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High Current SMD Coupled Inductor

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Payment Type: L/C,T/T
Min. Order: 5000 Piece/Pieces
Transportation: Ocean,Land,Air,Express
Port: Xi'an,Shanghai

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SMD inductors

Description

Product Attributes

Brand: FERRTX

Origin: China

Certification: RoHS/ISO/UL/CE/IATF16949/CNAS

Place Of Origin: China

Inductance Range: 3.9 μH to 100 μH (customizable)

Rated Current: 1.5A~50A

Direct Current Resistance (DCR): 1.6mΩ~280mΩ（max）

Operating Temperature: -50°C to +150°C (including self-heating)

Packaging Specifications: 1208 (12.5 × 8.0 mm), 1210 (12.5 × 10.5 mm), etc. (customizable)

Certification Standards: RoHS、REACH、AEC-Q200、UL 94 V-0

Packaging & Delivery

Selling Units:	Piece/Pieces
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Supply Ability & Additional Information

Transportation: Ocean,Land,Air,Express

Place of Origin: China

Supply Ability: 2~8weeks

Certificate: RoHS/ISO/UL/CE/IATF16949/CNAS

Port: Xi'an,Shanghai

Payment Type: L/C,T/T

Product Description

What Is High Current SMD Coupled Inductor？

The High Current SMD Coupled Inductor is a new type of passive electronic component that combines the miniaturization and surface-mount advantages of SMD Inductor with the high-current and high-power handling capabilities of Power Inductor. It features an integrated shielded surface-mount package design that combines two windings within a single magnetic shielding structure. Compared to traditional discrete inductors, it not only significantly saves PCB layout space and reduces assembly costs but also, thanks to its excellent coupling characteristics and current-carrying capacity, serves as a core energy storage and filtering component for high-power-density electronic devices. It is widely compatible with various power supply systems that have stringent requirements for space, efficiency, and anti-interference performance, seamlessly combining the convenient mounting of SMD inductors with the power performance advantages of power inductors.

Core Advantages

1. High Current Carrying Capacity, Suitable for High-Power Applications

As a surface-mount component that combines the core performance characteristics of a power inductor, this product utilizes a high-permeability metal powder core (ferrosilicon-aluminum, molybdenum-permidotite alloy) and a flat-wire winding process to effectively reduce the skin effect. Its DC resistance (DCR) can be as low as 1.6 mΩ, and the saturation current can reach up to 50 A. It maintains stable temperature rise and current, ensuring long-term stable operation under high-current conditions. This completely resolves the pain points of ordinary SMD inductors—such as weak current-carrying capacity and susceptibility to saturation—and meets the core requirements of power inductors for high power and high current.

2. Surface-mount packaging design, suitable for automated production

Building on the core advantages of SMD inductors in surface-mount technology (SMT), these inductors feature compact surface-mount packages (such as 1208 and 1210 sizes) that are small in volume and thin in profile, making them suitable for high-density PCB layouts. They can be directly integrated into automated placement and reflow soldering processes without the need for additional manual soldering, significantly improving production efficiency and reducing labor costs. This makes them perfectly suited for mass production scenarios in consumer electronics and automotive electronics, delivering the dual advantages of “power-grade performance + SMT convenience.”

3. High Coupling Efficiency, Low Interference, and Enhanced Stability

Compared to standard SMD inductors and discrete power inductors, this product features a closed magnetic circuit design with an optimized coupling coefficient (K-value). It offers extremely low leakage inductance (as low as 1% of the nominal inductance value), effectively suppressing electromagnetic interference (EMI) and stray magnetic fields to minimize interference with surrounding Electronic Components; It also offers excellent ripple suppression capabilities. In circuit topologies such as SEPIC, Zeta, and flyback, it enables more efficient energy conversion, enhancing the stability and reliability of the entire power supply system.

4. Wide Temperature Range, Compliant and Durable

Combining the miniaturization of SMD inductors with the environmental resilience of power inductors, the operating temperature range spans -50°C to +150°C (including self-heating), making it suitable for extreme industrial environments and high-temperature automotive applications; All products comply with RoHS, REACH, and Halogen-Free standards and are AEC-Q200 certified. The packaging material uses UL 94 V-0 flame-retardant epoxy resin, offering moisture resistance, shock resistance, and aging resistance, with a service life far exceeding that of ordinary surface-mount inductors and conventional power inductor.

5. Flexible Adaptability, Multi-Scenario Compatibility

Supports various connection methods including series, parallel, and coupling, and allows flexible switching between inductor mode (Boost/Coupling) and Transformer mode (Flyback/SEPIC). It can function as a power inductor for energy storage, filtering, and current surge suppression; as an SMD inductor for high-frequency signal processing; or as a common-mode choke or 1:1 transformer, meeting the requirements of various circuit topologies with exceptional versatility.

Application

Combining the convenient mounting features of SMD inductors with the high power handling capacity of power inductors, this product is widely used in various high-current, high-power-density electronic devices. Key applications include:

- Automotive Electronics: On-board DC-DC converters, LED backlight drivers, battery management systems (BMS), and engine control modules. Designed to withstand high-temperature and high-vibration automotive environments, it balances the space-saving advantages of surface-mount packaging with the high-current requirements of power inductors;

- Industrial Control: PLCs, servo drives, variable frequency drives, and industrial power modules. By leveraging high coupling efficiency and low interference characteristics, this product enhances the power supply stability of industrial equipment, replacing the traditional combination of discrete SMD inductors and power inductors;

- Consumer Electronics: High-end laptops, gaming consoles, and fast-charging adapters. The miniaturized surface-mount packaging saves internal space, while the power inductor-level current-carrying capacity meets the high-power demands of fast-charging scenarios;

- New Energy Sector: Photovoltaic inverters, energy storage devices, and constant-current LED lighting drivers. Compatible with circuit topologies such as SEPIC and Zeta, these components enable efficient energy conversion and filtering while balancing the convenience of SMD components with the reliability of power inductors;

- Other Applications: Communication equipment (5G base stations, routers), medical devices, and smart wearable devices. These can be used as common-mode chokes or Transformers, flexibly adapting to different circuit requirements and replacing traditional combinations of surface-mount inductors and power inductors.

Why Choose Our Coupled Inductors?

Proven magnetic design expertise
Stable ferrite materials for long-term reliability
Flexible customization options for inductance and current ratings
Suitable for integration with other power components such as ferrite bead inductor solutions

Our SMD coupled inductors are manufactured to meet the evolving needs of high-density power electronics, delivering consistent performance across industrial, automotive, and communication systems.

Custom Design Support

If your application requires specific inductance values, current ratings, or package dimensions, our engineering team can provide tailored solutions to match your design goals.Contact us today to request datasheets, samples, or custom coupled inductor designs.

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