STMicroelectronics STTH112U Standard Diode 1.2KV 1A Fast Recovery SMB Package

High-Performance STMicroelectronics STTH112U Diode for Demanding Power Applications

The STMicroelectronics STTH112U standard diode represents a perfect balance of high-voltage capability, fast recovery characteristics, and robust design for modern power electronics. This 1.2kV, 1A device combines advanced semiconductor technology with the compact SMB package to deliver exceptional performance in switching circuits, power conversion systems, and industrial equipment. With its 75ns reverse recovery time and 1.9V forward voltage drop at full load, this component sets new standards for efficiency and reliability in high-voltage rectification applications.

Key Technical Advantages

Engineered for precision power management, the STTH112U features a maximum DC reverse voltage of 1200V combined with a 1A average rectified current capacity. Its fast recovery characteristics (<=500ns) make it ideal for high-frequency switching applications where energy efficiency and thermal management are critical. The device maintains minimal leakage current of just 5µA at rated voltage while operating with a junction temperature tolerance up to 175°C, ensuring stable performance in demanding environments.

Industrial-Grade Reliability

Housed in the industry-standard DO-214AA (SMB) surface-mount package, this diode offers excellent mechanical stability and thermal dissipation characteristics. The Tape & Reel packaging format ensures seamless integration with automated PCB assembly processes while maintaining component integrity during handling and storage. Designed for mission-critical applications, the STTH112U maintains consistent performance across diverse operating conditions while meeting stringent industrial reliability standards.

Optimized Application Performance

Power supply designers benefit from this diode's exceptional characteristics in various applications including:

• Switching power supplies and converters
• Motor drive circuits and industrial inverters
• Voltage clamping and transient protection
• High-voltage DC link circuits
• Welding equipment and plasma cutting systems

The device's fast recovery time minimizes switching losses while its high-temperature tolerance enhances system longevity. The surface-mount design reduces board space requirements while maintaining excellent thermal management capabilities through proper PCB layout techniques.

Advanced Design Integration

The STTH112U's specifications make it particularly suitable for modern power electronics requiring compact form factors without compromising performance. When implementing this diode in circuit designs, engineers should consider optimal PCB layout practices to maximize thermal dissipation and minimize parasitic inductance. The component's low leakage current characteristics (5µA @ 1200V) contribute to improved system efficiency, particularly in standby power-sensitive applications.

Tags: Power Diodes, High Voltage Rectifiers, Fast Recovery Diodes, SMB Components, STMicroelectronics Semiconductors