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SI4451DY from SILICONIX

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SI4451DY

Manufacturer: SILICONIX

P-Channel 12-V (D-S) MOSFET

Partnumber Manufacturer Quantity Availability
SI4451DY SILICONIX 148 In Stock

Description and Introduction

P-Channel 12-V (D-S) MOSFET The SI4451DY is a P-Channel MOSFET manufactured by Siliconix (now part of Vishay). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Drain-Source Voltage (VDSS):** -30V  
- **Continuous Drain Current (ID):** -5.5A  
- **Pulsed Drain Current (IDM):** -22A  
- **Gate-Source Voltage (VGS):** ±20V  
- **Power Dissipation (PD):** 2.5W  
- **On-Resistance (RDS(on)):** 0.06Ω (max) at VGS = -10V  
- **Threshold Voltage (VGS(th)):** -1V to -2.5V  
- **Total Gate Charge (Qg):** 11nC (typical)  
- **Operating Junction Temperature (TJ):** -55°C to +150°C  

### **Description:**
The SI4451DY is a P-Channel MOSFET designed for high-efficiency power management applications. It features low on-resistance and fast switching performance, making it suitable for load switching, power supplies, and DC-DC converters.

### **Features:**
- **Low On-Resistance:** Minimizes conduction losses.  
- **Fast Switching Speed:** Improves efficiency in high-frequency applications.  
- **Avalanche Energy Rated:** Enhances reliability under inductive loads.  
- **Logic-Level Gate Drive:** Compatible with 5V and 3.3V logic.  
- **Low Gate Charge:** Reduces switching losses.  
- **TO-252 (DPAK) Package:** Compact and suitable for surface-mount applications.  

This information is sourced from the manufacturer's datasheet.

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