ER/EC type high-frequency transformerDetailed product description：

EC/ER type transformers are basic ferrite cores widely used in switching power supplies and various electronic circuits. The oscillation modes include full bridge, half bridge, single ended, resonant, push-pull circuits, etc. They have excellent material properties and are suitable for typical transformer structures. The cylindrical center column of the EC/ER core makes winding easier and increases the cross-sectional area of the winding, which can increase output power. They are suitable for various switching power supply transformers and blocking coils. The models of EC transformers include EC2820, EC3542, EC4042, EC4950, EC5345, EC70, etc.

The following table lists the external dimensions and output power of some products.

serial number	Specification	Dimensions mm			Reference VA		weight
		A	B	C	f=50KHz	f=100KHz	Reference value g
one	EC-28	twenty-eight	thirty-four	thirty	forty-two	fifty-eight	thirty-five
two	EC-35	thirty-five	forty-six	twenty-nine	one hundred	one hundred and fifty	seventy-eight
three	EC-40	forty	forty-seven	thirty-two	one hundred and eighty	two hundred and ninety	one hundred and ten
four	EC-42	forty-two	forty-seven	forty-one	two hundred and forty	three hundred and eighty	one hundred and twenty-five
five	EC-49	forty-nine	fifty-eight	fifty-three	six hundred and fifty	one thousand	one hundred and ninety-one
The above data is for reference only.

The maximum output power may vary depending on the characteristics of the magnetic material and the operating frequency. The data in the table is for reference only.
Test conditions: 1KHz/1V, withstand voltage AC2000V, insulation resistance: DC500V ≥ 200M Ω.