SMD Toroidal Inductors | High Current Power Inductor Manufacturer | Coilmaster Electronics
Manufacturer of SMD toroidal power choke with ferrite ring core and molded SMT package. SMD toroidal power inductors utilize a closed-loop ring core magnetic design to store energy efficiently with minimal magnetic leakage. Unlike drum-core inductors, the toroidal structure distributes flux evenly through the core, providing low EMI, high inductance density, and stable performance across both low- and high-frequency power stages. These inductors are produced as compact, molded SMT packages, enabling automated PCB assembly for modern power conversion circuits. Coilmaster Electronics is a high-current High Current Power Inductors, Automotive Grade Chokes & Inductors,High Frequency and Planar Transformers, LAN Magnetics (RJ45), Multilayer Chip Beads manufacturer from Taiwan since 1995. Coilmaster offers AEC-Q200 certified, high-efficiency power inductors, chokes, and transformers. Specializing in low-loss, high-current components for Automotive, 5G, and Industrial applications. Contact our experts for instant support. With more than 20 years of experience in magnetic territory, Coilmaster Electronics is specialized in the production of SMD power inductors, common mode choke, high frequency transformers.
SMD Toroidal Inductors
SMD Toroidal Power Inductors: Naturally Low EMI & High Inductance Density
SMD toroidal power inductors utilize a closed-loop ring core magnetic design to store energy efficiently with minimal magnetic leakage. Unlike drum-core inductors, the toroidal structure distributes flux evenly through the core, providing low EMI, high inductance density, and stable performance across both low- and high-frequency power stages. These inductors are produced as compact, molded SMT packages, enabling automated PCB assembly for modern power conversion circuits.
With inherently low stray flux and high inductance per volume, SMD toroidal chokes are ideal for noise-sensitive power systems requiring compact filtering components. Their molded construction offers strong mechanical stability and simplifies surface-mount production, making them widely used in DC-DC converters, filtering networks, audio circuits, and signal integrity applications.
Closed Magnetic Path, Naturally Low EMI
Toroidal ring-core geometry reduces stray flux without requiring an external magnetic shield, offering low EMI performance suitable for filtering and noise-critical power circuits.
High Inductance Density for Compact Filtering
The wound ferrite ring core supports high inductance in a small footprint, making the device useful for LC filtering and energy storage where PCB space is constrained.
Characteristic
Closed magnetic path for naturally low EMI
High inductance density in compact footprints
Excellent filtering behavior for lowāhigh frequency circuits
Robust molded structure for SMT production
Suitable for both energy storage and line filtering applications
Features
- Low stray magnetic field comparable to shielded inductors
- High inductance achievable without large footprint
- Low Rdc improves efficiency in DC-DC power rails
- Molded SMT construction for automated assembly
- Stable magnetic performance using ferrite ring cores
- Optional inductance customization for filter tuning
Applications
- LC filters for consumer and industrial power supplies
- DC-DC converter chokes requiring compact high inductance
- Automotive multimedia and audio noise suppression
- LED driver filtering and EMC compliance designs
- Telecom / networking modules requiring low EMI
- Precision filtering in measurement and sensing equipment
| Image | name | Size(mm) | Inductance(uH) | Isat(A) | Irms(A) | DCR(mĪ©) | Action |
|---|---|---|---|---|---|---|---|
| 6.5uH, 12.4Amps SMD Toroidal Coil Inductors | 18.8x18.8x10.5 | 6.5 | 12.4 | 7.2 | ||
|
| 8.4uH, 10.4Amps SMD Toroidal Power Inductor | 18.8x18.8x10.5 | 8.4 | 10.4 | 8.5 | ||
|
| 11uH, 14Amps SMD Toroidal Coil Inductors | 23.88x23.88x10.5 | 11 | 14 | 8.2 | ||
|
| 18uH, 10Amps SMD Toroidal Power Inductor | 23.88x23.88x10.5 | 18 | 10 | 12.5 | ||
|
| 16uH, 7.2Amps SMD Toroidal Coil Inductors | 17.02x17.78x10.5 | 16 | 7.2 | 19.7 | ||
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| 26uH, 5.1Amps SMD Toroidal Power Inductor | 17.02x17.78x10.5 | 26 | 5.1 | 32 | ||
|
| 73uH, 2.6Amps SMD Toroidal Coil Power Inductor | 17.02x17.78x10.5 | 73 | 2.6 | 133 | ||
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| 2000uH, 0.71Amps SMD Toroidal Power Choke | 17.02x17.78x10.5 | 2000 | 0.71 | 1932 | ||
|
| 3.8uH, 8Amps SMD Toroidal Coil Inductors | 14.22x14.35x9.5 | 3.8 | 8 | 9.3 | ||
|
| 7.5uH, 5.4Amps SMD Toroidal Power Inductor | 14.22x14.35x9.5 | 7.5 | 5.4 | 18.7 | ||
|
| 22uH, 2.7Amps SMD Toroidal Coil Power Inductor | 14.22x14.35x9.5 | 22 | 2.7 | 63 | ||
|
| 73uH, 1.3Amps SMD Toroidal Power Choke | 14.22x14.35x9.5 | 73 | 1.3 | 290 |
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SMD Toroidal Inductors | High Current Power Inductor Manufacturer | Coilmaster Electronics
Located in Taiwan since 1995, Coilmaster Electronics Co., Ltd. has been a manufacturer of magnetic components. Its main magnetic components include, SMD Toroidal Inductors, common mode chokes, SMD molding power chokes, chock coil inductors, SMD shielded and semi-shielded power inductors, low profile and high current power inductors, high voltage power inductors, ethernet and LAN power transformers, flat wire inductors, RJ45 jacks with integrated magnetics and high frequency transformers, and ceramic or air coil multilayer chip inductors.
Coilmaster offers AEC-Q200 certified, high-efficiency power inductors, chokes, and transformers. Specializing in low-loss, high-current components for Automotive, 5G, and Industrial applications. Contact our experts for instant support. With more than 20 years of experience in magnetic territory, Coilmaster Electronics is specialized in the production of SMD power inductors, common mode choke, high frequency transformers.
Coilmaster Electronics has been providing customers with high current power inductors since 1995, with both advanced technology and 29 years of experience, Coilmaster Electronics ensures that each customer's requirements are met.