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Flyback transformers
flyback transformer
size table
Features  
Preferential size table for flyback and similar low power custom transformers
Suitable for converters based on any flyback controller
High creepage/clearance for reinforced insulation to meet your safety requirements
RoHS compliant
 
  For detailed technical informations please request ITACOIL GENERAL CATALOGUE

Flyback size table

Drawing
Layout
Power (1) Dimensions Creepage
Clearance
A B H X X1 X2 X3 Y L D
E10A 0-2W 12.5 16.3 13.6 3.0 9.0 5.0 -- 12.2 2.5 Ø 0.5 >7
E12A 2-5W 14.2 20.6 10.3 3.5 2.72 10.5 10.88 15.35 2.5 Ø 0.6 >6
E13A 4-8W 14.8 19.3 14.7 3.8 11.4 -- -- 12.5 3.5 Ø 0.5 >6
E16A 7-14W 17.3 19.3 14.2 3.2 12.8 -- -- 15.5 2.8 Ø 0.7 >6
E20A 10-20W 21.7 25.6 16.6 2.5 17.5 15.0 5.0 20.0 2.5 0.5 >6
E25A 20-40W 26.7 19.4 31.7 5.0 20.0 -- -- 12.5 3.5 0.64 >6
E25B 40-60W 26.9 33.2 21.7 5.0 20.0 -- -- 26.8 3.0 0.64 >7
E25C 20-40W 28.4 33.7 20.0 5.0 20.0 3.5 21.0 25.4 3.5 Ø 0.80 >7




Drawing E10A ( file 3D .stp) Drawing E12A ( file 3D .stp)







Drawing E13A ( file 3D .stp) drawing E16A ( file 3D .stp)





Drawing E20A ( file 3D .stp) drawing E25A ( file 3D .stp)





Drawing E25B ( file 3D .stp) Drawing E25C ( file 3D .stp)



pin layout bottom view

(1) For reference only; the actual power depends on the design features.
(2) Not to be connected.

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