STMicroelectronics STH4N150-2AG N-Channel Power MOSFET

Introduction

The STMicroelectronics STH4N150-2AG is a high-voltage N-channel power MOSFET designed for demanding automotive and power-switching environments. With a 1500 V rating, automotive-grade qualification, and a rugged H²PAK-2 package, it supports efficient switching in systems where high voltage, reliability, and compact implementation are important.

Part Description

The STH4N150-2AG is an AEC-Q101-qualified N-channel power MOSFET from STMicroelectronics. It uses the company’s PowerMESH™ technology to provide high-voltage switching performance with low gate charge and robust avalanche capability.

Its 1500 V drain-source voltage rating makes it suitable for applications that must handle elevated DC bus voltages, transient conditions, or high-voltage power conversion stages. Low gate charge can help simplify gate-drive requirements and reduce switching losses in suitable converter and switching designs.

The device is supplied in an H²PAK-2 package, a package style intended to support power handling and thermal management in compact designs. Its automotive qualification makes it a practical option for vehicle auxiliary systems as well as industrial high-voltage switching equipment.

Applications

Potential applications for the STH4N150-2AG include:

• Automotive auxiliary power converters
• High-voltage DC-DC converter stages
• On-board power management systems
• Battery-management support circuits
• Automotive lighting power supplies
• High-voltage electronic switches
• Flyback and forward converter designs
• Power-factor-correction support circuitry
• Industrial power supplies
• Capacitive-load switching
• High-voltage relay replacement circuits
• Avalanche-tolerant switching applications

Industries

Industries that may use this MOSFET include:

• Automotive and electric vehicle manufacturing
• Automotive electronics
• Industrial automation
• Power-conversion equipment
• Renewable-energy systems
• Energy storage
• Charging infrastructure
• Test and measurement equipment
• Building and facility power management
• Transportation electronics

Usage Ideas

1. Automotive Auxiliary Converter
   Build a high-voltage auxiliary DC-DC converter for supplying lower-voltage electronic modules from a vehicle power bus.

2. High-Voltage LED Driver Switch
   Use the MOSFET as the primary switching device in a controlled high-voltage LED lighting power supply.

3. Industrial Flyback Power Supply
   Design a compact flyback converter for isolated control electronics operating from a high-voltage DC input.

Conclusion

The STMicroelectronics STH4N150-2AG is a robust 1500 V N-channel power MOSFET for automotive and high-voltage switching designs. Its AEC-Q101 qualification, PowerMESH™ technology, low gate charge, avalanche capability, and H²PAK-2 packaging make it well suited to demanding auxiliary power, converter, and electronic switching applications.