UU Current Transformer Filter

Key features and core advantages

Integrated design:

The UU current transformer filter manufactured by Haoer Factory integrates current detection and EMI filtering functions into a single component, simplifying circuit design, reducing PCB space occupation, lowering system costs, and enhancing equipment integration.

High-precision current detection:

The U-shaped closed magnetic circuit design ensures high magnetic coupling efficiency, with an error of current ratio ≤ ±1%, good linearity, and can accurately detect currents ranging from 0.1A to 100A, meeting the requirements of industrial-level measurement.

High-performance common-mode interference suppression:

The ferrite core combined with symmetrical windings presents a high impedance to common-mode interference, effectively attenuating power noise, electromagnetic radiation and other interference signals, helping the equipment pass EMC certifications such as CE, FCC, and CQC.

Broadband adaptability:

The working frequency range of UU Current Transformer Filter covers 50Hz to 100MHz, balancing both the detection of industrial frequency currents and the suppression of high-frequency interference. It is suitable for a wide range of applications such as switching power supplies, frequency converters, and photovoltaic inverters.

High reliability and stability:

The closed magnetic circuit design reduces magnetic leakage, the metal clamps enhance mechanical strength, the winding is closely combined with the magnetic core without any loosening risk. The operating temperature range is -40℃ to +125℃, meeting the requirements of industrial and automotive-grade environments.

Significant cost-effectiveness:

Compared to using current transformers and common-mode inductors separately, the integrated design reduces procurement and installation costs, enhances production efficiency, and is suitable for large-scale batch applications.

Specification and model:

UU9.8 / UU10.5 / UU15.7 / UU16

The U-shaped closed magnetic core is composed of two symmetrical U-shaped manganese-zinc ferrite/nickel-zinc ferrite magnetic cores that are joined together. It is combined with the frame to form a closed magnetic circuit. It has high magnetic permeability and low magnetic resistance, which can concentrate the magnetic field and reduce magnetic leakage.

The double-winding structure consists of the main winding (primary side) and the auxiliary winding (secondary side): the main winding has fewer turns and a thicker wire diameter, and is connected in series to the measured circuit; the auxiliary winding has more turns and a thinner wire diameter, and is used for signal output and filtering. The two windings are symmetrically wound on the frame to ensure common-mode suppression and current detection accuracy.

The UU current transformer filter, with its integrated design, high-precision detection and powerful filtering capabilities, has become an ideal choice for current monitoring and EMC management in modern electronic devices. It combines practicality, economy and reliability, and is widely used in common-mode filter inductors, drive transformers, current transformers, etc.

Company strength

Guangdong Haoer Electronics Co., Ltd., a specialist manufacturer of precision magnetic components with industrial operations dating back to 2008, focuses on the production of high-frequency transformers, filters, and inductors. These components are essential for advanced applications in lighting, household appliances, photovoltaics, UPS, automotive electronics, and network communications.

The company’s production capacity is notable: multiple manufacturing sites in Foshan, a staff of over 1, 000, and an annual output of 100 million+ units. To ensure product reliability, Haoer has invested in automated manufacturing and precision testing infrastructure, and holds certifications such as CQC, UL, ISO 9000, and TS 16949.

Adhering to the tenets of innovation, quality leadership, and collaborative growth, Haoer Electronics continues to enhance its technical proficiency to address the dynamic requirements of the global electronics market.

Certificate