PQ3220 LLC Transformer 490uH (6+6) | 50W–200W High-Frequency Power Transformer

Product Overview

PQ3220 LLC Transformer 490uH (6+6) | 50W–200W High-Frequency Power Transformer is a high power density high-frequency transformer designed for LLC resonant converters and soft-switching power supplies.

Built on the PQ3220 core size platform (a standard magnetic core specification, not a fixed electrical model), this transformer is optimized for modern high-efficiency power designs used in servers, industrial systems, and telecom equipment.

The nominal inductance of 490uH refers to the magnetizing inductance (Lm), measured under specified test conditions, and can be fully customized based on your circuit requirements.

With a typical power range of 50W to 200W (depending on frequency, thermal conditions, and winding design), it provides an excellent balance between efficiency, size, and thermal performance.

Using a high-frequency MnZn ferrite core, the transformer achieves low core loss and improved EMI emission characteristics, helping designers meet efficiency and EMI targets more easily.

The 6+6 dual-side through-hole pin structure ensures reliable isolation, strong mechanical stability, and easy PCB integration.

Core Advantages

• Specially optimized for LLC resonant soft-switching topology, supporting high-efficiency power conversion (efficiency depends on overall system design)
  

• 50W–200W power range, magnetizing inductance (Lm) customizable based on application requirements
  

• High-performance MnZn ferrite core, low core loss and improved EMI emission characteristics

• Optimized winding and magnetic design to reduce copper and core losses under proper operating conditions
  

• Fully compatible with mainstream server power and industrial power supply designs

Typical Applications

• Server Power Supplies
  

• PC Power Adapters
  

• Industrial Switching Power Supplies
  

• LLC Resonant Converters
  

• Telecom Power Modules
  

• Network Switch Power Systems
  

• Industrial Automation Power
  

• Medical Power Modules
  

• Data Center Auxiliary Power
  

• Industrial UPS Systems
  

• High-End Audio Power Supplies
  

Technical Specifications

Structural Drawing

Customization & Procurement