High-Current Ferrite Beads (SMD / THT EMI Filters) | High Current Power Inductor Manufacturer | Coilmaster Electronics
Manufacturer of High-current ferrite beads EMI filter, SMD / THT ferrite choke, power line noise suppressor. High-current ferrite beads (chokes) are cost-effective and highly reliable EMI suppression components commonly used in power and signal integrity designs. Available in SMD (Surface Mount) and THT (Through-Hole) structures, these ferrite beads provide excellent high-frequency noise filtering and are easy to integrate into both low-power and high-current circuits (up to 10A). Coilmaster offers various ferrite materials and core geometries to meet different impedance and current requirements while ensuring low DC Resistance (DCR). The THT RH series, known for its high resistivity and long-term stability, is widely used in EMI filters, RFI filters, Ethernet EMI filters, AC/DC EMI filters, and other circuits requiring effective noise attenuation. 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.
High-Current Ferrite Beads (SMD / THT EMI Filters)
High-Current Ferrite Beads (Chokes) for Power Line EMI Filtering and Signal Integrity
High-current ferrite beads (chokes) are cost-effective and highly reliable EMI suppression components commonly used in power and signal integrity designs. Available in SMD (Surface Mount) and THT (Through-Hole) structures, these ferrite beads provide excellent high-frequency noise filtering and are easy to integrate into both low-power and high-current circuits (up to 10A). Coilmaster offers various ferrite materials and core geometries to meet different impedance and current requirements while ensuring low DC Resistance (DCR). The THT RH series, known for its high resistivity and long-term stability, is widely used in EMI filters, RFI filters, Ethernet EMI filters, AC/DC EMI filters, and other circuits requiring effective noise attenuation.
This wideband ferrite choke is designed for medium to high-current DC power and signal filtering. Compared with multilayer chip beads, high-current ferrite beads feature larger dimensions, lower impedance values, and significantly higher current-handling capability (up to 10A). The SMD versions offer compact size with strong EMI/RFI attenuation, making them ideal for PCB applications requiring robust filtering performance, particularly where magnetic saturation is a concern.
SMD & THT Structure Options for Current and Mechanical Needs
Engineers can choose between compact SMD versions for automated PCB assemblies or THT types for stronger mechanical stability and higher current capability, including multi-hole ferrite choke designs such as the RH series. The THT option is often preferred for I/O ports or power modules that require higher thermal dissipation and robust mechanical retention.
Optimal Impedance and Ferrite Material Customization
Characteristic
FCC & VDE EMI suppression support for compliance.
EMI/RFI wideband attenuation across MHz to GHz ranges.
High IDC capability and low DCR for power applications.
Simple and robust ferrite structure for high reliability.
Long-term thermal and electrical stability (Anti-saturation).
Available in both SMD and THT mounting options.
Features
- Supports high-current applications up to 10A or higher.
- Available in SMD and THT versions for design flexibility.
- Effective high-frequency noise filtering for power and signal lines.
- Adjustable ferrite material and impedance characteristics.
- Ideal for EMI troubleshooting or design-phase suppression.
- Cost-effective noise filtering solution.
Applications
- Power supply systems and DC-DC converter line filtering.
- Wireless communication devices and telecom systems.
- Computer and IT-related equipment power rails.
- Industrial control systems and high-reliability circuits.
- Power and signal lines requiring robust EMI/RFI suppression.
- General PCB-level noise filtering where Irms is critical.
Gallery
Through hole ferrite bead
Four line ferrite EMI filter
SMD High Current Ferrite Bead
| Image | name | Size(mm) | Inductance(uH) | Isat(A) | Irms(A) | DCR(mΩ) | Action |
|---|---|---|---|---|---|---|---|
| 0.047uH, 42A SMD High Current Flat Wire Power Inductors | 7.2x7.0x3.0 | 0.047 | 42 | 39 | 0.24 | |
|
| 0.068uH, 32A SMD High Efficiency Flat Wire Power Inductors | 7.2x7.0x3.0 | 0.068 | 32 | 39 | 0.24 | |
|
| 0.082uH, 26A SMD Low Core Loss Flat Wire Power Inductors | 7.2x7.0x3.0 | 0.082 | 26 | 39 | 0.24 | |
|
| 0.1uH, 22A SMD High Power Density Flat Wire Power Inductors | 7.2x7.0x3.0 | 0.1 | 22 | 39 | 0.24 | |
|
| 0.12uH, 18A SMD High Reliability Flat Wire Power Inductors | 7.2x7.0x3.0 | 0.12 | 18 | 39 | 0.24 | |
|
| 0.072uH, 31A SMD High Efficiency Flat Wire Power Inductors | 7.2x7.0x5.0 | 0.072 | 31 | 37 | 0.28 | |
|
| 0.1uH, 30A SMD Low Core Loss Flat Wire Power Inductors | 7.2x7.0x5.0 | 0.1 | 30 | 37 | 0.28 | |
|
| 0.15uH, 25.5A SMD High Power Density Flat Wire Power Inductors | 7.2x7.0x5.0 | 0.15 | 25.5 | 37 | 0.28 | |
|
| 0.2uH, 19A SMD High Reliability Flat Wire Power Inductors | 7.2x7.0x5.0 | 0.2 | 19 | 37 | 0.28 | |
|
| 72nH, 65A SMD EMI Filter | 7.5x7.3x4.95 | 0.072 | 90 | 65 | 0.18 | |
|
| 100nH, 65A SMD EMI Filter | 7.5x7.3x4.95 | 0.1 | 60 | 65 | 0.18 | |
|
| 150nH, 65A SMD EMI Filter | 7.5x7.3x4.95 | 0.15 | 32 | 65 | 0.18 |
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High-Current Ferrite Beads (SMD / THT EMI Filters) | 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, High-Current Ferrite Beads (SMD / THT EMI Filters), 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.