Nanocrystalline Cores for High Frequency Power Transformers
High-efficiency magnetic cores for compact, powerful transformer designs
TI-Electronic’s nanocrystalline cores are specifically engineered for high-frequency, high-power transformers. They deliver a powerful combination of high saturation flux density, low core losses, and thermal stability, making them ideal for switched-mode power supplies (SMPS), industrial electronics, and demanding energy applications.
✨ Key Advantages
High saturation flux density (1.25 T): Enables smaller core sizes without sacrificing performance.
Low core loss (20–50 kHz): Reduces heat generation and improves energy efficiency.
High permeability & low coercivity: Minimizes copper losses and magnetizing current.
Stable operation up to 120 °C: Excellent temperature resilience for industrial use.
Low magnetostriction: Quiet operation with minimal audible noise.
Compared to ferrite materials, nanocrystalline cores offer:
Up to 5× higher saturation flux density
70–80% lower core loss in the 20–50 kHz range
10× higher magnetic permeability
Better efficiency, smaller footprint, and lower operating temperature
🌋 Applications
These transformer cores are used in a variety of modern, high-frequency systems:
High-power SMPS (Switched Mode Power Supplies)
Laser and X-ray power systems
Inverter welding machines and plating equipment
IGBT inverters and medium/high-frequency induction heaters
Telecom and industrial power systems
Their performance makes them ideal for push-pull, half-bridge, and full-bridge topologies.
📆 Case Types
O – Toroidal core
Ω / Π – Toroidal core with two legs
H – Toroidal core with four legs
Custom shapes and mounting features available on request.
📄 Product Features Summary
Optimized for operation between 20–50 kHz
High power density with minimal temperature rise
Supports power levels from 0.5 kW to 25 kW
Available with case types for different mechanical mounting setups
Nanocrystalline Cores for High Frequency Power Transformers - Product Range Specification Table
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Case Type:
O – Toroidal core | Ω and Π – Toroidal core with two legs | H – Toroidal core with 4 legs | |
O | Ω | Π | H |

Part Nr. | Core dimension (mm) | Case dimension (mm) | Eff. | Mean | Weight | Power | Case | ||||
od | id | h | OD | ID | H | Ae | Lm | Wt | P | ||
TIE-NANO-HF-503220T | 50 | 32 | 20 | 53.8 | 28.5 | 24 | 1.40 | 12.9 | 131 | 0.5-1 | O |
TIE-NANO-HF-644020T | 64 | 40 | 20 | 68.2 | 37 | 23.5 | 1.87 | 16.3 | 222 | 1-3 | O |
TIE-NANO-HF-805025T | 80 | 50 | 25 | 83.5 | 47.2 | 28.8 | 2.93 | 20.4 | 433 | 3-5 | O |
TIE-NANO-HF-805025S | 80 | 50 | 25 | 83.5 | 47.2 | 28.8 | 2.93 | 20.4 | 433 | 3-5 | Ω |
TIE-NANO-HF-1006020T | 100 | 60 | 20 | 106 | 55 | 25 | 3.12 | 25.1 | 568 | 5-7 | O |
TIE-NANO-HF-1006020S | 100 | 60 | 20 | 106 | 55 | 25 | 3.12 | 25.1 | 568 | 5-7 | Ω |
TIE-NANO-HF-1207020T | 120 | 70 | 20 | 125 | 65 | 26 | 3.90 | 29.8 | 843 | 7-10 | O |
TIE-NANO-HF-1207020S | 120 | 70 | 20 | 125 | 65 | 26 | 3.90 | 29.8 | 843 | 7-10 | Π |
TIE-NANO-HF-1207030T | 120 | 70 | 30 | 125 | 65 | 36 | 5.85 | 29.8 | 1265 | 10-15 | O |
TIE-NANO-HF-1207030S | 120 | 70 | 30 | 125 | 65 | 36 | 5.85 | 29.8 | 1265 | 10-15 | Π |
TIE-NANO-HF-1308040T | 130 | 80 | 40 | 136 | 75 | 46 | 7.80 | 33.0 | 1864 | 15-20 | O |
TIE-NANO-HF-1308040S | 130 | 80 | 40 | 136 | 75 | 46 | 7.80 | 33.0 | 1864 | 15-20 | H |
TIE-NANO-HF-1308050T | 130 | 80 | 50 | 136 | 75 | 56 | 9.75 | 33.0 | 2331 | 20-25 | O |
TIE-NANO-HF-1308050S | 130 | 80 | 50 | 136 | 75 | 56 | 9.75 | 33.0 | 2331 | 20-25 | H |