EI 28 Transformer

Super ei 28 transformer sold to all over the world Feneng company,the one of the largest professional manufacturers of Ei28 transformer in China, welcome ! High quality Ei28 transformer with the detail parameter Feneng factory have capable to customize Ei28 transformer for buyers. Show us your...
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Product Details

Super ei 28 transformer sold to all over the world

There are four main reasons for the noise of switching power transformer: process problem, loop problem, core problem and load problem.

Transformer process problem
Dip paint drying is not in place, leading to the magnetic core is not strong enough to cause mechanical vibration and sound;
The length of the air gap is not suitable, which leads to the instability of the transformer and the noise.
The wire bag is not tightly wound, which may also cause noise;

There is air gap in the magnetic core assembly, which will cause air vibration and sound at high frequency (if the transformer is fully immersed in vacuum, it will generally not make sound).

Quick Details

Place of origin:Guangdong,China 

Brand Name:Feieng

Model Number:EE28

Usage:High Frequency


Coil Structure:square

Coil Number:Autotransformer


Magnetic core:EE

Phase number:Single

Packing deta…Standard export carton outsid…

Coil structure:square

Voltage:DC 12V,AC 110V,or customer



Working freque…20KHz-500KHz

Storage temper:25℃to+85℃

Packaging &Delivery

Packaging Details

Standard export carton

Delivery Time

5-7 working days after payment confirmed

High quality Ei28 transformer with  the detail parameter







How to contact us ?
 Lily Hu(Sales manager)

 WhatsApp/WeChat: +86 13437828901