800 V, 2 A fast recovery diode — 75 ns trr for high-frequency rectification
The STTH208RL is a standard fast-recovery diode from STMicroelectronics, rated for 800 V DC reverse voltage and 2 A average rectified current. Its 75 ns reverse recovery time (trr) suits it for high-frequency rectification in power factor correction (PFC) stages, flyback converters, and snubber networks where switching losses must be contained.
Parametric profile — leakage, forward drop, and thermal margin
Reverse leakage is specified at 5 µA at the full 800 V blocking voltage, a low figure that helps maintain efficiency in offline supplies where leakage current contributes to standby power draw. Maximum forward voltage is 1.65 V at 2 A, a typical value for an 800 V-class fast recovery diode. Junction temperature is rated to 175°C maximum, giving headroom in enclosed power supplies or motor-drive environments where ambient temperatures push the thermal budget.