Fair-Rite High-Frequency Planar Cores
Fair-Rite High-Frequency Planar Cores are power materials that accommodate GaN and SiC semiconductor technologies and meet the needs for efficiency and heat management in power supply designs. Fair-Rite 67 Material features superior performance up to 25MHz. With low losses and good temperature stability, this material is ideal for switching power supplies above 5MHz. The 61 Material is an alternative to 67 Material in applications where higher permeability is valued over lower losses. The 79 Material offers operating frequencies up to 1MHz and is optimized for minimal losses at elevated temperatures. The 80 Material Mn-Zn ferrite is optimized for use in SiC and GaN switching power supplies, providing a stable temperature response for designs up to 5MHz.
Features
- 61 Material
- Alternative to 67 Material
- Ideal for applications where higher permeability is valued over lower losses
- 67 Material
- Up to 25MHz superior performance
- Low losses and good temperature stability
- Ideal for switching power supplies above 5MHz
- 79 Material
- Up to 1MHz operating frequency
- Optimized for minimal losses at elevated temperatures
- 80 Material
- MnZn ferrite has been tuned to operate in SiC and GaN switching power supplies
- Stable temperature response for designs up to 5MHz
Applications
- Switching power supplies
- Power input filters
- Common-mode filters
- Pulse and broadband transformers
Specifications
- Material type
- NiZn (61 and 67 Material)
- MnZn (79 and 80 Material)
- Initial permeability
- 40 (67 Material)
- 125 (61 Material)
- 600 (80 Material)
- 1400 (79 Material)
- Curie temperature
- >225°C (79 Material)
- >280°C (80 Material)
- >300°C (61 Material)
- >425°C (67 Material)
- Optimal frequency range
- 300kHz to 1MHz (79 Material)
- 1MHz to 4MHz (80 Material
- 5MHz to 15MHz (61 and 67 Material)
Performance Factor
