The PQ26/20 Ferrite Core is a popular choice for high-frequency transformer designs, particularly in Switched Mode Power Supplies (SMPS), power converters, and other power electronics. The PQ core shape is optimized to minimize core losses and maximize the available winding area, making it a preferred option for compact, high-efficiency designs.

Here’s a detailed overview of the PQ2620 Ferrite Core:

Features:

• Core Shape: PQ (Power Quality) core, which provides a larger window area for windings while maintaining a compact outer dimension
• Material: Ferrite, typically made from high permeability materials like MnZn (Manganese-Zinc) ferrite, optimized for high-frequency applications
• Applications: Ideal for high-frequency transformers in SMPS, power inverters, DC-DC converters, and other power electronic circuits
• Magnetic Performance: PQ cores are designed to offer high magnetic efficiency with low core losses, particularly at higher frequencies (up to 500 kHz or higher)
• Reduced Leakage Inductance: The shape helps reduce leakage inductance, making it suitable for high-performance designs with improved efficiency
• Thermal Efficiency: The compact design helps with thermal management, allowing it to handle moderate heat dissipation in high-power applications

Specifications:

• Core Size: PQ2620 refers to the size of the core, with the numbers generally indicating the approximate dimensions in millimeters
  • Outer Diameter: ~26 mm
  • Height: ~20 mm
• Core Material Permeability: Typically available in different permeability grades, such as 2500 µ to 10000 µ, depending on the ferrite material and application requirements
• Operating Frequency: Optimized for high-frequency operation, usually in the range of 50 kHz to 500 kHz and beyond, depending on the specific material grade
• Saturation Flux Density: Ferrite cores generally offer a saturation flux density in the range of 300 mT to 500 mT, depending on the material and operating temperature
• Loss Characteristics: Low core loss at high frequencies, making it ideal for applications where efficiency is crucial

Advantages of PQ Cores:

1. High Winding Area: The PQ core offers a large winding window relative to its overall size, allowing for more efficient winding designs that minimize copper losses.
2. Compact Design: Despite the larger window area, the PQ core has a compact overall footprint, making it ideal for space-constrained designs.
3. Improved Thermal Handling: The core shape helps with thermal management, making it suitable for applications that require moderate heat dissipation.
4. High Efficiency: Optimized for minimizing both core and copper losses, leading to improved overall transformer efficiency, especially in high-frequency applications.

Applications:

• Switched Mode Power Supplies (SMPS): The PQ2620 core is commonly used in transformers for SMPS circuits, which require efficient energy transfer at high frequencies.
• DC-DC Converters: Ideal for step-up or step-down converter designs that need compact and efficient transformers.
• Inductive Components: It is also used in inductors and other magnetic components in power electronics.
• Inverters: Suitable for use in inverter designs, especially where compact size and high-frequency operation are important.