STD3NK50ZT4 N-Channel MOSFET 500V 2.3A DPAK | STMicroelectronics SuperMESH™ Power Transistor
- Brand: STMicroelectronics
- Product Code: STD3NK50ZT4
- Availability: In Stock
$0.25
- Ex Tax: $0.25
High-Performance STD3NK50ZT4 MOSFET for Demanding Power Applications
Engineered for excellence in power management systems, the STD3NK50ZT4 from STMicroelectronics represents the cutting-edge SuperMESH™ technology lineup. This N-channel power MOSFET combines exceptional electrical performance with robust thermal characteristics, making it an ideal choice for industrial motor drives, renewable energy systems, and automotive electronics. With its advanced design and surface-mount DPAK package, this device delivers reliable operation in high-voltage environments while maintaining exceptional efficiency.
Technical Excellence in Power Semiconductor Design
The STD3NK50ZT4 showcases STMicroelectronics' commitment to innovation through its optimized combination of electrical parameters. Operating at 500V with a continuous drain current of 2.3A, this MOSFET achieves an impressive balance between power handling capability and energy efficiency. The device's 3.3Ω maximum RDS(on) at 10V gate drive ensures minimal conduction losses, while its 15nC gate charge rating enables fast switching performance. These characteristics translate to improved system efficiency and reduced thermal stress in power conversion applications.
Key technical highlights include:
| Parameter | Value |
|---|---|
| Drain-Source Voltage (VDSS) | 500V |
| Continuous Drain Current (ID) | 2.3A @ 25°C |
| RDS(on) Max | 3.3Ω @ 1.15A, 10V |
| Gate Charge (Qg) | 15nC @ 10V |
| Operating Temperature | -55°C to 150°C |
SuperMESH™ Technology Advantages
Leveraging ST's proprietary SuperMESH™ technology, the STD3NK50ZT4 achieves superior performance through its advanced charge compensation structure. This innovative approach reduces both conduction and switching losses while maintaining excellent avalanche energy ratings. The device's high-speed switching capability enables designers to implement compact, high-frequency power supplies with improved energy density. Its ±30V gate voltage rating provides enhanced design flexibility, accommodating various gate drive strategies while maintaining reliable operation.
The DPAK package offers exceptional thermal dissipation through its low 45W thermal resistance (TC). This allows direct mounting on standard PCBs without additional heatsinking requirements in many applications. The device's 280pF input capacitance at 25V ensures compatibility with standard driver circuits while minimizing switching losses.
Industrial and Automotive Applications
Designed for rugged environments, the STD3NK50ZT4 excels in demanding applications such as:
- Industrial motor drives and variable frequency drives
- Renewable energy systems (solar inverters, wind turbines)
- Automotive powertrain control systems
- High-voltage DC-DC converters
- Uninterruptible power supplies (UPS)
Its AEC-Q101 qualification and wide operating temperature range (-55°C to 150°C) make it particularly suitable for automotive applications where thermal cycling and vibration resistance are critical. The device's inherent avalanche ruggedness provides additional reliability in inductive switching applications.
Design Considerations and Implementation
When integrating the STD3NK50ZT4 into power circuits, designers should consider several key factors to maximize performance:
- Implement proper PCB layout techniques to minimize switching node ringing
- Use appropriate gate drive strength to optimize switching transitions
- Ensure adequate PCB copper area for thermal management
- Implement snubber circuits for high dv/dt environments
- Consider parallel operation for higher current requirements
Compared to similar devices in its class, the STD3NK50ZT4 offers a unique combination of low RDS(on), fast switching characteristics, and robust packaging. Its 4.5V gate threshold voltage ensures compatibility with standard 5V logic drivers while maintaining immunity to spurious turn-on events.
Quality and Reliability Assurance
STMicroelectronics' rigorous quality control processes ensure each STD3NK50ZT4 device meets stringent reliability standards. The device undergoes comprehensive testing for:
- High-temperature operating life (HTOL)
- Temperature cycling
- Humidity resistance
- Electrostatic discharge (ESD) immunity
- Short-circuit withstand capability
This commitment to quality is reflected in the device's 100% production testing of key parameters including RDS(on), leakage currents, and switching characteristics. The tape-and-reel packaging ensures proper handling and traceability throughout the supply chain.
Future-Proof Power Solution
As industries transition towards more energy-efficient systems, the STD3NK50ZT4 provides a proven solution for meeting modern power conversion challenges. Its combination of high-voltage capability, low on-resistance, and fast switching performance aligns perfectly with emerging trends in:
- Industrial 4.0 automation systems
- Electric vehicle charging infrastructure
- Smart grid technology
- Energy storage systems
- IoT-enabled power monitoring
When compared to alternative solutions, the STD3NK50ZT4 offers superior performance in key metrics:
| Parameter | Competitor A | Competitor B | STD3NK50ZT4 |
|---|---|---|---|
| RDS(on) (Max) | 4.0Ω | 3.8Ω | 3.3Ω |
| Gate Charge (Max) | 18nC | 16nC | 15nC |
| Thermal Resistance | 50W | 48W | 45W |
| Avalanche Energy | 50mJ | 60mJ | 75mJ |
This superior performance translates directly into system benefits including reduced energy losses, smaller heatsinking requirements, and improved reliability in harsh operating environments.
Tags: Power Electronics, Semiconductor Devices, Industrial Components, Automotive Electronics, Electronic Design