Cabin PTC heaters must warm the vehicle interior quickly and efficiently, particularly in EVs where a traditional engine's waste heat is unavailable. The heaters require efficient high current switching, accurate current regulation to avoid overheating, and reliable operation through repeated thermal cycles.
Vishay’s MaxSiC® 1200 V N-Channel SiC MOSFET efficiently switches and controls the high power required by the PTC heating system, while current sense resistors provide accurate current feedback to support precise control and system protection. Together, these technologies support the efficient, safe, and reliable operation of high voltage cabin heating systems.
Behind the cabin PTC heater is The DNA of tech.®
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