), which complies with the "AEC-Q200" reliability qualification test standard for passive automotive components. Through advancements made in our proprietary metal materials and multilayer construction methods, we have achieved an upper operating temperature limit of 165°C for a multilayer metal power inductor, a world’s first *1 .　　These products are used as choke coils in DC-DC converters used in automotive engine ECUs, control systems such as BMS, safety systems such as ABS, body-related systems such as ADAS, and information systems such as instrument clusters.　　By extending the upper operating temperature limit range of our conventional product "LCCNF2012KKTR24MAD" (operating temperature range: -55°C to +150°C) to 165°C, these new products are able to contribute to the miniaturization and performance enhancement of power supply circuits by enabling high-density mounting in high-temperature environments such as in automobiles.　　Mass production of these products began at our subsidiary, WAKAYAMATAIYO YUDEN CO., LTD. (Inami-cho, Hidaka-gun, Wakayama Prefecture, Japan), in April 2024. Samples are available for 50 yen per unit.　　The advancements that we have seen in recent years in electronic controls in production vehicles, as typified by ADAS units, has led to a greater number of power supply circuits on vehicles, which in turn has led to growth in the demand for power inductors that are used in these circuits. Furthermore, performance also continues to improve through functional integration, such as in integrated cockpits that combine instrument clusters and infotainment devices. While the throughput of IC chips continues to grow as these devices become increasingly multifunctional and high-performance, there is also a growing need to make on-board electronic components smaller and thinner in order to arrange devices in highly dense configurations and integrate them into single modules. Components mounted at high densities become more susceptible to the effects of heat, as their reduced volumes makes it more difficult for the heat generated by the components to dissipate. Furthermore, since ECUs are increasingly being installed in engine compartments—a high temperature environment—on-board electronic components must be able to withstand high temperatures.　　To address these challenges, TAIYO YUDEN further improved the reliability of the MCOIL™ LCCN series of multilayer metal power inductors, which had the advantage of being smaller and thinner, and launched the AEC-Q200 certified LACN series which provides an extended operating temperature range of - 55°C to +165°C.　　TAIYO YUDEN focuses on the development of products that meet market needs, and will continue to expand its power inductor product lineup.　　*1 As of May 30, 2024, according to TAIYO YUDEN study.　　■Application　　Choke coils in DC-DC converters used in automotive engine ECUs, control systems such as BMS, safety systems such as ABS, body-related systems such as ADAS, and information systems such as instrument clusters.　　■Characteristics　　*2 The saturation current value (Idc1) is the DC current value having inductance decrease down to 30%. (at 20℃)　　*3 The temperature rise current value(Idc2) is the DC current value having temperature increase up to 40℃. (at 20℃)　　*4 The rated current is the DC current value that satisfies both of current value saturation current value and temperature rise current value.　　* Derating of rated current is necessary depending on the ambient temperature. Please see our website below for detailed specifications
Key word：
Release time：2025-05-30 14:21 reading：317 Continue reading>>
TAIYO YUDEN Expands Lineup of Multilayer Metal Power Inductors for Smartphones
Trade news

