Solid-state circuit breakers use power semiconductor switching devices — typically MOSFETs, IGBTs, or silicon carbide (SiC) and gallium nitride (GaN) wide-bandgap devices — to provide overcurrent and fault protection without mechanical contacts, offering deterministic trip times in the microsecond range and compatibility with 28 V DC, 270 V DC, and emerging 540 V DC aerospace power architectures.
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Solid State Circuit Breakers suppliers linked to most aircraft programs in our database.
Eaton Electrical Sensing & Controls Division (1 aircraft)Sectors serving Circuit Protection companies:
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Non-metal Materials

Circuit Protection

Sectors purchasing from Circuit Protection companies:
Electrical Power Systems •
Airframer •
Turbine Engines •
Electric Propulsion •
Flight & Data Management •
Fluid Power •
Active Electronic Components •
Airframe Assemblies •
Piston & Rotary Engines •
Auxiliary Power •
Engine Rotating & Gas-Path Parts