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KA5Q1265RFYDTU from FAIRFSC,Fairchild Semiconductor

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KA5Q1265RFYDTU

Manufacturer: FAIRFSC

Fairchild Power Switch(FPS)

Partnumber Manufacturer Quantity Availability
KA5Q1265RFYDTU FAIRFSC 24 In Stock

Description and Introduction

Fairchild Power Switch(FPS) The KA5Q1265RFYDTU is a power switch IC manufactured by FAIRCHILD (now part of ON Semiconductor).  

### **Specifications:**  
- **Manufacturer:** FAIRCHILD (ON Semiconductor)  
- **Part Number:** KA5Q1265RFYDTU  
- **Type:** Power Switch IC  
- **Package:** TO-220F-5L (isolated tab)  
- **Input Voltage Range:** 85V to 265V AC (universal input)  
- **Output Power:** Up to 100W (depending on design)  
- **Switching Frequency:** Fixed at 66kHz  
- **Operating Mode:** Quasi-Resonant (QR) operation for improved efficiency  
- **Protection Features:**  
  - Overvoltage Protection (OVP)  
  - Overload Protection (OLP)  
  - Overcurrent Protection (OCP)  
  - Thermal Shutdown (TSD)  

### **Descriptions:**  
The KA5Q1265RFYDTU is a high-voltage power switch IC designed for offline switch-mode power supplies (SMPS). It integrates a high-voltage MOSFET with a PWM controller, reducing external component count. It is commonly used in AC/DC adapters, LCD monitors, and other power supply applications.  

### **Features:**  
- **Integrated High-Voltage MOSFET** (650V, 2.5A)  
- **Quasi-Resonant Operation** for high efficiency  
- **Low Standby Power Consumption** (<1W)  
- **Built-in Soft Start** for reduced inrush current  
- **Frequency Jittering** for improved EMI performance  
- **Auto-Restart Protection** for fault recovery  

This IC is designed for cost-effective and compact power supply solutions.

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