TAIYO YUDEN Expands Lineup of Multilayer Metal Power Inductors for Smartphones

　　TAIYO YUDEN CO., LTD. has begun mass production of three products, including the LSCND1412FETR47ME (1.4 x 1.2 x 0.65 mm; maximum height shown), in its MCOIL™ LSCN series of multilayer metal power inductors.　　These power inductors are for use as choke coils in the power circuits of smartphones. Retaining the same form factor as our previous product "LSCND1412FETR47MC" (1.4 x 1.2 x 0.65 mm), the DC superposition allowable current of our new "LSCND1412FETR47ME" has been increased by 20% to 3.6 A (previously 3.0 A), and its DC resistance has been reduced by 10% to 38 mΩ (previously 42 mΩ). These improvements contribute to boosting the performance of power supply circuits in smartphones, which are becoming increasingly sophisticated and multifunctional.　　Mass production of these products commenced at our subsidiary WAKAYAMATAIYO YUDEN CO. LTD. (Inami-cho, Hidaka-gun, Wakayama Prefecture, Japan). Samples are available for 50 yen per unit.　　Technology Background　　Smartphones are becoming increasingly sophisticated, with capabilities such as AI-based image and video editing, as well as voice and text translation. At the same time, there is demand for greater efficiency in order to keep their body small, and achieve long operating times with limited battery capacity. To achieve both high performance and high efficiency, a smartphone’s processor operates at high speeds with low voltage and high current, and employs a multi-core configuration where each core is equipped with its own power supply circuit, allowing it to improve both its processing power and efficiency by switching the cores used depending on load. This trend in power supply circuits has become particularly pronounced in cutting-edge smartphones, which require both high performance and high efficiency, and in recent years has led to an increase in the adoption of small and thin low-inductance power inductors capable of handling large currents.　　To address these needs, at TAIYO YUDEN we have been using metallic magnetic materials with high DC superposition characteristics to optimize the design and other aspects of our MCOIL™ LSCN series multilayer metal power inductors—which have the advantage of allowing them to be made more compact and thinner—commercializing three products, including “LSCND1412FETR47ME,” which deliver 20% greater DC superposition allowable current and 10% smaller DC resistance compared to our previous products.　　In response to market needs, we will continue to expand and improve our product lineup with higher functionality and reliability, as well as smaller and thinner products.　　■ Application　　For use as a choke coil for power circuits in smartphones and other devices.　　■Characteristics　　*1 The saturation current value (Idc1) is the DC current value having inductance decrease down to 30%. (at 20℃)　　*2 The temperature rise current value(Idc2) is the DC current value having temperature increase up to 40℃. (at 20℃)　　*3 The rated current value is following either Idc1(max) or Idc2(max), which is the lower one.　　* “MCOIL” is a registered trademark or a trademark of TAIYO YUDEN CO., LTD. in Japan and other countries.　　* The names of series noted in the text are excerpted from part numbers that indicate the types and characteristics of the products, and therefore are neither product names nor trademarks.
Key word：
Release time：2025-05-30 13:51 reading：361 Continue reading>>
TAIYO YUDEN Commercializes LCQPB Series of Power Inductors for Automotive Application
Trade news

TAIYO YUDEN Commercializes LCQPB Series of Power Inductors for Automotive Application

　　TAIYO YUDEN CO., LTD. has commercialized the new LCQPB series of wire-wound ferrite power inductors, which have AEC-Q200 qualification for automotive passive components.　　The LCQPB series power inductors are designed for use as choke coils and noise filters in DC-DC converters in power circuits for automotive body and information systems.　　TAIYO YUDEN previously released the LCEN series and LCCN series of metal power inductors made from metallic magnetic substances for automobile application and the LCXN series and LCXH series of ferrite power inductors. To these, we add the new LCQPB series to give our customers more choice by substance and structure and a high degree of freedom in design.　　The LCQPB series inductors have been manufactured by our overseas subsidiary, TAIYO YUDEN (PHILIPPINES), (Lapulapu City, Cebu) since March 2025. Samples are available for 50 yen per unit.　　Technology Background　　The advancements that we have seen in recent years in electronic controls in vehicles, as typified by ADAS units, have led to a greater number of power supply circuits on vehicles, which in turn has led to growth in the demand for power inductors that are used in these circuits. In order to miniaturize power supply circuits, engineers demand inductors with specific properties that allow high-density mounting with a high degree of freedom in design and noise suppression by frequency.　　Therefore, TAIYO YUDEN has newly commercialized the LCQPB series, which complies with AEC-Q200. The LCQPB series inductors have a frameless structure that results in a small footprint. The new LCQPB series, together with our other series of inductors designed for automotive application, give our customers more choice by substance and structure and a high degree of freedom in design.　　TAIYO YUDEN focuses on the development of products that meet market needs, and will continue to expand its power inductor product lineup.　　■ Application　　The LCQPB series power inductors are applicable as choke coils and noise filters in DC-DC converters in power circuits for automotive body and information systems.
Key word：
Release time：2025-04-10 13:18 reading：414 Continue reading>>
Murata Commercializes Broadband-Compatible 1210 inch size, in-vehicle PoC Inductors, Reducing Component Size and Weight
Trade news

Murata Commercializes Broadband-Compatible 1210 inch size, in-vehicle PoC Inductors, Reducing Component Size and Weight

　　Murata Manufacturing Co., Ltd. (hereinafter “Murata”) has commercialized the 1210 size in-vehicle PoC inductor LQW32FT_2H series (hereinafter “this product”). 　　With Advanced Driver Assistance Systems (ADAS) becoming more commonplace in recent years, the numbers of high-definition cameras on vehicles are also increasing. High-speed interface PoC*2 that combine both signal and power transmissions on a single coaxial cable are being used on vehicle camera systems with LVDS*1 transmission. In a PoC circuit, a circuit processor handles broadband signals, and usually multiple inductors are used for a wider bandwidth to maintain the high impedance required to separate the signal and the power.　　In response, we applied our proprietary ceramic materials and product structures in order to achieve a high impedance, reducing the number of PoC inductors. This contributes to component size and weight reduction through implementation space reduction.　　Going forward, Murata will strive to develop products to meet market needs and contribute to the shift to high-performance and high-functionality automobiles.　　Specifications　　*1LVDS (Low Voltage Differential Signal): The most general technical standard for the transmission of differential data.　　*2PoC (Power Over Coax): A method that combines the signal line and power line to a single coaxial cable.　　*3AEC-Q200: One of the standards defined by the AEC (Automotive Electronics Council).
Key word：
Release time：2025-04-08 14:17 reading：564 Continue reading>>
TAIYO YUDEN Realizes a Metal Power Inductor as Thin as 0.33 mm
Trade news

