STMicroelectronics

STTH812G

STTH812G Description

The STTH812G from STMicroelectronics is a high-voltage, fast-recovery rectifier diode designed for demanding power electronics applications. With a 1200V reverse voltage (Vr) and 8A average rectified current (Io), it delivers robust performance in high-power circuits. Its fast recovery time (trr) of 100ns ensures efficient switching, minimizing energy losses in high-frequency applications. The diode features a low forward voltage drop (2.2V @ 8A), enhancing thermal efficiency, and operates reliably at junction temperatures up to 175°C. Packaged in a D2PAK (TO-263) surface-mount format, it is suitable for automated assembly while offering excellent thermal dissipation.

STTH812G Features

• High Voltage & Current Rating: 1200V Vr and 8A Io for robust power handling.
• Fast Recovery: 100ns trr ensures minimal switching losses in high-frequency circuits.
• Low Leakage Current: 8µA @ 1200V enhances efficiency in standby modes.
• Thermal Performance: 175°C max junction temperature for high-reliability operation.
• Surface-Mount D2PAK Package: Optimized for PCB mounting and heat dissipation.
• Compliance: ROHS3 and REACH compliant, meeting environmental standards.

STTH812G Applications

The STTH812G is ideal for:

• Power Supplies: High-efficiency AC-DC and DC-DC converters.
• Industrial Inverters: Motor drives, UPS systems, and welding equipment.
• Renewable Energy: Solar inverters and wind power converters.
• Automotive Systems: EV charging and auxiliary power modules.
• Telecom & Server PSUs: High-voltage rectification in compact designs.

Conclusion of STTH812G

The STTH812G stands out as a high-performance rectifier diode for high-voltage, fast-switching applications. Its low losses, high thermal endurance, and compact D2PAK package make it a superior choice over standard diodes in power electronics. While now obsolete, its legacy design remains relevant for engineers seeking reliability in industrial, automotive, and renewable energy systems. For modern alternatives, consider STMicroelectronics' latest fast-recovery diodes with improved efficiency metrics.