Power chip shielded inductors are compact surface-mount magnetic components that store energy in DC-DC converters while enclosing the magnetic flux inside a ferrite, metal-powder, or resin shell. The closed magnetic path stops radiation that would otherwise couple into nearby traces, sensors, or high-speed data lines on crowded boards.

Vishay Intertechnology – The Quiet Powerhouse behind Compact Circuits

• You can probably find an IHLP-style shielded inductor bearing Vishay’s brand on practically any contemporary power board.
• The Pennsylvania-based company has turned molded composite power inductors into a global staple for DC-DC converters, automotive systems, and high-current boards.
• Its new La Laguna factory in Gomez Palacio, Mexico, earned IATF 16949 automotive certification in late 2025 and now ships IHLP family parts alongside other magnetic components.
• In 2025-2026 Vishay released more than 2,000 new inductor and frequency-control SKUs across nearly 100 series, with plans to push past 3,000.
• Capital spending for 2026 is set between 400 and 440 million dollars, including a new 12-inch wafer facility in Germany scheduled to run engineering wafers by year-end.
• The inductors division continues to expand capacity in Mexico, Asia, and the Dominican Republic while serving CPUs, SSDs, industrial automation, telecom, and medical devices with soft-saturation designs that handle high transient spikes without air gaps.

TDK Corporation – Thin-Film Precision at Scale

TDK’s inductive-device business sits at the heart of its passive-components segment, supplying wire-wound, multilayer, and thin-film shielded power inductors for automotive, industrial equipment, optical transceivers, and AI data-center power rails. For the fiscal year ended March 2026 the group recorded consolidated net sales of roughly 2.5 trillion yen and employed more than 106,000 people worldwide, with inductive devices contributing a solid share of passive-component revenue.

Capital expenditures reached nearly 299 billion yen, much of it directed at expanding thin-film inductor lines derived from HDD-head process technology and at boosting production for low-voltage, high-current applications. Recent efforts focus on vertical power-delivery solutions that cut data-center energy use, while Chinese facilities continue to support volume output of ferrite-core and composite shielded parts used in mobility and server boards.

Murata Manufacturing – Ceramic Mastery Meets Power Density

Murata’s inductor and EMI-filter lines form a key part of its Components segment, delivering multilayer and wire-wound shielded power inductors for smartphones, mobility platforms, servers, and high-frequency circuits. The company employs around 72,500 people and maintains production sites across Japan, China, the Philippines, Thailand, India, and Singapore, with a new packaging operation scheduled for 2026. Inductor and EMI-filter revenue showed strong sequential gains in early 2026, driven by smartphone and automotive demand.

Murata’s catalog spans thousands of registered part numbers and supports annual production volumes measured in the hundreds of billions of units across all passive components. Its ongoing push into power inductors for IVR (integrated voltage regulator) applications aims to capture growing needs in MCU and CPU power stages while leveraging the same material and process strengths that made it a leader in multilayer ceramic capacitors.

KEMET (Yageo Group) – Specialty Magnetics with a Heritage Edge

Under the Yageo umbrella, KEMET continues to supply shielded power inductors and related magnetics for industrial, automotive, and power-conversion designs. The brand draws on decades of capacitor and magnetic expertise, offering both ferrite and composite-core options that meet stringent temperature and current requirements.

Production is integrated into Yageo’s global footprint, allowing rapid response to automotive qualification cycles and industrial automation projects. Recent catalogs emphasize AEC-qualified series suitable for DC-DC converters and EMI-sensitive environments, serving OEMs that need consistent performance across temperature swings and mechanical stress. KEMET’s parts appear in a wide range of power-management boards where reliability over long operating hours is non-negotiable.

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Coilcraft – Custom and Catalog Excellence from the Midwest

Founded in 1945 as a custom coil maker near Chicago, Coilcraft has grown into a privately held specialist with production centers in multiple countries and a workforce historically reported in the thousands. Its power-inductor lineup includes low-profile, high-current shielded SMD devices (XAL, XFL, SER families) designed for tight DCR, high saturation current, and AEC-Q200 automotive use.

The company maintains engineering support and quick-turn prototyping that appeal to designers in telecommunications, computers, instrumentation, aerospace, and medical markets. Catalog and custom magnetics ship from facilities that duplicate critical processes, ensuring supply continuity. Coilcraft’s focus on application-specific performance keeps it a preferred source when standard catalog parts must be tuned for exact board requirements.

Allied Components International – Volume-Oriented Shielded Solutions

Allied Components International has built a reputation for high-volume SMD shielded power inductors used in consumer, industrial, and automotive power stages. Its portfolio covers a broad range of inductance values and current ratings, with manufacturing scaled to support large OEM programs.

The company appears consistently among suppliers serving Chinese, European, and North American markets, emphasizing cost-effective yet reliable magnetic shielding. Recent activity centers on meeting demand for compact DC-DC converter components in cost-sensitive yet performance-critical applications.

