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STB55NF03LT4 from ST,ST Microelectronics

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STB55NF03LT4

Manufacturer: ST

N-CHANNEL 30V

Partnumber Manufacturer Quantity Availability
STB55NF03LT4 ST 15000 In Stock

Description and Introduction

N-CHANNEL 30V The STB55NF03LT4 is an N-channel MOSFET manufactured by STMicroelectronics. Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Drain-Source Voltage (VDS):** 30V  
- **Continuous Drain Current (ID):** 55A  
- **Pulsed Drain Current (IDM):** 220A  
- **Power Dissipation (PD):** 70W  
- **Gate-Source Voltage (VGS):** ±20V  
- **On-Resistance (RDS(on)):** 7.5mΩ (max) at VGS = 10V  
- **Threshold Voltage (VGS(th)):** 1V (min) to 2.5V (max)  
- **Total Gate Charge (Qg):** 60nC (typ)  
- **Operating Junction Temperature (TJ):** -55°C to +175°C  

### **Descriptions:**  
- **Package:** TO-263 (D2PAK)  
- **Technology:** STripFET™ III Power MOSFET  
- **Application:** Designed for high-efficiency power switching applications, such as DC-DC converters, motor control, and power management.  

### **Features:**  
- Low on-resistance for reduced conduction losses.  
- Fast switching performance.  
- Enhanced thermal performance due to the TO-263 package.  
- 100% avalanche tested for ruggedness.  
- Lead-free and RoHS compliant.  

This MOSFET is optimized for high-current, low-voltage applications.

Application Scenarios & Design Considerations

N-CHANNEL 30V

Alternative Part Number

  • IRLZ44NPBF --: Logic-level N-channel MOSFET in TO-220 with comparable low RDS(on) and voltage rating, widely available and pin-compatible for similar switching applications.
  • FQP30N06L --: Logic-level 60V N-channel MOSFET offering similar current handling and low gate drive requirements, suitable drop-in for many 55NF03L designs.
  • IRFZ44NPBF --: Popular 55V N-channel MOSFET with comparable current rating and low RDS(on), commonly used as an alternative in power switching circuits.

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