30 A, 600 V, 90 ns — the fast-recovery diode for PFC and boost stages
The STTH30L06G-TR is a 30 A average rectified, 600 V reverse voltage fast-recovery diode from STMicroelectronics, with a 90 ns reverse recovery time (trr). That 90 ns trr at 30 A makes it a solid choice for continuous-conduction-mode (CCM) power factor correction (PFC) stages and boost converters where the diode's turn-off losses directly affect efficiency. The forward voltage is 1.55 V max at the full 30 A rating — a figure you'll need for the conduction loss calculation in the thermal model, especially since the junction can run up to 175°C.
D2PAK footprint and thermal design
The reverse leakage is 25 µA at the 600 V rated voltage — negligible for most designs, but worth noting if the diode sits across a high-impedance node where leakage could bias a control circuit.
Active production, straightforward sourcing
It is a standard catalog part in the STTH30 family, so supply is steady through authorized and independent distribution channels.