EE Ferrite Core High Frequency Transformer

Providing with quality and standard customer-made electronic and passive components ee ferrite core high frequency transformer and solution products, Fullstar Electronics is a leading ee ferrite core high frequency transformer manufacturer and supplier in China. welcome to wholesale electronics ee ferrite core high frequency transformer from our factory.

vertical EE/EEL series high-frequency transformer, one of the core power components in switch-mode power supplies (SMPS).

✨ Core Structure & Visual Features

1. Core & Bobbin: It adopts an EE/EEL-type ferrite core with a vertical through-hole pin bobbin design. As shown in the image, the black insulating bobbin and straight through-hole pins can be directly soldered onto a PCB, ensuring easy installation and high stability.
2. Windings & Insulation: The yellow section represents the windings wrapped in insulating tape, typically made of enameled copper wire or Litz wire. The tape and bobbin provide electrical isolation between primary and secondary windings to meet safety compliance requirements.

🛠️ Key Performance Characteristics

• High-Frequency Compatibility: Designed specifically for switch-mode power supplies, it typically operates at frequencies ranging from 20kHz to 500kHz. Compared to traditional line-frequency transformers, it features a much smaller size and significantly higher power density.
• Low-Loss Design: It uses a manganese-zinc ferrite core, which exhibits extremely low eddy current loss at high frequencies. Combined with an optimized winding structure, it effectively reduces core loss and copper loss, improving power conversion efficiency.
• Safety & Reliability: The windings are designed with sufficient creepage distance and insulation layers to withstand high-voltage tests. It also has excellent thermal stability, operating reliably over a wide temperature range of -10°C to +95°C.
• Wide Range of Applications: Commonly used in adapter power supplies, chargers, small home appliance power supplies, industrial control equipment, LED drivers, and other switch-mode power supply scenarios.

📌 Key Differences from Conventional Line-Frequency Transformers

The specific model (e.g., EEL16, EE22) of this type of transformer is determined by the core dimensions. Larger core sizes support higher power handling. 

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