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 PTC heating thermistors provide the self-limiting, high energy heating elements compartment heaters rely on, while our Automotive Grade, low RDS(on) power MOSFETs and relays switch the heater's substantial current draw. Power Metal Strip® shunts measure current and NTC thermistors provide the temperature feedback that keeps cabin heating efficient and safe.
Behind the PTC compartment heater is The DNA of tech.®
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