Bourns – Automotive-Grade Reliability from California

• Bourns, headquartered in Riverside, California, offers extensive SMD shielded power-inductor families (SRP, SRR, SRU, SPB) featuring flat-wire and powdered-iron cores capable of handling currents up to several tens of amperes.
• Many series carry AEC-Q200 qualification for automotive and industrial power supplies.
• In 2025-2026 the company continued to expand its metal-alloy and high-current lines, including new semi-shielded automotive-grade parts.
• Bourns parts are widely designed into DC-DC converters, battery-management systems, and industrial control boards where low DCR and soft saturation are essential.

Fastron – European Precision in Compact Form Factors

Fastron specializes in SMD shielded power inductors and RF components, serving European and global customers with carefully engineered magnetic solutions. Its product range emphasizes consistent inductance tolerance, thermal stability, and shielding effectiveness for power-conversion and filtering circuits.

Production focuses on mid-to-high-volume industrial and automotive applications, with designs that balance size, current handling, and EMI performance. Fastron remains a reliable source for designers who need European-manufactured magnetics with documented quality systems.

Pulse Electronics – Magnetics for Power and Signal Integrity

Pulse Electronics (now under Littelfuse ownership) supplies shielded power inductors, transformers, and related magnetics for telecom, networking, industrial, and automotive markets. Its catalog includes high-current SMD power inductors optimized for DC-DC stages and power-over-Ethernet systems.

Manufacturing capacity supports both standard and custom designs, with parts appearing in data-communication equipment and industrial power supplies. Recent efforts continue to address the need for compact, high-efficiency magnetics in high-density boards.

Coilmaster Electronics – High-Volume Asian Production Strength

Coilmaster Electronics focuses on SMD shielded power inductors for consumer electronics, industrial controls, and power-conversion applications. Operating large-scale production lines, the company delivers a wide selection of inductance values and package sizes suited to high-volume assembly. Its parts are commonly found in power-management modules where magnetic shielding reduces crosstalk and improves overall board efficiency. Coilmaster continues to expand capacity to meet demand from Asian and global OEMs.

Würth Elektronik – Application Support Meets Broad Catalog

• Würth Elektronik employs roughly 7,300 people across 23 production sites worldwide and generated group sales of about 1.06 billion euros in 2025.
• Its WE-PD, WE-MAPI, and related magnetically shielded SMT power-inductor series cover inductance values from fractions of a microhenry to thousands of microhenries, with high saturation currents and low RDC options. Many series carry AEC-Q200 qualification for automotive and industrial use.
• The company emphasizes design-in support, reference circuits, and EMC co-design, making its inductors a frequent choice for engineers building EMI-sensitive power stages in Europe and beyond.

Walsin Technology – Compact Shielded Solutions from Taiwan

Walsin Technology produces SMD shielded power inductors and passive components aimed at consumer, networking, and industrial power applications. Its product lines emphasize small footprints, reliable magnetic shielding, and competitive current ratings suitable for high-volume surface-mount assembly.

Manufacturing is integrated into Taiwan’s electronics supply chain, supporting rapid delivery to regional and international customers. Walsin parts appear in a variety of DC-DC converter and filtering roles where space and cost constraints are tight.

Kyocera AVX – Ferrite and Iron-Powder Versatility

Kyocera AVX supplies LMXS and related SMD shielded power inductors that use both ferrite and pressed iron-powder cores. These devices serve power-supply and converter circuits requiring stable inductance under DC bias and effective magnetic shielding.

The company leverages Kyocera’s materials expertise and global manufacturing network to deliver parts qualified for industrial and automotive environments. Recent catalogs continue to expand high-current and low-profile options for compact power stages.

Taiyo Yuden – Metal-Composite Miniaturization Leaders

Taiyo Yuden employs approximately 20,600 people and operates multiple plants in Japan (Haruna, Nakanojo, Tamamura, Yawatabara) plus overseas sites. In April 2026 the company began mass production of nine new multilayer metal power inductors in the MCOIL LSCN series, including ultra-compact sizes such as 0.8 × 0.45 × 0.65 mm and 1.0 × 0.8 × 0.80 mm.

These parts target choke applications in smartphones, wearables, and TWS earphones, delivering footprint reductions of roughly 30-40 % while maintaining saturation performance. Inductor sales for the fiscal year ended March 2026 reached about 64.3 billion yen, supported by demand from memory modules, game consoles, and consumer devices.

Sumida Corporation – Custom Coil Expertise Across Continents

Sumida employs nearly 15,000 people and maintains manufacturing sites in Japan, China, Vietnam, Thailand, Mexico, Germany, Romania, Slovenia, the Czech Republic, and the United States, plus R&D centers in four countries. Consolidated net sales for the year ended December 2025 reached approximately 147 billion yen.

The company’s power-inductor and RF-inductor portfolio includes surface-mount, through-hole, and high-current designs used in automotive electronics, industrial equipment, renewable-energy systems, and data-center power supplies. A new Hai Phong plant in Vietnam began operations in January 2026 with more than 12,000 square meters of floor space, expanding capacity for consumer and automotive magnetics. Sumida’s strength lies in custom design-to-order solutions that integrate inductors into complete power modules for demanding environments.