TAIYO YUDEN Realizes a Metal Power Inductor as Thin as 0.33 mm

　　TAIYO YUDEN CO., LTD. has begun mass production of a new metal power inductor MCOIL™ LSCN series of multilayer metal power inductors, the "LSCND1005CCTR47MH" (1.0 x 0.5 x 0.33 mm; maximum height shown).　　This power inductor is for use as choke coils in the power supply circuits of wearable devices, such as smartphones, AR/VR glasses, TWS devices, and smart watches. The "LSCND1005CCTR47MH" is 40% lower in height than our previous product, the "LSCNB1005EETR47MB" (1.0 x 0.5 x 0.55 mm), and realizes a metal power inductor as thin as 0.33 mm. This will contribute to the miniaturization and thickness reduction of cutting-edge electronic devices.　　Mass production of this products began at our subsidiary, WAKAYAMA TAIYO YUDEN CO., LTD. (Inami-cho, Hidaka-gun, Wakayama Prefecture), in December 2024. Samples are available for 50 yen per unit.　　Technology Background　　As smartphones, AR/VR glasses, and wearable devices are equipped with higher-performance processors, more sensors, multiple cameras, and higher-capacity batteries for sophistication, electronic components used in them need to be smaller and thinner.　　In particular, smartphones are requiring thinner electronic components, due to the trend towards foldable devices that combine large screens and smaller sizes, as well as the adoption of multi-layered circuit boards. On the other hand, wearable devices, such as AR/VR glasses, TWS devices, and smart watches, require smaller, lighter, and thinner components to achieve a thin profile and comfortable fit.　　To address these needs, TAIYO YUDEN has been expanding its lineup in the MCOIL™ LSCN series of multilayer metal power inductors which use metallic magnetic materials with high DC saturation characteristics, and provide superior characteristics for achieving miniaturization and thinness. With our latest upgrade, we have commercialized the "LSCND1005CCTR47MH," which achieves a thickness of 0.33 mm for a metal power inductor by utilizing the strengths of our multilayer process technology.　　This product will be on display at CES 2025, which takes place from January 7, 2025 at the Las Vegas Convention Center in Las Vegas, Nevada, U.S.A.　　In response to market needs, we will continue to expand and improve our product lineup with higher performance and reliability.　　■ Application　　For use as choke coils for power supply circuits in wearable devices such as smartphones, AR/VR glasses, TWS devices, and smart watches.　　* "MCOIL" is a registered trademark or a trademark of TAIYO YUDEN CO., LTD. in Japan and other countries.　　* The names of series noted in the text are excerpted from part numbers that indicate the types and characteristics of the products, and therefore are neither product names nor trademarks.
Key word：
Release time：2025-04-01 14:41 reading：347 Continue reading>>
Advantages and Applications of Through-Hole Power Inductors
Trade news

