40 ns reverse recovery — the switching edge in a TO-3PF
The STTH60AC06CPF is a fast-recovery epitaxial diode from STMicroelectronics, configured as a 1 Pair Common Cathode in a TO-3P-3 Full Pack (TO-3PF) through-hole package. The junction is rated to 175 °C max, which gives headroom in high-ambient industrial enclosures.
Voltage drop and leakage at the operating point
That is a real-world number for a 30 A rated device — expect the Vf to rise with junction temperature, so derate the conduction loss budget at full load. Reverse leakage is 10 µA at the 600 V rated blocking voltage, a figure that doubles roughly every 10 °C above 25 °C junction; at 125 °C it will be significantly higher, so verify the standoff margin in high-temperature soak conditions.
The TO-3PF (full-pack, isolated tab) through-hole package eliminates the need for an insulating pad or thermal washer — the back of the package is electrically isolated, which simplifies assembly and cuts a BOM line. The three through-hole pins fit a standard TO-3P footprint; the full-pack construction means the mounting screw torque matters — follow the ST app note for the recommended value to avoid cracking the resin. Tube shipment (the listed package form) is typical for through-hole power devices; expect 30 to 50 pieces per tube depending on the distributor break-pack policy.
That means no LTB scramble, no premium for last-time buys.