STMicroelectronics STTH110A Standard Diode 1kV 1A SMA

High-Performance Power Management with STMicroelectronics STTH110A Diode

STMicroelectronics, a leader in semiconductor technology, delivers reliable power management solutions through its STTH110A diode. This standard diode combines robust performance with compact surface-mount design, making it ideal for modern electronic systems requiring efficient rectification and high-voltage tolerance. Designed for applications ranging from industrial power supplies to consumer electronics, the STTH110A offers exceptional electrical characteristics and thermal stability.

Key Technical Features

Engineered for demanding environments, the STTH110A features a 1000V DC reverse voltage rating and 1A average rectified current capacity. Its fast recovery time of 75ns ensures minimal switching losses, while the 1.7V forward voltage drop at 1A optimizes energy efficiency. The device's surface-mount SMA package (DO-214AC) provides excellent thermal dissipation and space-saving integration for PCB designs.

Design Advantages

The STTH110A's fast recovery characteristics make it particularly suitable for switch-mode power supplies, motor drives, and voltage clamping circuits. Its SMA package with surface-mount compatibility simplifies automated assembly processes while maintaining mechanical durability. The device's high junction temperature rating of 175°C ensures reliable operation in elevated temperature environments without derating.

Compared to traditional through-hole diodes, this surface-mount solution reduces board space requirements by 40% while maintaining equivalent power handling capabilities. The 1000V reverse voltage rating provides design flexibility for applications requiring galvanic isolation or high transient voltage suppression.

Industrial Applications

Engineers across various industries leverage the STTH110A's performance in:

• Renewable energy systems (solar inverters, wind turbine controllers)
• Industrial motor drives and variable frequency drives
• Telecom power supplies and battery charging circuits
• Consumer electronics power adapters
• Automotive power management systems

Its compliance with RoHS standards and JEDEC-certified packaging ensures environmental compliance and supply chain reliability. The device's 10µA reverse leakage current at maximum voltage rating contributes to improved system efficiency, particularly in standby power applications.

Performance Optimization

When implementing the STTH110A in circuit designs, consider the following recommendations:

1. Maintain minimum 2mm creepage distance around the diode for 1000V applications
2. Use thermal vias in PCB layout to enhance heat dissipation
3. Implement snubber circuits for inductive load applications exceeding 50V
4. Derate current capacity by 0.5% per °C above 100°C junction temperature

These best practices maximize the device's performance while maintaining its 15-year+ operational lifespan under typical conditions. The SMA package's low profile (2.5mm max height) also facilitates conformal coating processes for harsh environment deployments.

Tags: Fast Recovery Diode, High Voltage Diode, Surface Mount Diode, Power Electronics, Rectifier Diode