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STD7NK40ZT4 from STM,ST Microelectronics

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STD7NK40ZT4

Manufacturer: STM, ST,ST

N-CHANNEL 400V

Partnumber Manufacturer Quantity Availability
STD7NK40ZT4 STM, ST,ST 45200 In Stock

Description and Introduction

N-CHANNEL 400V The STD7NK40ZT4 is a N-channel Power MOSFET manufactured by STMicroelectronics.  

### **Specifications:**  
- **Drain-Source Voltage (VDSS):** 400V  
- **Continuous Drain Current (ID):** 7A  
- **Pulsed Drain Current (IDM):** 28A  
- **Power Dissipation (PD):** 45W  
- **Gate-Source Voltage (VGS):** ±30V  
- **On-State Resistance (RDS(on)):** 0.65Ω (max) at VGS = 10V  
- **Threshold Voltage (VGS(th)):** 3V (min), 5V (max)  
- **Input Capacitance (Ciss):** 500pF (typ)  
- **Output Capacitance (Coss):** 100pF (typ)  
- **Reverse Transfer Capacitance (Crss):** 20pF (typ)  
- **Turn-On Delay Time (td(on)):** 10ns (typ)  
- **Turn-Off Delay Time (td(off)):** 35ns (typ)  
- **Operating Junction Temperature (TJ):** -55°C to 150°C  

### **Descriptions:**  
The STD7NK40ZT4 is a high-voltage MOSFET designed for switching applications. It features low on-resistance, fast switching performance, and high ruggedness, making it suitable for power supplies, motor control, and lighting applications.  

### **Features:**  
- **Low Gate Charge:** Improves switching efficiency.  
- **Avalanche Ruggedness:** Ensures reliability in harsh conditions.  
- **Low RDS(on):** Reduces conduction losses.  
- **Fast Switching Speed:** Enhances performance in high-frequency applications.  
- **TO-220 Package:** Provides good thermal dissipation.  

This information is based on STMicroelectronics' official datasheet.

Application Scenarios & Design Considerations

N-CHANNEL 400V

Alternative Part Number

  • IRF740PBF --: 400V N-channel MOSFET with comparable RDS(on) and current rating, widely available and pin-compatible in TO-220.
  • FQP7N40 --: 400V 7A N-channel MOSFET in TO-220, close electrical match to the STD7NK40Z.
  • SPP07N40 --: 400V N-channel MOSFET with similar voltage and current ratings, suitable drop-in replacement in most switching applications.
  • 2SK3569 --: 500V N-channel MOSFET offering higher voltage margin and comparable current capability, usable as an upgrade alternative.

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