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What are the common types of surface mount inductors? | Common Mode Power Line Choke Manufacturer | Coilmaster Electronics

There are several types of inductors available on the market. How can they be distinguished from each other, and what factors should be considered when choosing the appropriate inductor for a specific application? Coilmaster Electronics is Taiwan high-current Power Inductors, High Current Inductors, LAN Transformers, Molded Power Chokes, Chip beads, Common Mode Choke, High Frequency Transformer, RJ45 with magnetics, Multilayer Chip Inductors, Automotive grade power inductor, Automotive grade common mode choke, Automotive grade chip beads, Automotive grade transformer manufacturer since 1995. Coilmaster is a professional manufacturer for inductor, common mode choke, chip beads and transformer. Our vision is “Creating high-performance inductors, reducing energy loss, and contributing to sustainable” To achieve this, our engineer team is keen to design the power inductor to have better efficiency. 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.

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What are the common types of surface mount inductors? | Common Mode Power Line Choke Manufacturer | Coilmaster Electronics

What are the common types of surface mount inductors? | Coilmaster Electronics specialize in the production of SMD power inductors, common mode choke, high frequency transformers.

What are the common types of surface mount inductors?

There are several types of inductors available on the market. How can they be distinguished from each other, and what factors should be considered when choosing the appropriate inductor for a specific application?

Multilayer Inductor

A multilayer inductor consists of a substrate structure and a coil. The substrate structure includes a layer of insulation material that covers a substrate and a coil formed on top of the insulation material. The main feature of multilayer inductors is their high magnetic density, which allows for a larger inductance value. In addition, their simple structure results in relatively low manufacturing costs.

Why Choose It?
Ultra-Compact Size: Ideal for tight PCB layouts in RF circuits and portable devices.
High-Frequency Performance: Often used in signal processing, RF, and other high-frequency applications.
Typical Trade-Offs:
Lower Current Ratings: Not typically suitable for high-current power stages.
Possible Higher Cost per Unit: Advanced manufacturing processes can increase price.

Unshielded Inductor

An unshielded coil refers to a coil that is not covered by metal shield material (such as a magnetic core or magnetic powder). They are typically used in electronic circuits for energy storage and electromagnetic interference suppression. Unshielded inductors have lower electromagnetic interference suppression capabilities, and may not be ideal for use in environments with strong electromagnetic interference. However, their manufacturing costs are lower, making them a viable option for some applications
Why Choose It?
Lowest Cost Option: Favored for budget-sensitive applications.
Wide Availability: A large variety of inductance values and current ratings.
Typical Trade-Offs:
Minimal EMI Containment: Not suitable for noise-critical designs.

Semi-Shielded Inductor

A semi-shielded inductor uses magnetic powder to cover the coil, providing shielding effects that fall between those of unshielded and shielded inductors. Semi-shielded coils are typically used in electronic circuits for energy storage and electromagnetic interference suppression. Compared to unshielded coils, semi-shielded coils have better electromagnetic interference suppression capabilities, but their manufacturing costs are slightly higher.
Why Choose It?
Moderate EMI Control: Balances EMI containment and cost.
Space Efficiency: Generally smaller footprint compared to fully shielded versions.
Typical Trade-Offs:
Less EMI Protection: Not as robust as fully shielded inductors.

Shielded Inductor

A shielded coil refers to a coil that is covered by metal shield material such as a magnetic core. Shielded coils are typically used in electronic circuits for energy storage and electromagnetic interference suppression. Compared to unshielded and semi-shielded coils, shielded coils have better electromagnetic interference suppression capabilities and can effectively prevent external electromagnetic interference from affecting the circuit. However, due to the use of shield material, the manufacturing costs of shielded coils are the highest among the four types.
Why Choose It?
Superior EMI Suppression: Ideal when interference must be minimized.
High Performance: Maintains stable inductance under higher currents.
Typical Trade-Offs:
Higher Cost & Size: Due to added shielding materials and construction.

Air Core Coil

Why Choose It?
No Core Losses: Suitable for high-frequency RF applications where core materials might distort the signal.
Excellent Q Factor: Offers lower losses at very high frequencies.
Typical Trade-Offs:
Bulky Construction: Can be physically larger for the same inductance.
Lower Inductance Values: Air core limits maximum achievable inductance compared to ferrite or alloy.

Chip Bead

Why Choose It?
Simple EMI Filtering: Primarily used to reduce high-frequency noise in data or power lines.
Easy to Implement: Designed to be placed in series with the line for effective noise suppression.
Typical Trade-Offs:
Limited Inductance Range: Not for major energy storage; best for noise cleanup.
Reduced Power Handling: Generally not for high-current paths.

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What are the common types of surface mount inductors? | High Voltage Power Inductors Manufacturer | Coilmaster Electronics

Located in Taiwan since 1995, Coilmaster Electronics Co., Ltd. has been a manufacturer of magnetic components. Its main magnetic components include, 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 is a professional manufacturer for inductor, common mode choke, chip beads and transformer. Our vision is “Creating high-performance inductors, reducing energy loss, and contributing to sustainable” To achieve this, our engineer team is keen to design the power inductor to have better efficiency. 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.