EF Transformer

EF transformer is the one of the high frequency transformers, it adopt ee19 bobbin and ferrite core with small size, cheap price,high reliablity,EE type transformer is a basic type ferrite core with stable performance, low cost and high current.
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Product Details

The super EF transformer is one of the flyback transfomers & high frequency transformers, which with winding is convenient, the price is moderate, the characteristics of high reliability, ef transformer is basic ferrite core, they are widely Used for mobile phone charger, dc-dc converter, drive transformer, digital camera, portable switching power charger, controler etc,  suitable for all kinds of switch power supply transformer and choke coils.

The specifications

Work frequency :  20kHZ to 500kHZ
Output power : 4 to 12w
Work temperature : -40℃ to+125℃Storage temperature : -25℃ to +85℃
Storage humidity : 30 to 95%Type  :   vertical
Style: autotransformerPhase : Single
Coil structure : toroidal

Switching Power Supply Transformer manufacturers


transformer application  



Do you a factory or a trading company?

Answer: We are a leading transformer factory in China. CEO is a top engineer, used to work in Bourns(A famouse US-funded enterprise) over 20 years. We mianly produce high frequency transformer, inductor coil, , common-mode choke, driver etc.

Where is your factory located?

 A: Our factory is located in Guangzhou City, Guangdong province, China. Warmly welcome to visit us!

How about the price? Can you make it cheaper?

A: All of our product produce based on US-funded enterprise. Surely our quality is far higher than Chinese-funded enterprise, but our prices are cheaper over 25% than US-funded enterprise. Choose us! Costs reduce greatly. you can gain greater advantages in the market.

 Do you offer prototype production?What is the lead time?

 A: We can prepare both sample and mass production. The fastest lead time for double-sided samples is 36 hours. PCBA prototype can be 48 hours including both BOM sourcing and SMT.