JQH – Standard and custom electromagnetic solutions

JQH is a leading supplier in the electromagnetic components, providing industry standard and customised design electromagnetic components, power supplies and specialised transformers.

About JQH:

Shenzhen JingQuanHua Technology Co., Ltd. was originally established as JingQuanHua Electronics in 1996 in Shenzhen, China. The company is recognized as one of China’s top 100 electronic component enterprises, specializing in the research, development, production, and service of magnetic integrated devices and power products.

Guided by the philosophy of "Respect for life, dedication to products," JingQuanHua collaborates with partners and customers to develop innovative electronic solutions that enhance the quality of life. Its products are designed to make life safer, healthier, and more environmentally friendly.

Committed to shaping a brighter and more sustainable future, JingQuanHua offers high-quality magnetic integration and power solutions tailored for consumer electronics, clean energy, renewable energy vehicles, and other applications that contribute to improving human life.

All products comply with international standards, including CCC, UL, and CE certifications. The company also provides customisable solutions to meet specific customer performance requirements.

Key facts

Company
JQH - Shenzen JingQuanHua Electronics Co. Ltd
Headquarters
China
Acal BFi partner since
2024
Technologies
Common mode chokes
Magnetic inductors
Switch-mode transformers
Low frequency laminated transformers
Current transformers
EMI filters

Product ranges by JQH – Shenzen JingQuanHua Electronics Co. Ltd

Vertical winding electric choke
Common mode chokes
Vertical winding electric choke

Designed specifically to meet the demands of renewable energy devices, the JQH vertical winding electric choke is fully compliant with international standards, including CCC, UL, and CE certifications.

Vertical winding common mode choke
Common mode chokes
Vertical winding common mode choke

The JQH vertical winding common mode choke is strictly designed to meet the standards for switching power supplies, ensuring reliability and high performance.

Potting choke
Common mode chokes
Potting choke

The JQH potting choke is designed for use in renewable energy systems, including photovoltaic inverters and energy storage equipment.

Choke assembly
Common mode chokes
Choke assembly

Designed for use in renewable energy applications such as photovoltaic inverters and energy storage equipment, the JQH choke assembly ensures compatibility and performance in these advanced energy systems.

Choke assembly
Common mode chokes
Choke assembly

A key component in renewable energy systems – specifically in photovoltaic (PV) inverters and energy storage equipment.

Boost inductor
Magnetic inductors
Boost inductor

The JQH boost inductor is a key component often used in hybrid vehicle drive motor modules.

R-type filter inductor
Magnetic inductors
R-type filter inductor

The JQH R-type filter inductor is used in filter modules for electric and hybrid vehicles

EMI filter components
EMI filters
EMI filter components

The JQH EMI and L-C filter components are designed for use in MCU modules of electric and hybrid vehicles.

Magnetic inductors
Magnetic inductors
Magnetic inductors

JingQuanHua provides magnetic component products such as differential mode inductors, common mode inductors, boost inductors, and inverter inductors for EV applications.

Low Frequency Transformers
Low frequency laminated transformers
Low Frequency Transformers

JQH’s product portfolio includes high- and low-frequency transformers, power adapters, open-frame power supplies, PV inverters, smart digital power supplies, three-phase transformers, and specialised reactors.

Switch-mode Transformer
Switch-mode transformers
Switch-mode Transformer

Engineered for switching power supply standards, the JQH planar transformer offers a compact, low-profile design, with customisable options to meet performance requirements.

Current transformers
Current transformers
Current transformers

Compact and efficient, the JQH high-voltage transformer features water-cooled heat dissipation, a reliable potted design, and customisable, fast delivery options.

Contact us

To request further information and availability please feel free to contact us right away.Or just fill out our contact form for a member of the sales team to respond to you.

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We support JQH – Shenzen JingQuanHua Electronics Co. Ltd in these technologies

Common mode chokes

We offer a huge variation of products from high permeable ferrite or nanocrystalline cores to highly compact ferrite-based CMC, to customised chokes for any currents. If we do not have exactly what you need, we can offer a fully bespoke solution depending on the technical design parameters. Explore technology

Magnetic inductors

Our incredibly broad offer ranges from power handling (from few watts up to hundreds of kW), frequency of operations (from 50Hz up to GHz), mechanical forms going from ceramic RF inductors, SMD power inductors, and toroidal to complex structures made of blocks and cylinders. We work in partnership with world-leading technology suppliers, meaning that we can work with our customers to offer bespoke solutions according to the technical application design.

Explore technology

Switch-mode transformers

Our selection includes standard products suitable for various applications, and we also provide customized solutions tailored to specific design requirements, including circuit topology, frequency, and core material. Partnering with semiconductor engineers ensures our transformers are perfectly matched with controller specifications, optimizing functionality and efficiency. Explore technology

Low frequency laminated transformers

We offer three different classes of products within this technology: encapsulated transformer for PCB applications, typically in the range of few VA (0,6 up to 60VA), toroidal transformers, and EI form factor high power transformers (single-phase and tri-phase). Explore technology

Current transformers

Our current transformers efficiently convert primary currents into measurable secondary signals for AC measurement, supporting frequencies up to 20kHz. Suitable for applications combining DC and AC currents, our products are designed with advanced nanocrystalline soft magnetic cores. We customize solutions for applications in ground fault interruption, grid monitoring, and renewable energy systems. Explore technology

EMI filters

Our EMI filters, integrating magnetic inductors and capacitors in a metal box, reduce electromagnetic interference in AC and DC power lines. Available in various configurations, they are essential for applications in power supplies, medical equipment, and military systems, ensuring reliable performance across diverse settings. Explore technology

Magnetic Products

The Magnetic Products Technology Centre is at the forefront of our solution led approach for applications that require customised cores and components, driving our commitment to developing an enhanced technological future together.

Over the last 25 years, we have grown our expertise in the design-led customisation of magnetic components. With the largest team of technical support specialists, the Magnetic Products Technology Centre is at the forefront of magnetic based technological advancements. Our team design and manufacture magnetic components including transformers, inductors, and even cores to meet the technical and commercial aspects of your project, whether you are in design or production.

Explore our Technology Centre