EI 33 Transformer

Super EI 33 transformer made by Guangzhou Feineng electronic co.,ltd, EI has many series, such as, ei28 ei33 ei35 ei41 etc. this transformer use for led lighting,home appliance,PCB board, charger,power supply etc. they can adjust the inductance, power etc.
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Product Details

Super EI 33 transformer is one of the high frequency transformers

What is high frequency transformer?

1.High frequency transformer is a power transformer whose working frequency exceeds medium frequency (10kHz). It is mainly used as high frequency switching power transformer in high frequency switching power supply,also used in high frequency inverter power supply and high frequency inverter welding machine for high frequency inverter power transformer. According to the working frequency, can be divided into several levels

2.High frequency transformer is the most important component of switching power supply. The switching power supply usually adopts half bridge power conversion circuit and two switches are used when working.

Feneng, the one of the largest professional manufacturers of EI 33 transformer in China, welcome to customize ! 

Quick Details

Place of origin:Guangdong,China 

Brand Name:Feieng

Model Number:EI33

Usage:All kinds of chargers,stage light


Coil Structure:Toroidal

Coil Number:Autotransformer


Magnetic cor:El

Phase number:Single

Packing Standard export carton

Coil structure:Toroidal

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



Working frequency:20KHz-500KHz

Storage temper:­25℃to+85℃

Packaging &Delivery

Packaging Details

Standard export carton

Delivery Time

5-7 working days after payment confirmed

The frame is made of environment-friendly material, and its rare specification can be customized according to customer requirements.

Enameled wire adopts high grade pure copper polyurethane enameled wire from regular manufacturers. At present, many black-core manufacturers in the market use copper clad aluminum material to reduce costs, which has a great impact on product quality. our factory won't permit do this . 


1) the customer provides the sample, as long as it is not damaged.
2) provide detailed drawings, including winding turns, wire diameter, primary inductance, voltage resistance, adhesive paper and other detailed requirements
3) provide application conditions: input and output voltage, output power, working mode, working frequency, preferably with circuit diagram.



Material is original  PC40 material, also can be customized high guide magnetic core and other domestic first-class magnetic core manufacturers magnetic core, quality assurance, transformer any quality problems, we then all the responsibility for the problem, strict production quality requirements, all products must be all qualified inspection before shipment!



9.Company's certificate 


Quality assurance:
Genuine materials, free technical support, such as seller quality problems, full refund or free make.Product price:
According to the order quantity and winding parameters. Sample fee will be returned after batch, batch customer, free sample making and customized products will follow, please contact me before ordering