STTH812DI

Single Diodes Overview

The STTH812DI is a single ultrafast recovery rectifier diode manufactured by STMicroelectronics. It features a peak repetitive reverse voltage of 1200 V and a continuous forward current rating of 8 A. The device exhibits a maximum forward voltage drop of 2.2 V and a typical reverse leakage current of 8 µA. Its ultrafast recovery time is specified at 50 ns, with a peak non-repetitive forward surge current capability of 80 A. Designed for through-hole mounting, it is housed in an insulated TO-220AC package, supporting a maximum operating junction temperature of +175 °C.

Single Diodes Feature Summary

• Ultrafast soft recovery characteristics designed to minimize switching losses and electromagnetic interference during high-frequency operation.
• High thermal stability and ruggedness suitable for heavy-duty applications requiring long-term reliability under mission-critical conditions.
• Insulated package construction providing electrical isolation to prevent short circuits in high-voltage environments.

Single Diodes Applications

• Industrial power supplies requiring efficient rectification
• Motor control systems utilizing freewheeling functions
• Auxiliary snubber and bootstrap circuits
• Demagnetization applications in inductive loads

Single Diodes Procurement Notes

Verify the specific suffix 'DI' against the official datasheet to confirm pinout orientation and insulation class. Ensure the procurement specification matches the required TO-220AC package variant. Confirm that the 1200 V rating aligns with the system's peak inverse voltage requirements. Validate compliance with RoHS directives if applicable to the manufacturing region. Cross-reference the manufacturer part number to avoid confusion with similar series components.

Single Diodes Selection Notes

Select this component for designs demanding low conduction losses combined with fast switching speeds. The 1200 V rating provides sufficient headroom for high-voltage industrial systems. Consider the thermal management requirements associated with the TO-220AC package for sustained 8 A operation. Evaluate the 50 ns recovery time against the circuit's switching frequency to ensure minimal reverse recovery charge losses.

Single Diodes Part Context

This device belongs to the STTH812 series of ultrafast diodes from STMicroelectronics. The series is engineered for high-performance rectification in power electronics. It complements other components in motor drive and power supply architectures where efficiency and reliability are paramount. The insulated package variant distinguishes it from standard non-insulated counterparts in the same electrical family.

Single Diodes Replacement Considerations

Consult official substitution guides for equivalent ultrafast diodes with matching 1200 V and 8 A ratings. Verify that any substitute maintains the 50 ns recovery time and TO-220AC form factor. Ensure thermal and electrical characteristics align with the original design specifications before implementation.