FS28-420 datasheet by Triad Magnetics

FS28-420 Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for optimal performance?
  Triad Magnetics recommends a symmetrical PCB layout with the transformer centered on the board, and the primary and secondary windings routed away from each other to minimize electromagnetic interference (EMI).
• Can I use this transformer in a high-temperature environment?
  The FS28-420 is rated for operation up to 130°C, but derating may be necessary for temperatures above 100°C. Consult Triad Magnetics' application notes for guidance on high-temperature operation.
• How do I ensure proper insulation and safety in my design?
  Follow Triad Magnetics' guidelines for creepage and clearance distances, and ensure that the transformer is properly insulated from the PCB and other components. Consult relevant safety standards, such as UL 60950-1, for additional guidance.
• What is the maximum voltage rating for the primary and secondary windings?
  The primary winding is rated for 420Vrms, and the secondary winding is rated for 28Vrms. Do not exceed these voltage ratings to avoid damage to the transformer.
• Can I use this transformer in a resonant converter topology?
  Yes, the FS28-420 is suitable for use in resonant converter topologies, such as LLC resonant converters. However, consult Triad Magnetics' application notes and simulation tools to ensure proper design and optimization.