PPTC is the abbreviation of Polymeric Positive Temperature Coefficient. PPTC device is a polymer positive temperature coefficient device. This device can protect the circuit when the current surge is too large and the temperature is too high. When used, connect it in series in the circuit. Under nor

MOSFET gate source protectionThe power MOS tube itself has many advantages, but the MOS tube has a relatively fragile ability to withstand short-term overload, especially in high-frequency applications. Therefore, when applying power MOS tubes, a reasonable protection circuit must be designed for i