Can fast recovery diodes and Schottky diodes be interchanged? 1

Fast Recovery Diode and Schottky Diode are two common types of BTS3118N diodes in the field of electronic components. They both have fast conductivity characteristics, but have significant differences in structure, working principle, and application areas. Understanding these differences can help determine whether they can be used interchangeably.diode

Fast recovery diode

Fast recovery diode is a specially designed PN junction diode that has been improved to address the issue of long recovery time in ordinary diodes, making it suitable for use in high-frequency circuits and reducing energy loss during switching. Fast recovery diodes are commonly used in high-frequency circuits such as frequency converters, switching power supplies, and inverter circuits. Its main feature is its short reverse recovery time (TRR), which enables fast switching. However, compared to Schottky diodes, fast recovery diodes have a larger forward voltage drop and smaller reverse leakage current.diode

Schottky diode

Schottky diodes use Schottky barriers between metals and semiconductors to form conductive channels, which have lower forward conduction voltage drop and faster switching speed compared to traditional PN junction diodes. Schottky diodes are highly suitable as power rectifier devices, especially performing well in low-voltage applications. Its reverse recovery time is extremely short, almost negligible, but the disadvantage is that the reverse leakage current is large at high temperatures, and the reverse withstand voltage is generally not high.diode