STGD18N40LZT4 Overview
The STGD18N40LZT4 is a high-voltage N-channel MOSFET designed for efficient power switching in industrial and consumer electronic applications. With a drain-source voltage rating of 400 V, it supports high-voltage environments while maintaining low on-resistance for reduced conduction losses. The device features a fast switching speed and robust avalanche energy capability, making it ideal for reliable operation in power converters, motor drives, and switched-mode power supplies. Its compact TO-220 package ensures easy integration into existing systems. Available from IC Manufacturer, this MOSFET offers a balance of performance and durability for demanding electronic designs.
STGD18N40LZT4 Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Drain-Source Voltage (VDS) | 400 | V |
| Continuous Drain Current (ID) | 18 | A |
| Gate Threshold Voltage (VGS(th)) | 2.0 – 4.0 | V |
| On-Resistance (RDS(on)) | 0.23 (max) | ?? |
| Power Dissipation (PD) | 160 | W |
| Input Capacitance (Ciss) | 450 | pF |
| Rise Time (tr) | 30 | ns |
| Fall Time (tf) | 55 | ns |
| Package Type | TO-220 | ?C |
STGD18N40LZT4 Key Features
- High voltage capability: Rated for 400 V drain-source voltage, enabling use in high-voltage switching applications without compromising reliability.
- Low on-resistance: Maximum RDS(on) of 0.23 ?? reduces conduction losses, improving overall system efficiency and reducing heat generation.
- Fast switching speed: Rise and fall times of 30 ns and 55 ns respectively support high-frequency operation, enhancing performance in switching power supplies.
- Robust thermal management: TO-220 package allows for effective heat dissipation, supporting power dissipation up to 160 W under proper cooling conditions.
- Reliable gate threshold voltage: Tight VGS(th) range of 2.0 to 4.0 V ensures predictable switching behavior for precise control in complex circuits.
Typical Applications
- Switch-mode power supplies (SMPS): Provides efficient high-voltage switching for AC/DC conversion and power regulation, critical in industrial and consumer electronics.
- Motor drive circuits: Supports reliable control of motors in automation and control systems with its high current and voltage ratings.
- DC-DC converters: Enables efficient voltage regulation and step-down conversion in various power management designs.
- Lighting ballasts and inverters: Suitable for electronic ballast and inverter circuits requiring high-voltage switching with fast response times.
STGD18N40LZT4 Advantages vs Typical Alternatives
This MOSFET offers a competitive advantage through its high voltage rating combined with low on-resistance, delivering efficient power management and reduced losses compared to typical alternatives. Its fast switching speeds and robust avalanche energy handling improve reliability in demanding industrial applications. The TO-220 package ensures simplified thermal management, making it a preferred choice for engineers seeking both performance and durability in power semiconductor devices.
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STGD18N40LZT4 Brand Info
The STGD18N40LZT4 is manufactured by STMicroelectronics, a global leader in semiconductor solutions. STMicroelectronics is renowned for its high-quality power MOSFETs designed to deliver superior efficiency and reliability in industrial and consumer electronics. This specific device is part of their discrete MOSFET portfolio, engineered for applications requiring robust high-voltage switching and thermal performance. ST??s commitment to innovation and quality ensures that the STGD18N40LZT4 meets stringent industry standards for