Advantages and Applications of Through-Hole Power Inductors

　　In the intricate world of electronics, numerous components work together seamlessly to power our devices. While some components take center stage, others function tirelessly behind the scenes, ensuring everything runs smoothly. Through-hole power inductors are prime examples of such essential elements.　　These inductors might seem like modest parts, but their role in regulating current flow is crucial for electronic circuits' stable and efficient operation. This blog explores the world of through-hole power inductors, their advantages, and the diverse applications where they play a vital role.　　Understanding The Importance of Power Inductors　　Power inductors are essential components in electronic circuits, particularly those dealing with power conversion and filtering. They act like traffic cops for current, smoothing out fluctuations and ensuring a steady flow. This becomes especially important in applications like DC-DC converters, where a stable voltage is crucial for powering delicate electronic components. Electrical noise and disruptions could wreak havoc on your circuit's performance without power inductors.　　Advantages of Through-Hole Power Inductors　　Through-hole power inductors offer distinct advantages over their surface-mount counterparts. Here's a closer look at some key benefits:　　Mechanical Stability: Through-hole inductors are soldered directly to the PCB through their legs, providing a robust mechanical connection. This is particularly beneficial for applications experiencing vibrations or shocks, as they are less prone to detaching than surface-mount components.　　Higher Power Handling Capability: The through-hole mounting style allows for larger core sizes and thicker wire gauges in power inductors. This translates to superior heat dissipation and the ability to handle higher currents than surface-mount options.　　Ease of Replacement and Repair: Through-hole components can be desoldered and replaced with relative ease, simplifying repairs and maintenance. This is a valuable advantage for situations where downtime needs to be minimized.　　Improved Heat Dissipation: The larger size and through-hole mounting of power inductors provide better thermal contact with the PCB. This allows for more efficient heat dissipation, keeping the inductor cooler and ensuring optimal performance.　　Applications of Through-Hole Power Inductors　　The robust nature and high current handling capabilities of through-hole power inductors make them ideal for various applications. Here are some prominent examples:　　Power Supplies and Converters: From regulating voltage in laptop chargers to powering sensitive circuits in desktop PCs, through-hole power inductors are workhorses in various power supply and converter applications. Their stability and ability to handle fluctuating currents make them a reliable choice.　　Automotive Electronics: The ever-increasing complexity of automotive electronics demands reliable components. Through-hole power inductors find application in engine control units (ECUs), audio systems, and other automotive electronics, ensuring smooth power delivery and resisting the vibrations encountered on the road.　　Industrial Control Systems: Industrial settings often involve high-power machinery and equipment. Through-hole power inductors play a vital role in regulating power within control systems, ensuring the smooth operation of motors, sensors, and other critical components.　　Telecommunications Equipment: The backbone of our connected world relies on stable power delivery. Through-hole power inductors are employed in telecommunication equipment like routers and switches, filtering out noise and maintaining signal integrity for seamless communication.
Key word：
Release time：2024-07-24 16:44 reading：659 Continue reading>>
What is an <span style='color:red'>inductor</span> ?
Trade news

What is an inductor ?

