EFD20 High Frequency Transformer with Customized Voltage Electrical Isolation and Compact PCB Mount

EFD20 high frequency transformer is designed for switching power supply circuits, supporting electrical isolation as well as step-up and step-down voltage conversion. Adopting EFD20 ferrite core structure, this transformer delivers stable performance under high frequency working conditions.

It is wound with high-quality enameled wire and built with reliable insulation material to ensure safe isolation between primary and secondary sides. Compact size fits SMT or through-hole assembly options, suitable for various compact power supply designs.

• EFD20 core design offers low core loss at high frequency, helping improve power conversion efficiency
• Good electrical isolation property effectively blocks interference and enhances circuit safety
• Flexible winding configuration supports customized turns ratio to meet different step-up and step-down requirements
• Stable magnetic characteristics reduce operating temperature rise
• Compact structure saves PCB space and supports mass automated production
• Can be made to comply with RoHS and relevant safety standards

Mainly applied in switching power supplies, AC-DC and DC-DC power modules. Widely used for:

• Power adapters
• LED drive power supplies
• Industrial control power boards
• Home appliance power units
• Battery chargers
• Medical low-voltage power supply
• IoT device power
• Monitoring equipment and other circuits needing voltage transformation and electrical isolation