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IRF4905PBF from IR,International Rectifier

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IRF4905PBF

Manufacturer: IR

-55V Single P-Channel HEXFET Power MOSFET in a TO-220AB package

Partnumber Manufacturer Quantity Availability
IRF4905PBF IR 12000 In Stock

Description and Introduction

-55V Single P-Channel HEXFET Power MOSFET in a TO-220AB package The IRF4905PBF is a Power MOSFET manufactured by Infineon Technologies. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Infineon Technologies  
- **Part Number:** IRF4905PBF  
- **Type:** P-Channel Power MOSFET  
- **Drain-Source Voltage (VDSS):** -55V  
- **Continuous Drain Current (ID):** -74A (at 25°C)  
- **Pulsed Drain Current (IDM):** -280A  
- **Gate-Source Voltage (VGS):** ±20V  
- **Power Dissipation (PD):** 200W (at 25°C)  
- **On-Resistance (RDS(on)):** 20mΩ (max at VGS = -10V, ID = -40A)  
- **Threshold Voltage (VGS(th)):** -2V to -4V  
- **Input Capacitance (Ciss):** 3800pF (typical)  
- **Output Capacitance (Coss):** 900pF (typical)  
- **Reverse Transfer Capacitance (Crss):** 150pF (typical)  
- **Turn-On Delay Time (td(on)):** 13ns (typical)  
- **Rise Time (tr):** 60ns (typical)  
- **Turn-Off Delay Time (td(off)):** 44ns (typical)  
- **Fall Time (tf):** 30ns (typical)  
- **Operating Temperature Range:** -55°C to +175°C  
- **Package:** TO-220AB  

### **Description:**
The IRF4905PBF is a high-current P-Channel MOSFET designed for power management applications. It features low on-resistance and high switching speed, making it suitable for switching regulators, motor control, and other high-efficiency power applications.

### **Features:**
- **Low On-Resistance:** Minimizes conduction losses.  
- **High Current Handling:** Supports up to -74A continuous drain current.  
- **Fast Switching:** Optimized for high-frequency applications.  
- **Avalanche Rated:** Robust against high-energy transients.  
- **TO-220 Package:** Provides efficient thermal dissipation.  
- **Lead-Free & RoHS Compliant:** Environmentally friendly.  

This information is based on the manufacturer's datasheet. For detailed performance curves and application notes, refer to Infineon's official documentation.

Application Scenarios & Design Considerations

-55V Single P-Channel HEXFET Power MOSFET in a TO-220AB package

Alternative Part Number

  • FQP47P06 --: P-channel MOSFET with -60V/-47A ratings, close to the IRF4905's -55V/-74A, in a TO-220 package; widely available and a common drop-in for P-channel switching applications.
  • STP55PF06 --: P-channel MOSFET rated -60V/-55A in TO-220, offering comparable voltage and current capability with similar RDS(on), suitable for power switching replacements.
  • IRF9540N --: Well-known P-channel MOSFET, -100V/-19A in TO-220; lower current but higher voltage margin, usable in less demanding P-channel switching circuits as a conservative alternative.

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