　　An inductor is a passive electronic component designed to store energy in the form of a magnetic field. It’s typically made of a coil of wire wound around a core material, such as iron or ferrite. When an electric current flows through the coil, it generates a magnetic field around it. The strength of this magnetic field is directly proportional to the current flowing through the coil.　　One of the fundamental properties of an inductor is its ability to resist changes in the current flowing through it. This property is known as inductance, denoted by the symbol “L,” and it’s measured in henries (H). Inductors are widely used in electronic circuits for various purposes, including filtering, energy storage, and signal processing. They’re often employed in conjunction with capacitors to create filters that block certain frequencies or pass others, forming essential components of many electronic devices and systems.　　What does an inductor do?　　Inductors play various important roles in circuits, and here are their main functions:　　1. AC Blocking/DC Passing: In a DC circuit, an inductor almost doesn’t impede the flow of current, acting like a short circuit, i.e., “passes DC.” However, in an AC circuit, an inductor generates reactance (XL = 2πfL), which impedes the flow of AC, increasing with frequency, i.e., “blocks AC.”　　2. Filtering: Inductors combined with capacitors can form various filters, such as low-pass filters, high-pass filters, etc., used to remove noise or specific frequency components from circuits, making the output signal purer.　　3. Oscillation: Combined with capacitors, they form LC oscillating circuits. When the circuit’s natural frequency matches the external signal frequency, oscillation can occur, used in signal generation and amplification circuits.　　4. Tuning and Selectivity: In wireless radio and communication systems, combinations of inductors and capacitors can be used for selectivity, allowing signals of specific frequencies to pass while suppressing others, such as selecting different broadcast channels on a radio.　　5. Energy Storage: Inductors can store magnetic field energy. In circuits like switch-mode power supplies, inductors can store energy when the switch is on and release it when the switch is off, achieving voltage conversion and current smoothing.　　6. Delay and Band-Rejection: Inductors can introduce phase delay in signals, used in time-delay circuits or to filter out signals of specific frequencies (band-rejection).　　7. Choking: In power supply circuits, inductors act as choke coils, capable of preventing high-frequency noise from entering sensitive circuits or stopping ripple currents in DC circuits, forming filter circuits with capacitors to provide smoother DC output.　　8. Signal Selection and Separation: Common-mode inductors and differential-mode inductors are used respectively to filter out common-mode noise and differential-mode noise, enhancing signal purity.　　9. Impedance Matching: In circuits where different impedance matching is needed between circuit sections, inductors can be used to adjust impedance to optimize signal transmission efficiency.　　How to choose an inductor?When selecting an inductor, several key factors need to be considered:　　1. Rated Current: The rated current of an inductor refers to the maximum current that can continuously pass through the inductor without causing it to overheat. When selecting an inductor, ensure that the chosen inductor’s rated current is greater than or equal to the maximum operating current in the circuit.　　2. Inductance Value: The inductance value (L, typically measured in henries [H], millihenries [mH], or microhenries [μH]) is determined based on the specific requirements of the circuit. For example, in filter circuits, the inductance value affects the frequency characteristics of the filter; in oscillating circuits, it relates to the oscillation frequency. Choosing the correct inductance value is crucial for the circuit’s functionality.　　3. Self-Resonant Frequency: For high-frequency applications such as RF filters, the self-resonant frequency (SRF) of the inductor is an important parameter. Ensure that the operating frequency of the selected inductor is lower than its self-resonant frequency to avoid performance degradation or instability.　　4. DCR (DC Resistance): DC resistance affects the efficiency and heating of the inductor, especially in high-current applications. Lower DCR can reduce energy losses but typically implies increased cost.　　5. Package Size and Form: In practical applications, space constraints are also important. Choose appropriate package sizes and shapes (such as vertical, horizontal, shielded, or unshielded) to meet PCB layout requirements.　　6. Cost: Different types of inductors (such as iron core, air core, ferrite core, etc.) and manufacturing processes affect cost. Choose inductors that offer high cost-effectiveness while meeting performance requirements.　　7. Operating Temperature Range: Ensure that the inductor’s operating temperature range covers the requirements of the application environment, especially in high-temperature or highly variable temperature environments.　　8. Stability: For applications requiring high stability (such as precision measuring instruments), select inductors with low temperature coefficients and low aging rates.　　Inductor selection is a comprehensive process that requires consideration of specific application scenarios, circuit design requirements, and cost budgets. In the initial design phase, it may also be necessary to use simulation software to verify the impact of inductor parameters on circuit performance.　　What are the types of inductors?　　The classification of inductors is diverse, and they can be categorized into multiple types based on different criteria. Here are some primary classification methods for inductors:　　1. Based on the magnetic core properties:　　– Air-core coils: Without a magnetic core, suitable for high-frequency applications.　　– Ferrite-core coils: Use ferrite as the magnetic core, suitable for medium to high-frequency applications.　　– Iron-core coils: Use iron material as the magnetic core, suitable for low-frequency and power applications.　　– Copper-core coils: Less common, used for special occasions.　　2. Based on the winding structure:　　– Single-layer flat-wound air-core inductor coils　　– Layer-wound air-core inductor coils　　– Multi-layer air-core inductor coils　　– Toroidal inductor coils　　– Wire wound type: Traditional construction, where the coil is wound around the magnetic core.　　– Stacked type: Made by stacking multiple layers of metal sheets, suitable for surface mounting.　　– Braided type and thin-film inductors: Suitable for specific high-frequency or miniaturization requirements.　　3. Based on the operating frequency:　　– High-frequency inductors: Used for radio frequency and high-frequency signal processing.　　– Intermediate-frequency inductors: Applied in circuits with a moderate frequency range.　　– Low-frequency inductors: Suitable for power filtering and low-frequency signal processing.　　4. Based on structural characteristics:　　– Magnetic-core coils　　– Variable inductors: Inductance value can be adjusted as required.　　– Color code inductors: Inductance value identified through color codes.　　– Coreless coils: Suitable for high-frequency applications.　　5. Based on installation form:　　– Vertical inductors, horizontal inductors, through-hole inductors, surface mount inductors, etc., adaptable to different PCB designs.　　6. Based on usage:　　– Oscillating inductors, tuning inductors, deflection yoke coils, choke coils, filter inductors, isolation inductors, compensation inductors, etc.　　7. Based on packaging form:　　– Standard inductors, toroidal inductors, epoxy resin inductors, surface mount inductors, etc.　　8. Based on whether inductance is adjustable:　　– Fixed inductors: Inductance value cannot be changed after manufacturing.　　– Adjustable inductors: Inductance value can be changed through mechanical adjustment.　　9. Based on coupling methods:　　– Self-induction coils: Current variation induces voltage within itself.　　– Mutual-induction coils (transformers): Current variation in one coil causes voltage or current variation in another coil.　　How to identify inductor?There are several common methods for identifying inductors, and below are some of the main ones:　　1. Direct Marking Method:　　This is the most straightforward identification method, directly labeling the nominal inductance of the inductor using numbers and alphanumeric symbols on the body of the inductor. For example, “10μH” may be directly written to indicate an inductance of 10 microhenries, with the letter following the unit possibly indicating the tolerance range.　　2. Alphanumeric Method:　　Using a combination of numbers and specific alphanumeric symbols to identify the inductance value and its tolerance. For example, “1R5” might represent an inductance of 1.5μH, where “R” indicates the decimal point position, and the unit is typically nH or μH.　　3. Color Ring Marking Method:　　Similar to the color ring identification of resistors, inductors can also be represented using color rings to indicate information such as inductance value and tolerance grade. Generally, the rings are counted from one end, and the inductance value is calculated based on the color code for the value and multiplier, with the last ring representing the tolerance.　　4. Surface Mount Inductor Identification:　　For surface mount inductors, their identification may include size codes (such as 3020 indicating 3.0mm x 2.0mm) and the inductance value directly printed on the component (such as 100, 220, etc.). These identifications typically appear in numeric form and may not include detailed tolerance information due to the small size.　　5. Other Identifications:　　In addition to the above methods, some inductors may also be identified using specific part numbers or coding systems, which require consulting the manufacturer’s datasheets to decode.　　Understanding the methods of identifying inductors is crucial for correctly recognizing and using inductor components, especially in the design, maintenance, and troubleshooting processes of electronic circuits.　　ConclusionInductors are indispensable components in electronic circuits, playing vital roles in a wide range of applications. From filtering out noise to energy storage and signal processing, inductors serve diverse functions that contribute to the functionality and efficiency of electronic devices and systems.　　Understanding the characteristics and classifications of inductors is crucial for selecting the right component for specific circuit requirements. Moreover, the identification methods of inductors, such as direct marking, alphanumeric codes, or color ring markings, provide essential information for circuit design, maintenance, and troubleshooting.
Key word：
Release time：2024-06-24 11:48 reading：657 Continue reading>>
How Air Core Inductors Work
Trade news

