Transformer bobbins
  • EI 1PH bobbins from EI30 to EI270.
  • Material grade as standard is 155ºC Class F operating temperature
  • Many sizes available with shrouds/covers for winding protection
  • Pre pinning for automated winding / PCB mounting available
  • Other materials such as UL94 V0 and high temperature types can be supplied.

Bobbin Materials

Class F RP3 (standard supply)

Class H RP7-L (Arnite AV3620S)

Class H RP7 (Rynite FR530L)

Additional Bobbin Information

Bobbin Flange Styles

Bobbin Terminal Insert Details

Choose from the sizes listed below to see bobbins available.

Choose from the links below to see bobbin types available for that lamination.
(PDF format)

EI30EI33EI38EI40EI42
EI48EI54EI57EI60EI66
EI68EI75EI78EI84EI96
EI108EI114EI120EI126EI135
EI150EI180EI192EI240EI270