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SI4980DY from SILICONIX

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SI4980DY

Manufacturer: SILICONIX, SI, VISHAY

50-V (D-S) Dual

Partnumber Manufacturer Quantity Availability
SI4980DY SILICONIX, SI, VISHAY 1050 In Stock

Description and Introduction

50-V (D-S) Dual The SI4980DY is a power MOSFET manufactured by Vishay Siliconix. Below are the specifications, descriptions, and features based on the available knowledge:

### **Manufacturer:**  
Vishay Siliconix  

### **Specifications:**  
- **Type:** N-Channel Power MOSFET  
- **Drain-Source Voltage (VDSS):** 30V  
- **Continuous Drain Current (ID):** 50A  
- **Pulsed Drain Current (IDM):** 200A  
- **Power Dissipation (PD):** 125W  
- **Gate-Source Voltage (VGS):** ±20V  
- **On-Resistance (RDS(on)):**  
  - 4.5mΩ (at VGS = 10V)  
  - 5.5mΩ (at VGS = 4.5V)  
- **Total Gate Charge (Qg):** 100nC (typical)  
- **Input Capacitance (Ciss):** 3800pF  
- **Output Capacitance (Coss):** 1200pF  
- **Reverse Transfer Capacitance (Crss):** 300pF  
- **Turn-On Delay Time (td(on)):** 13ns  
- **Rise Time (tr):** 45ns  
- **Turn-Off Delay Time (td(off)):** 35ns  
- **Fall Time (tf):** 20ns  
- **Operating Temperature Range:** -55°C to +175°C  
- **Package:** D2PAK (TO-263)  

### **Description:**  
The SI4980DY is a high-performance N-channel MOSFET designed for power management applications, including DC-DC converters, motor control, and load switching. It features low on-resistance and high current handling capability, making it suitable for high-efficiency power conversion.  

### **Features:**  
- Low RDS(on) for reduced conduction losses  
- High current capability  
- Fast switching performance  
- Improved thermal characteristics  
- Lead (Pb)-free and RoHS compliant  
- Optimized for synchronous rectification in DC-DC converters  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

50-V (D-S) Dual

Alternative Part Number

  • FDS8958A --: Dual N-channel MOSFET in SO-8 with comparable voltage and current ratings, a common drop-in for Siliconix dual MOSFETs.
  • IRF7341 --: Dual N-channel MOSFET in SO-8 with similar RDS(on) and voltage rating, widely available and pin-compatible.
  • NTMD4840NR2G --: Dual N-channel MOSFET in SO-8 offering similar switching performance and ratings as a functional substitute.
  • FDS4935A --: Dual P-channel MOSFET in SO-8 with similar voltage and current ratings, widely used as a drop-in replacement for the SI4980DY.
  • IRF7324 --: Dual P-channel MOSFET in SO-8 package with comparable RDS(on) and voltage rating, suitable for load switch and power management applications.
  • NTMS4935NR2 --: Dual P-channel MOSFET in SO-8 with similar electrical characteristics and pinout, offering a cost-effective alternative.

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