How Air Core Inductors Work

　　In the complex field of electronics, inductors play an essential role in controlling and regulating electrical currents. However, within this vast family of inductors, a specific type stands out for its unique properties: the air core inductor. According to a report by the US Commerce Department, the electronics industry in the United States is projected to reach a staggering $500 billion by 2030. This growth signifies the ever-increasing demand for efficient and reliable electronic components, and air core inductors are expected to play an important part in this technological world.　　This blog discusses inductors' importance in electronics, explores the specific attributes of air core inductors, and highlights their significant impact on modern electronics.　　Understanding Inductors　　Imagine a tiny electromagnet that resists changes in current. That's what an inductor is. When current flows through a coil of wire, it creates a magnetic field. If you change the current, the magnetic field tries to resist that change. Inductors store this resistance as energy, influencing how electricity behaves in a circuit.　　Inductance, measured in Henry's (H), is a crucial aspect of inductors. It represents the strength of an inductor's opposition to current changes. Higher inductance signifies greater resistance. Understanding inductance is vital, affecting how a circuit responds to varying currents.　　Their core material categorizes the three main types of inductors:　　Iron Core Inductors: These are the most common type, utilizing iron's high permeability (ability to concentrate magnetic fields) to achieve high inductance values. However, iron cores can introduce losses at high frequencies.　　Ferrite Core Inductors: Made from a ceramic material with iron oxide, ferrite cores offer a good balance between permeability and losses. They're widely used in various electronic applications.　　Air Core Inductors: As the name suggests, these inductors have air as their core material, making them unique and valuable for specific situations.　　What are Air Core Inductors?　　Air core inductors stand out for their unique properties. Unlike their iron and ferrite counterparts, they don't rely on a ferromagnetic material to enhance the magnetic field. This design offers several advantages:　　High Q Factor: The Q factor represents the quality of an inductor's resonance. Air core inductors boast a high Q factor due to minimal core losses like eddy currents and hysteresis (magnetic memory effect). This translates to sharper signal filtering and lower distortion.　　Low Distortion: The lack of a core minimizes magnetic hysteresis and saturation effects, which can distort signals in other inductor types. This makes air core inductors ideal for applications demanding high signal fidelity.　　Wide Frequency Range: Air core inductors operate effectively at high frequencies because air doesn't hinder magnetic field changes. This makes them perfect for radio frequency (RF) circuits.　　However, there are also some limitations to consider:　　Lower Inductance: Air core inductors have a core that amplifies the magnetic field, making achieving high inductance values easier. However, more wire turns may be necessary to achieve the desired inductance.　　Susceptibility to Interference: The absence of a core makes air core inductors more susceptible to external magnetic fields, potentially affecting their performance. Careful design and shielding are crucial in such applications.　　Size and Cost: Air core inductors may require more wire and significant form factors to compensate for lower inductance. This can impact their cost and size compared to some core-based alternatives.　　Function of Air Core Inductors　　Despite the limitations, air core inductors excel in specific applications:　　Magnetic Field Generation: Their ability to operate at high frequencies makes them ideal for generating high-frequency magnetic fields. This is useful in RF circuits like antennas and transformers.　　Inductance Calculation: The air core simplifies inductance calculations, as the core material doesn't introduce additional complexities. This allows for the precise design of circuits requiring specific inductance values.　　Applications of Air Core Inductors　　The unique properties of air core inductors make them well-suited for various electronic applications:　　RF Circuits: Their high Q factor and wide frequency range make them perfect for tuning circuits, filters, and antennas in radio frequency applications.　　Audio Systems: Air core inductors are prevalent in crossovers, tone controls, and high-fidelity audio equipment due to minimal signal distortion.　　Power Electronics: While less common in high-power applications, air core inductors can be found in switch-mode power supplies, inverters, and converters, particularly high-frequency switching.
Key word：
Release time：2024-05-30 13:39 reading：747 Continue reading>>
Choke Inductors What They Are and What They Do
Trade news

