🔍 Key Concepts

• Characteristics and typical applications of hot-carrier (Schottky) diodes • Which applications need very fast switching and low forward voltage drop • Differences between diodes used for reference/rectifier vs RF/microwave work

💭 Think About

• For each choice, ask yourself: does this application really need the speed and high-frequency performance of a hot-carrier diode? • Which option most clearly involves VHF/UHF or microwave frequencies where ordinary PN diodes perform poorly? • Which of these applications is more commonly associated with Zener diodes or varactor diodes, rather than hot-carrier diodes?

✅ Before You Answer

• Identify which option is clearly an RF or microwave-frequency function. • Eliminate any choices that are usually handled by Zener (voltage reference) or varactor (variable capacitance) diodes, not hot-carrier types. • Confirm that the remaining choice fits with the idea of very fast, low-capacitance, low-forward-drop diodes.