N-channel MOSFETs, 600V, 21A, TO-247 package for power applications
Manufacturer: stm
# Introduction to the STW25NM60N Product Series
## 1. Overview
The STW25NM60N product series is a remarkable line of power MOSFETs (Metal - Oxide - Semiconductor Field - Effect Transistors) developed by STMicroelectronics. These MOSFETs are designed to meet the demanding requirements of a wide range of power electronics applications, offering high performance, reliability, and efficiency.
## 2. Key Features
### 2.1 Electrical Characteristics
- **Voltage Rating**: The STW25NM60N series is rated for a drain - source voltage ($V_{DS}$) of 600V. This high voltage rating makes it suitable for applications that require handling high - voltage power supplies, such as switch - mode power supplies (SMPS), motor control, and lighting ballasts.
- **Current Capability**: With a continuous drain current ($I_D$) of up to 25A, these MOSFETs can handle significant amounts of current, enabling them to drive high - power loads. The low on - resistance ($R_{DS(on)}$) of the device, typically in the range of a few tens of milliohms, helps to minimize power losses and improve overall efficiency.
- **Gate - Source Voltage ($V_{GS}$)**: The gate - source voltage range is typically specified from - 20V to + 20V. This wide range provides flexibility in gate - drive design and allows for easy integration with different types of control circuits.
### 2.2 Thermal Performance
- **Low Thermal Resistance**: The STW25NM60N series is designed with a low thermal resistance ($R_{θJC}$) between the junction and the case. This feature ensures efficient heat dissipation from the device, allowing it to operate at higher power levels without overheating. As a result, the MOSFETs can maintain stable performance even under high - load conditions.
- **Thermal Stability**: These MOSFETs exhibit excellent thermal stability over a wide temperature range. They are able to withstand high operating temperatures without significant degradation in performance, which is crucial for applications in harsh environments.
### 2.3 Package and Mounting
- **TO - 220 Package**: The STW25NM60N is commonly available in the TO - 220 package, which is a popular choice for power electronics applications. The TO - 220 package offers good mechanical stability and easy mounting on printed circuit boards (PCBs). It also provides a large surface area for heat dissipation, which helps to keep the device cool during operation.
- **Through - Hole Mounting**: The through - hole mounting style of the TO - 220 package allows for reliable electrical connections and mechanical support. It is suitable for both manual and automated assembly processes, making it convenient for mass production.
## 3. Applications
### 3.1 Switch - Mode Power Supplies (SMPS)
- In SMPS, the STW25NM60N MOSFETs are used as the main switching elements. Their high voltage and current ratings, along with low on - resistance, enable efficient conversion of electrical power from one voltage level to another. They can handle the high - frequency switching required in modern SMPS designs, resulting in smaller and more efficient power supplies.
- For example, in a laptop power adapter, the STW25NM60N can be used in the primary side of the SMPS to convert the high - voltage AC input to a lower - voltage DC output.
### 3.2 Motor Control
- In motor control applications, these MOSFETs are used to drive the motors. They can handle the high currents required to start and run the motors, and their fast switching speeds allow for precise control of the
TO-247-3
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