EF25 single output switching power supply transformer  

The EF25 is a type of transformer commonly used in single output switching power supplies. It is designed to convert AC voltage to DC voltage by using high-frequency switching techniques. The EF25 transformer is typically used in applications that require a high level of efficiency, low noise, and small size. Its compact size makes it ideal for use in portable electronic devices such as laptops, smartphones, and tablets. The EF25 transformer is known for its reliability and durability, making it a popular choice for power supply designers.