PCB Mounted Current Transformer: Usage Methods and Product Guide

With the increasing demand for accurate current measurement in power electronics, industrial equipment, and renewable energy systems, reliable current sensing components have become essential for modern electrical applications. A PCB mounted current transformer is a compact current measurement device designed for direct installation on printed circuit boards, providing stable and precise current conversion for various electronic systems.

Compared with traditional current transformers, a PCB mounted current transformer offers advantages such as space-saving design, easy integration, high accuracy, excellent insulation performance, and reliable operation. It is widely used in energy meters, circuit protection systems, motor control equipment, AC EV chargers, and other applications requiring efficient current monitoring.

What Is PCB Mounted Current Transformer?

A PCB mounted current transformer is a specialized type of current transformer designed to be mounted directly onto a printed circuit board. It uses electromagnetic induction technology to convert a high primary current into a proportional secondary current signal, allowing electronic systems to perform accurate measurement, monitoring, and protection.

The transformer consists of a magnetic core, primary winding, secondary winding, and protective housing. By adopting an advanced ultracrystalline core material, the PCB mounted current transformer achieves excellent magnetic performance, low measurement error, and stable output characteristics.

The MLPC-2141 PCB-mounted Type current transformer is designed for applications requiring high precision and reliable current sensing. It supports both AC measurement and DC measurement versions with a special double-core structure, making it suitable for a wide range of power and electronic systems.

PCB Mounted Current Transformer Specifications

The performance of a PCB mounted current transformer depends on parameters such as rated current, turns ratio, accuracy class, insulation capability, and operating conditions.

How to Use PCB Mounted Current Transformer?

Proper installation and operation are important to maintain the accuracy and reliability of a PCB mounted current transformer.

Before installation, users should select the suitable model according to the required primary current, output characteristics, accuracy class, and application environment. For systems requiring higher measurement accuracy, a precision current transformer can provide more stable and precise current conversion performance.

During installation, the transformer should be mounted on the designated PCB position and securely soldered to ensure reliable electrical connection. The primary conductor passes through the inner hole of the transformer, allowing current detection without complicated wiring structures.

The large inner hole design provides flexibility for different cable sizes and bus bar applications, making the PCB mounted current transformer easier to integrate into various electrical systems.

PCB Mounted Current Transformer Installation Guide

The PCB mounting structure allows this current transformer to be directly integrated into electronic equipment, reducing installation space and improving production efficiency.

When installing a PCB mounted current transformer, users should ensure that the rated current range matches the application requirements. Incorrect selection may affect measurement accuracy or product performance.

The epoxy resin encapsulation provides enhanced insulation protection, while the flame-retardant PBT housing improves mechanical strength and safety performance.

Main Features of PCB Mounted Current Transformer

Compact Design of PCB Mounted Current Transformer

The compact structure of the PCB mounted current transformer allows direct installation on circuit boards, helping manufacturers reduce equipment size and simplify circuit design.

Its PCB mounting method improves assembly efficiency and provides better integration compared with conventional current measurement solutions.

High Accuracy Measurement Performance of PCB Mounted Current Transformer

The use of ultracrystalline magnetic materials enables excellent linearity and measurement stability. The product supports accuracy classes of 0.1, 0.2, and 0.5, making it suitable for applications requiring precise current monitoring.

A high-quality PCB mounted current transformer provides consistent output performance under different operating conditions and helps improve the reliability of electrical measurement systems.

Strong Insulation and Environmental Protection of PCB Mounted Current Transformer

The transformer is encapsulated with epoxy resin, providing:

These features allow the PCB mounted current transformer to maintain stable operation in industrial and electronic applications.

AC and DC Measurement Capability of PCB Mounted Current Transformer

Different application environments require different measurement methods. The PCB mounted current transformer provides solutions for both AC and DC current measurement.

For DC applications, the special double-core structure helps reduce the impact of DC components and improves measurement reliability. The AC measurement capacity can reach 20% higher than the rated current, while DC measurement capacity can achieve more than 75% of rated AC current.

Applications of PCB Mounted Current Transformer

The compact design and high accuracy of the PCB mounted current transformer make it suitable for many industries.

With flexible specifications and stable performance, this product meets the requirements of modern electrical and electronic equipment.

How to Choose a PCB Mounted Current Transformer Supplier?

Choosing a professional PCB mounted current transformer Supplier is important for ensuring product quality and long-term application performance.

A reliable supplier should provide:

• Advanced manufacturing technology
• Strict quality control procedures
• Customized product solutions
• Stable production capacity
• Professional technical support

Shanghai Malio Industrial Ltd., headquartered in Shanghai, China, specializes in metering components and magnetic materials. Through years of dedicated development, Malio has evolved into an industrial chain provider integrating design, manufacturing, and trading operations.

The company provides comprehensive solutions for customers in power electricity and electronics, industrial equipment, precision instruments, telecommunication, wind power, solar energy, and EV industries. With professional experience in magnetic components and measurement solutions, Shanghai Malio Industrial Ltd. is committed to supplying high-quality PCB mounted current transformer products with excellent accuracy, reliability, and customization capability.

Contact Shanghai Malio Industrial Ltd. today to get professional support and customized current transformer solutions for your applications.

FAQs About PCB Mounted Current Transformer

What is a PCB mounted current transformer?

A PCB mounted current transformer is a compact current sensing component designed to be directly installed on printed circuit boards. It converts primary current into a measurable secondary signal for monitoring and protection.

What applications use PCB mounted current transformer?

A PCB mounted current transformer is widely used in energy meters, circuit protection systems, motor control equipment, AC EV chargers, solar power systems, and industrial electronics.

What accuracy levels are available for this product?

The product supports accuracy classes of 0.1, 0.2, and 0.5, meeting different requirements for precision current measurement.

Can PCB mounted current transformer measure DC current?

Yes. The DC version adopts a special double-core structure that improves resistance to DC component interference and supports DC current measurement applications.

How to select a PCB mounted current transformer Supplier?

A qualified PCB mounted current transformer Supplier should have strong manufacturing capability, strict quality control, customization experience, and professional technical support.

What is the difference between a Current Transformer and a PCB mounted current transformer?

A traditional Current Transformer is generally used in power systems, while a PCB mounted current transformer is designed specifically for electronic devices with direct PCB installation, compact size, and easy integration.