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STF8NK85Z

N-CHANNEL 850V -1.1Ohm

Partnumber Manufacturer Quantity Availability
STF8NK85Z 40 In Stock

Description and Introduction

N-CHANNEL 850V -1.1Ohm The STF8NK85Z is an N-channel MOSFET manufactured by STMicroelectronics. Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Drain-Source Voltage (VDS):** 850V  
- **Gate-Source Voltage (VGS):** ±30V  
- **Continuous Drain Current (ID):** 8A (at 25°C)  
- **Pulsed Drain Current (IDM):** 32A  
- **Power Dissipation (PD):** 190W  
- **On-Resistance (RDS(on)):** 1.2Ω (max) at VGS = 10V  
- **Threshold Voltage (VGS(th)):** 3V (min), 5V (max)  
- **Input Capacitance (Ciss):** 1200pF (typ)  
- **Output Capacitance (Coss):** 180pF (typ)  
- **Reverse Transfer Capacitance (Crss):** 15pF (typ)  
- **Turn-On Delay Time (td(on)):** 15ns (typ)  
- **Turn-Off Delay Time (td(off)):** 60ns (typ)  
- **Operating Temperature Range:** -55°C to 150°C  

### **Description:**  
The STF8NK85Z is a high-voltage N-channel MOSFET designed for power switching applications. It features low gate charge, fast switching performance, and high ruggedness, making it suitable for various power management and conversion systems.  

### **Features:**  
- **High Voltage Capability (850V)**  
- **Low On-Resistance (1.2Ω max)**  
- **Fast Switching Speed**  
- **Low Gate Charge**  
- **Avalanche Energy Specified**  
- **100% Avalanche Tested**  
- **Improved dv/dt Capability**  
- **TO-220FP Package (Insulated)**  

This MOSFET is commonly used in applications such as power supplies, motor control, lighting, and industrial systems.  

Would you like any additional details?

Application Scenarios & Design Considerations

N-CHANNEL 850V -1.1Ohm

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