Choke Inductors What They Are and What They Do

　　Have you ever wondered how your phone stays charged or how your car radio delivers crystal-clear sound even on a bumpy road? The answer might lie in a tiny, unassuming component called a choke inductor. While they may not be the flashiest parts in your electronics, choke inductors are critical in ensuring smooth operation and clean power delivery across many devices. In this blog, we will look into the world of choke inductors and explain their function, work, and applications in everyday electronics.　　What is a Choke Inductor?　　A choke inductor, also commonly referred to as a choke coil inductor or simply a choke, is a passive electronic component that acts like a gatekeeper for electrical current. Unlike its cousin, the resistor, which dissipates energy as heat, a choke inductor manipulates the current flow based on its frequency. Here's the key difference:　　Choke inductors: Block high-frequency alternating current (AC) while allowing direct current (DC) and lower-frequency AC to pass through.　　Resistors: Resist all current frequencies, reducing the overall current flow and dissipating energy as heat.　　This selective filtering property makes choke inductors essential components in various electronic circuits, ensuring clean power delivery and mitigating unwanted electrical noise.　　How Does a Choke Inductor Work?　　The magic behind choke inductors lies in their ability to generate a magnetic field when current flows through their coil. This magnetic field, in turn, opposes any changes in current. Here's a breakdown:　　Current Flow: When current passes through the coil's wire, a magnetic field is generated around it.　　Magnetic Field Opposition: According to Faraday's Law of electromagnetic induction, this magnetic field tries to resist changes in the current that created it.　　Frequency Dependence: High-frequency AC signals involve rapid changes in the current direction. The opposing magnetic field substantially affects these rapid changes, making it more difficult for the high-frequency AC to pass through the choke.　　DC and Low-Frequency AC: The changes in current are slower for direct current (DC) and lower-frequency AC. The opposing magnetic field has less impact, allowing these currents to pass through the choke with minimal hindrance.　　Purpose of a Choke Inductor　　Choke inductors offer a variety of functionalities in electronic circuits. Here are some of their essentialkey purposes:　　Filtering: As mentioned, choke inductors filter out unwanted high-frequency noise from AC signals. This is crucial for ensuring clean power delivery and preventing interference with other components in the circuit.　　Energy Storage: Choke inductors can store energy in their magnetic field when current flows through them. This stored energy can then be released back into the circuit when needed. This property is beneficial in circuits requiring power regulation or transient voltage suppression.　　Voltage Regulation: Choke inductors can regulate circuit voltage levels with capacitors. By controlling the flow of current and the energy stored within the magnetic field, choke inductors help maintain a stable voltage output.　　Types of Choke Inductors　　While the basic operating principle remains the same, choke inductors come in various types based on their core material:　　Air-Core Chokes: These chokes have an air core that offers low inductance (the ability to store energy magnetically) but works well at high frequencies. They are typically used in RF (radio frequency) circuits.　　Iron-Core Chokes: Iron-core chokes provide higher inductance than air-core chokes, making them suitable for applications requiring more energy storage or filtering lower-frequency AC noise. However, they can suffer from core losses at higher frequencies.　　Ferrite-Core Chokes: Ferrite is a ceramic material commonly used in choke inductors. It offers a good balance between inductance and core losses, making it a versatile choice for many applications, especially beneficial for high-frequency filtering applications.　　Real-World Applications　　Choke inductors are ubiquitous in various electronic devices:　　Automotive Electronics: They play a vital role in power supplies for car audio systems, engine control units (ECUs), and other electronic components, filtering out noise and ensuring smooth operation.　　Power Electronics: Choke inductors are essential in switch-mode power supplies, filtering out switching noise and regulating voltage for various electronic devices.　　Radio Frequency (RF) Circuits: In RF circuits, choke inductors prevent unwanted signals from leaking out and interfering with other circuits. This ensures efficient signal transmission and reception.　　Final Thoughts　　Choke inductors are workhorses in electronics, silently ensuring clean power delivery, signal integrity, and protection from unwanted interference. By understanding their operating principles and various types, you gain valuable insight into the intricate workings of electronic circuits. Whether you're a seasoned engineer or an electronics enthusiast, appreciating the role of choke inductors empowers you to design and troubleshoot circuits more effectively.
Key word：
Release time：2024-05-24 13:26 reading：930 Continue reading>>
New Automotive-Grade DFE2MCPH_JL Series Power Inductors Have Improved DC resistance and Current Rating
Trade news

