"Wide range of magnetic components”

Our in-house magnetics capabilities extend to medium / high volume assemblies, testing and design to custom specifications. Sienna manufactures a variety of magnetic components such as transformers, inductors, chokes, filters, adapter chargers, power supplies and current transformers for various industrial applications.


  • Toroid hook winders
  • Linear traverse winding machines
  • Custom transformers
  • Vacuum/pressure impregnation varnishing plant
  • Polarity and turns ratio tester, impulse and hi potential tester


  • UL 0BJY2 certified insulation system
  • Traceability ensured through barcodes and batch numbers
  • PPAP/FAI process in place

Cutting-edge Magnetic Device Design Real-world Implementation of Magnetic Solutions Sustainable Magnetic Technologies for the Future Power of Magnetics in Everyday Life