STD5NK40ZT4 Overview
The STD5NK40ZT4 is a high-voltage N-channel MOSFET designed for efficient switching and power management in industrial and consumer electronics. With a maximum drain-source voltage of 400V, it supports high-voltage applications requiring fast switching speeds and low conduction losses. This device offers robust performance in power conversion, motor control, and other demanding environments. Its package ensures reliable thermal dissipation and ease of PCB integration. For sourcing and detailed specifications, visit IC Manufacturer.
STD5NK40ZT4 Technical Specifications
| Parameter | Specification |
|---|---|
| Device Type | N-channel MOSFET |
| Drain-Source Voltage (Vds) | 400 V |
| Continuous Drain Current (Id) | 5 A |
| Gate Threshold Voltage (Vgs(th)) | 2.0 – 4.0 V |
| Rds(on) Max (at Vgs=10 V) | 0.55 ?? |
| Total Gate Charge (Qg) | 26 nC |
| Power Dissipation (Pd) | 40 W |
| Package | TO-220 |
| Operating Temperature Range | -55??C to 150??C |
STD5NK40ZT4 Key Features
- High Voltage Rating: Supports up to 400 V drain-source voltage, enabling use in medium to high-voltage power circuits with enhanced safety margins.
- Low On-Resistance: Features a maximum Rds(on) of 0.55 ?? at 10 V gate drive, minimizing conduction losses and improving system efficiency.
- Fast Switching Capability: The device??s optimized gate charge allows for rapid switching, reducing switching losses in PWM-driven applications.
- Robust Thermal Handling: Packaged in TO-220, it facilitates effective heat dissipation, supporting reliable operation under high power conditions.
Typical Applications
- Switched-mode power supplies (SMPS), where efficient high-voltage switching is required for power conversion and regulation.
- DC-DC converters, providing reliable switching performance for voltage step-up or step-down functions in industrial electronics.
- Motor control circuits, enabling precise speed and torque control through efficient power handling.
- General-purpose power switching in consumer and industrial equipment demanding robust high-voltage MOSFETs.
STD5NK40ZT4 Advantages vs Typical Alternatives
This device offers a superior balance of high voltage tolerance and low on-resistance compared to many alternatives, reducing power dissipation and improving system efficiency. Its fast switching and robust thermal design enhance reliability in demanding industrial environments. The TO-220 package ensures straightforward heat management and mechanical stability, making it a preferred choice for engineers sourcing power MOSFETs in medium-voltage applications.
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STD5NK40ZT4 Brand Info
The STD5NK40ZT4 is a product of STMicroelectronics, a leading global semiconductor manufacturer known for innovation and quality in power MOSFET technology. STMicroelectronics specializes in delivering reliable components suitable for a wide range of industrial, automotive, and consumer applications. This device benefits from ST??s expertise in power transistor design, ensuring consistent performance, high reliability, and broad availability worldwide.
FAQ
What is the maximum voltage rating for the STD5NK40ZT4?
The maximum drain-source voltage for this MOSFET is 400 volts, making it suitable for medium to high-voltage applications such as power supplies and motor drives.
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How does the on-resistance affect the performance of this MOSFET?
The on-resistance (Rds(on)) impacts conduction losses when the device is switched on. With a typical max Rds(on) of 0.55 ?? at 10 V gate drive, this MOSFET offers efficient current flow with minimal power loss, improving overall system efficiency.
What package type does the STD5NK40ZT4 come in, and why does it matter?
This device is housed in a TO-220 package, which provides good thermal dissipation and mechanical robustness. This package type is widely used for power devices needing efficient heat management and simple mounting on heatsinks.






