Space Grade Choke In GaN/SiC Power Designs
A rugged surface-mount solution brings high-frequency noise suppression and reliability to next-gen aerospace and defense power systems.
A new space-grade common mode choke has been introduced by Vishay Intertechnology, Inc. to address electromagnetic interference (EMI) in high-speed switching environments, particularly those using GaN and SiC technologies. Designed for aerospace, defense, and satellite applications, the device focuses on suppressing noise caused by fast switching edges while maintaining performance under extreme environmental conditions.
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The key features are:
- Nanocrystalline core for high-frequency EMI suppression
- Surface-mount, self-shielded construction
- Wide operating temperature range (-55°C to +130°C)
- High current capability up to 14 A
- Customizable design parameters for application-specific needs
The choke is built around a nanocrystalline core, enabling high impedance across extended frequency ranges—critical for mitigating radiated emissions in modern power architectures. Its surface-mount form factor and self-shielded design make it suitable for compact, high-density layouts such as DC/DC converters, distributed power systems, and solar power converters.
To meet the reliability demands of space-grade applications, the device features an overmolded, ruggedized construction capable of operating across a wide temperature range from -55°C to +130°C. It also supports high current handling, with ratings reaching over 14 A, making it compatible with high-power, low-profile designs.
The component complies with established outgassing standards and supports multiple screening options aligned with military and aerospace specifications. Electrical characteristics include high insulation resistance, strong dielectric withstand capability, and flexible customization options such as winding configurations and wire gauge.
With inductance values ranging broadly and low DC resistance per winding, the choke is engineered to balance efficiency and performance in demanding systems. Availability includes both samples and production volumes, with typical lead times extending up to three months.
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