The PQ4219 transformer is a versatile and high-performance magnetic component widely used in modern power electronics. Its unique geometry and optimized core design make it ideal for applications requiring high power density, excellent thermal performance, and low electromagnetic interference (EMI). At Trafopsu, we provide PQ4219 transformers built with premium materials and precision engineering to meet the rigorous demands of today's electronic systems.
The PQ4219 is part of the PQ series of ferrite cores, designed specifically for switch-mode power supply (SMPS) topologies. It offers an efficient winding area and low core loss, making it suitable for high-frequency operations. Some of its standout features include:
Compact and efficient design – Allows for high power output in a relatively small footprint.
Reduced leakage inductance – Thanks to its symmetrical shape and optimized core structure.
High-frequency operation – Supports switching frequencies typically ranging from 50kHz to 500kHz or more.
Excellent thermal management – Facilitates better heat dissipation, especially in enclosed systems.
The PQ4219 transformer is commonly used in various applications across multiple industries. These include:
Switch Mode Power Supplies (SMPS)
Used in industrial, medical, and consumer electronics, PQ4219 helps deliver stable and efficient power conversion.
Electric Vehicle (EV) Chargers and On-Board Chargers (OBC)
Its compact size and high efficiency make it an ideal choice for EV power electronics.
Battery Chargers and Power Inverters
Capable of handling medium to high power levels, the PQ4219 is well-suited for battery-powered systems.
Uninterruptible Power Supplies (UPS)
Ensures reliable performance and long-term stability in backup power systems.
LED Lighting Drivers
Provides efficient current control for high-power LED applications.
At Trafopsu, we offer PQ4219 transformers using a wide selection of ferrite materials from global market leaders such as Ferroxcube, DMEGC and Magnetics. Our engineering team works closely with customers to determine the optimal material based on specific performance, cost, and frequency requirements. Whether your priority is minimal core loss, higher saturation flux density, or cost efficiency, we can guide you toward the best solution.
In addition to standard configurations, we also provide customized winding designs, insulation systems, and mounting options to match your exact technical needs.
Choosing the right transformer is crucial to the performance and reliability of your end product. That’s why our experienced engineering team offers full support—from core material selection to thermal modeling and EMI optimization. All our PQ4219 transformers undergo rigorous quality checks and meet international safety and performance standards.
Contact us today to learn more about how our PQ4219 transformer solutions can enhance your next power supply project. Let Trafopsu help you achieve the perfect balance between performance, efficiency, and cost.