> Campbell revealed that, “In our next powertrain, the silicon carbide transistors that I mentioned, that are key component[s] but expensive, we figured out a w

> Campbell revealed that, “In our next powertrain, the silicon carbide transistors that I mentioned, that are key component[s] but expensive, we figured out a way to use 75% less without compromising the performance or the efficiency of the car.” > Shares of ON Semiconductor and ST Microelectronics each lost about 2%, while Wolfspeed dropped about 7% as investors worried that Tesla’s moves would be a harbinger for the automotive industry. > Campbell also said Tesla’s new powertrains will feature motors built without any rare earth metals. Raw material supplier, MP Materials, known for providing automakers with neodymium, dropped about 11% in response. > Chips made with silicon carbide transistors are widely used in electric vehicles. Generally, they withstand more heat, have a longer life and are more energy-efficient than semiconductors made with silicon power transistors, according to the Institute of Electrical and Electronic Engineers.