St MicroElectronics STTH3012W Ultrafast Recovery Diode 1.2kV 30A TO-247

The St MicroElectronics STTH3012W is an ultrafast recovery diode rated at 1.2kV and 30A, engineered for demanding industrial power applications.

Housed in a TO-247 package with a flame-retardant UL94V-0 epoxy casing, the diode combines low leakage current with consistent, reproducible electrical characteristics and intrinsic ruggedness for long-term reliability in demanding environments.

Applications

The STTH3012W is suited to heavy-duty applications such as industrial power supplies and other systems that require efficient rectification and freewheeling functions. It is also well suited to auxiliary roles in snubber, bootstrap, and demagnetisation circuits.

Key Features

• Ultrafast recovery with a reverse recovery time of 57 ns
• Average forward current of 30 A and surge current of 210 A
• Repetitive peak reverse voltage of 1.2 kV
• Maximum junction temperature of 175°C
• Very low conduction and switching losses for efficient high-frequency operation
• Low leakage current, supporting a greater thermal runaway guard band
• Capable of handling high pulsed currents

Dimensions and Weight

The product has a width of 3.3, a depth of 1.5 and a height of 4.3, with a weight of 4.4 gm.

Its design prioritises durability and consistent performance, with a high reverse voltage capability and the ability to operate at a high junction temperature under strenuous conditions, making it a practical component for engineers working on high-power designs that require efficient switching and stable operation.