Custom 300W Toroidal High Frequency Transformer with Low Leakage Inductance for Medical Grade Applications

Custom Wound Toroidal Core High Frequency Power Transformer 300W

Our custom-wound toroidal high frequency transformers combine the inherent advantages of toroidal geometry — exceptional magnetic coupling, minimal external leakage flux, and compact form factor — with precision winding techniques tailored to your exact specifications. Designed and tested for medical-grade applications per IEC 60601-1 safety requirements.

Key Features

• Ultra-Low Leakage Inductance: Toroidal core geometry achieves leakage inductance typically below 1%, dramatically reducing voltage spikes and improving converter efficiency.
• Minimal EMI Radiation: The closed magnetic path of toroidal construction inherently contains flux, minimizing radiated electromagnetic interference without additional shielding.
• Custom Core Selection: Choose from ferrite, nanocrystalline, or amorphous materials optimized for your specific frequency range and power level.
• Medical Grade Isolation: 4000VAC reinforced insulation between primary and secondary, with ≥8mm creepage distance for IEC 60601-1 compliance.
• Class H (180°C) Thermal Rating: Suitable for enclosed power supplies with limited airflow and elevated ambient temperatures.

Applications

• Medical Device Power Supplies (Patient-connected equipment)
• Laboratory Instrumentation
• High-End Audio Amplifier Power Stages
• Aerospace DC-DC Converters
• Precision Measurement Equipment
• Scientific Research Power Systems

Why Toroidal?

Compared to conventional E-core designs, toroidal transformers offer 30-50% lower leakage inductance, 15-20% smaller size for the same power rating, and inherently lower acoustic noise — critical advantages for sensitive electronic applications.

Ordering Information

This is a custom-engineered product. Provide your electrical specifications (input/output voltage, frequency, power rating, isolation requirements) and our design team will deliver a prototype within 10-15 working days. Minimum order quantity starts at just 5 pieces for prototypes.