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KA431SMF2TF from FAIRCHILD,Fairchild Semiconductor

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KA431SMF2TF

Manufacturer: FAIRCHILD

Adjustable/2.5V, 2% Tolerance Shunt Regulator

Partnumber Manufacturer Quantity Availability
KA431SMF2TF FAIRCHILD 753000 In Stock

Description and Introduction

Adjustable/2.5V, 2% Tolerance Shunt Regulator The KA431SMF2TF is a shunt regulator manufactured by Fairchild Semiconductor (now part of ON Semiconductor). Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Reference Voltage:** 2.495V (Typical)  
- **Operating Cathode Current Range:** 1mA to 100mA  
- **Output Voltage Adjustable:** From Vref (~2.5V) to 36V  
- **Tolerance on Reference Voltage:** ±1% (A Grade), ±2% (Standard)  
- **Low Dynamic Output Impedance:** 0.2Ω (Typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOT-23-3 (Surface Mount)  

### **Descriptions:**  
- The KA431SMF2TF is a three-terminal adjustable precision shunt regulator.  
- It provides a stable reference voltage with high accuracy.  
- Commonly used in power supplies, voltage monitoring, and error amplifiers.  

### **Features:**  
- **Adjustable Output Voltage** via external resistors.  
- **Low Output Noise** for precision applications.  
- **Wide Operating Current Range** (1mA to 100mA).  
- **Low Temperature Drift** for stable performance.  
- **SOT-23-3 Package** for space-constrained designs.  

This information is based on Fairchild's datasheet for the KA431SMF2TF.

Partnumber Manufacturer Quantity Availability
KA431SMF2TF FSC 2050 In Stock

Description and Introduction

Adjustable/2.5V, 2% Tolerance Shunt Regulator The KA431SMF2TF is a shunt regulator IC manufactured by FSC (Fairchild Semiconductor). Below are the factual details from Ic-phoenix technical data files:

### **Manufacturer:**  
- **FSC (Fairchild Semiconductor)**  

### **Specifications:**  
- **Type:** Adjustable Precision Shunt Regulator  
- **Reference Voltage:** 2.5V (Typical)  
- **Operating Cathode Current Range:** 1mA to 100mA  
- **Output Voltage Adjustable:** Up to 36V  
- **Tolerance:** ±0.5%, ±1%, ±2% (depending on variant)  
- **Package:** SOT-23-3 (Small Outline Transistor)  

### **Descriptions:**  
- The KA431SMF2TF is a three-terminal adjustable shunt regulator with thermal stability.  
- It is commonly used in power supply circuits, voltage monitoring, and precision voltage references.  
- The device provides a stable reference voltage with low dynamic impedance.  

### **Features:**  
- **Low Output Noise**  
- **Low Temperature Drift**  
- **Wide Operating Current Range (1mA to 100mA)**  
- **Equivalent to Industry Standard TL431**  
- **Suitable for Switching Power Supplies, Battery Chargers, and Voltage References**  

This information is based on the manufacturer's datasheet and technical documentation.

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