What is a PCB Mount Transformer?

What is a PCB Mount Transformer?

The PCB Mount Transformer is a transformer specially designed for printed circuit boards and is located on the surface of the circuit board to provide any voltage or current conversion functions that may be required. These devices have a variety of different properties and sizes, ensuring that their variety can be selected for any imaginable product. The transformer used in the PCB must be compact, and because of this, the transformer does not have a complicated cooling mechanism, which sometimes has to be incorporated into other transformer designs. The transformer used for the printed circuit board must be compact, so the transformer does not have a complicated cooling mechanism. If you need a cooling mechanism, use another transformer design.

How does a PCB Mount Transformer work?

Transformers play a vital role in alternating current. If there is no transformer, is no way to increase or decrease voltage of alternating current, and normal use and long-distance transmission are impossible. PCB Mount Transformer the main function is to convert electrical energy from one circuit to another. In fact, it is used to reduce or increase the voltage or current of the signal.

The types of PCB Mount Transformer

Classified by application

1. Power PCB mounting transformers . Provide power for power lighting devices and electronic appliances.
2. Frequency-selective transformer. Select a certain range of operating frequency for certain circuits of electronic appliances, such as the intermediate frequency transformer in the receiver.
3. Coupling PCB mounting transformers . Used for coupling signals and matching impedances, such as input transformers and output transformers in audio equipment, line-to-line transformers in broadcasting systems, etc.
4. Isolation PCB mounting transformers . It is used to isolate the AC power supply to the ground to ensure the safety during live maintenance.
5. Audio transformer. Audio PCB transformer is a transformer working in the audio range, also known as low-frequency transformer. The operating frequency range is generally 10 ~ 20000 Hz. It is often used to change the voltage or the impedance of the load.
6. Pulse PCB transformer. It is widely used in national defense scientific research, high-tech research, civil industry and many other fields.

Classified by working frequency

1. High frequency PCB mounting transformers. Work in a higher frequency range, such as the antenna coil of a receiver.
2. Intermediate frequency PCB mounting transformers . Work in the intermediate frequency range of the receiver after frequency conversion, such as the intermediate frequency transformer of the audio tuner, the intermediate frequency voltage converter of the TV, etc.
3. Low-frequency PCB mounting transformers . Generally work in the low frequency range. Such as input transformer, output transformer, line-to-line transformer, etc.

Classified by winding

According to the winding type, it is divided into dual winding PCB mounting transformers and multi-winding PCB mounting transformers . For example, isolation transformers and transformers with single power output are mostly dual winding transformers; while line transformers, audio and color TV power transformers, etc., have multiple power outputs. It is a multi-winding transformer.

Classified by magnetic material

1. Iron core PCB mounting transformers
2. Ferrite core PCB mounting transformers

Classified by moisture-proof method

1. Open frame PCB mounting transformers
2. Encapsulated PCB mounting transformers

The application of PCB Mount transformer

In comparison with large-scale transformers, PCB-mounted transformers are not only smaller in size but also save a lot of money, so they are widely used. Especially since electronic technology has been rapidly evolving, PCB mounting transformers have become widely adopted because they are suitable for mechanized production, have high efficiency, are inexpensive, and have a stable and reliable operation; It is widely used in industrial control, process control, medical equipment, instrumentation, aerospace, automobile and ship, network communication and many other fields.

PCB Mount Transformer manufacturing process flow

Unicreed professional manufacture Encapsulated PCB transformer, Open Frame PCB transformer, Toroidal PCB transformer and High Frequency PCB transformer. As an example, below is the manufacturing process flow of our Encapsulated PCB transformer.

PCB Mount Transformer User Manual

There are two main installation methods for PCB mounting transformers: Through Hole Mounting and Surface Mounting.

Through Hole Mounting:

The through-hole mounted transformer on the printed circuit board is equipped with a connector that penetrates the circuit board. This makes it possible to use multilayer printed circuit boards and other applications. Generally, the through-hole mounting method is a less compact and outdated method of mounting components on a printed circuit board than directly mounting on the surface. For some applications and specific components, it is still the best method of mounting on a printed circuit board. But you will find that most of the transformer components on the printed circuit board are surface mounted. For old equipment, after disassembling it, you can see a printed circuit board with a large number of through-hole mounting components.

Surface Mounting：

Surface mounting provides the possibility for a more compact design. The exposed PCB transformer has no pins or other components penetrating the printed circuit board.

All transformers generate a certain degree of heat when they work, and the PCB transformer limits the maximum working environment temperature. It is safe to operate the transformer under this condition. Exceeding this value may cause malfunctions, circuit damage and other problems. Because PCB transformers do not have liquid cooling or other complicated cooling methods, we must keep in mind the maximum operating temperature.

PCB Mount Transformer manufacturing Company in China

Unicreed have more than 13 years experiences in manufacture PCB Mount Transformer, if you are looking for PCB Mount Transformer manufacturing Company in China pls feel free contact us. Customized PCB Mounting Transformer service also available for us.