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IRFI740B from FAIRCHILD,Fairchild Semiconductor

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IRFI740B

Manufacturer: FAIRCHILD

400V N-Channel MOSFET

Partnumber Manufacturer Quantity Availability
IRFI740B FAIRCHILD 88 In Stock

Description and Introduction

400V N-Channel MOSFET The IRFI740B is a power MOSFET manufactured by Fairchild Semiconductor (now part of ON Semiconductor). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Fairchild Semiconductor  
- **Part Number:** IRFI740B  
- **Type:** N-Channel Power MOSFET  
- **Drain-Source Voltage (VDSS):** 400V  
- **Continuous Drain Current (ID):** 4.3A  
- **Pulsed Drain Current (IDM):** 17A  
- **Power Dissipation (PD):** 42W  
- **Gate-Source Voltage (VGS):** ±20V  
- **On-Resistance (RDS(on)):** 1.0Ω (max) at VGS = 10V  
- **Total Gate Charge (Qg):** 11nC (typical)  
- **Input Capacitance (Ciss):** 350pF (typical)  
- **Output Capacitance (Coss):** 45pF (typical)  
- **Reverse Transfer Capacitance (Crss):** 8pF (typical)  
- **Turn-On Delay Time (td(on)):** 10ns (typical)  
- **Rise Time (tr):** 30ns (typical)  
- **Turn-Off Delay Time (td(off)):** 50ns (typical)  
- **Fall Time (tf):** 20ns (typical)  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** TO-220AB  

### **Descriptions:**
- The IRFI740B is a high-voltage N-Channel MOSFET designed for switching applications.  
- It is suitable for power supplies, motor control, and other high-voltage switching circuits.  
- The device features fast switching speeds and low gate charge for improved efficiency.  

### **Features:**
- **High Voltage Capability:** 400V VDSS rating.  
- **Low On-Resistance:** Minimizes conduction losses.  
- **Fast Switching:** Optimized for high-frequency applications.  
- **Avalanche Energy Rated:** Enhanced ruggedness.  
- **Improved dv/dt Capability:** Reduces spurious turn-on.  
- **TO-220 Package:** Provides efficient thermal dissipation.  

This information is based on Fairchild Semiconductor's datasheet for the IRFI740B.

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