New Automotive-Grade DFE2MCPH_JL Series Power Inductors Have Improved DC resistance and Current Rating

　　Murata, a leading manufacturer of passive components, has expanded their line-up with the release of the DFE2MCPH_JL series of automotive-grade power inductors with values 0.33µH and 0.47µH, specifically designed for automotive powertrain/safety equipment. Compared with existing products in the Murata DFE2MCAH_J0 series, the 0.33µH part, for example achieves the highest standards in the industry with a reduction of 38% in DC resistance to 18 mOhm along with a 31% increase in rated current to 5.1 A for the same temperature rise. Rated current for a specified inductance drop is also 64% higher at 6.9 A. In addition, this product realized 40V of withstand voltage, and this is all in 0806-inch size with an operating temperature range of -40°C to +155°C with current derating.　　The metal alloy inductors leverage Murata’s advances in material and manufacturing technology to achieve a combination of high quality and performance. This makes the parts ideal for demanding automotive applications such as ADAS and IVI systems – a market that is rapidly expanding.　　The high DC current rating and low power dissipation of the DFE2MCPH_JL series, complemented by a high impulse voltage rating, make them particularly suitable for low-loss filtering and energy storage in power converter applications. At the same time, the miniature package saves space and material usage.　　Murata will continue to expand inductance value from 0.1 µH to 4.7µH in the future to meet market needs and to expand the breadth of automotive applications.　　Further applications for these high current, high-grade inductors are in automotive infotainment/comfort systems and medical equipment GHTF Classes A, B and Class C (not implant).
Key word：
Release time：2024-01-31 16:39 reading：1701 Continue reading>>

Turn to

/ 2

Popular categories
Semiconductors Circuit Protection Electromechanical Embedded Solutions Connectors, Interconnects Sensors, Transducers Optoelectronics Development Kits Test and Measurement Power Fans, Thermal Management Boxes, Enclosures, Racks Cables, Wires Passive Components Others
  • Week of hot material
  • Material in short supply seckilling
model brand Quote
CDZVT2R20B ROHM Semiconductor
MC33074DR2G onsemi
BD71847AMWV-E2 ROHM Semiconductor
TL431ACLPR Texas Instruments
RB751G-40T2R ROHM Semiconductor
model brand To snap up
ESR03EZPJ151 ROHM Semiconductor
IPZ40N04S5L4R8ATMA1 Infineon Technologies
STM32F429IGT6 STMicroelectronics
BP3621 ROHM Semiconductor
TPS63050YFFR Texas Instruments
BU33JA2MNVX-CTL ROHM Semiconductor
Hot labels
ROHM
IC
Averlogic
Intel
Samsung
IoT
AI
Sensor
Chip
Original authorized brand
More Licensed Brands>>
Information leaderboard
  • Week of ranking
  • Month ranking

About us

Qr code of ameya360 official account

Identify TWO-DIMENSIONAL code, you can pay attention to

AMEYA360 mall (www.ameya360.com) was launched in 2011. Now there are more than 3,500 high-quality suppliers, including 6 million product model data, and more than 1 million component stocks for purchase. Products cover MCU+ memory + power chip +IGBT+MOS tube + op amp + RF Bluetooth + sensor + resistor capacitance inductor + connector and other fields. main business of platform covers spot sales of electronic components, BOM distribution and product supporting materials, providing one-stop purchasing and sales services for our customers.

Please enter the verification code in the image below：

verification code