PET Film for Flyback Transformer

PET film for flyback transformer use provides thin, dependable insulation between the primary and secondary windings, where safe separation matters most. It is wound as layer tape or used as margin and barrier tape, helping to keep the required creepage and clearance distances inside a very small space. Its uniform thickness and good insulating properties support stable performance during high-frequency switching, while its toughness lets it withstand winding tension without tearing. The film also resists moisture and common impregnating varnishes, so the finished transformer stays reliable over time. It is widely used in switch-mode power supplies, chargers, adapters, LED drivers and display power boards. Custom widths, thicknesses and samples are available for your winding line.