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SC431CSK-.5TR from SEMTECH

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SC431CSK-.5TR

Manufacturer: SEMTECH, ST

Adjustable Shunt Regulator

Partnumber Manufacturer Quantity Availability
SC431CSK-.5TR,SC431CSK5TR SEMTECH, ST 4700 In Stock

Description and Introduction

Adjustable Shunt Regulator The part **SC431CSK-.5TR** is manufactured by **SEMTECH**. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Specifications:**  
- **Part Number:** SC431CSK-.5TR  
- **Manufacturer:** SEMTECH  
- **Type:** Adjustable Precision Shunt Regulator  
- **Package:** SC-70 (SOT-323)  
- **Voltage Reference:** 2.5V  
- **Tolerance:** ±1%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Cathode Current Range:** 1mA to 100mA  
- **Output Voltage Adjustable:** Yes (via external resistors)  
- **Low Dynamic Impedance:** 0.2Ω (typical)  

### **Descriptions:**  
The **SC431CSK-.5TR** is a three-terminal adjustable precision shunt regulator with a thermal stability ensured over the full operating temperature range. It is designed for applications requiring a stable voltage reference, such as power supplies, battery chargers, and voltage monitoring circuits.  

### **Features:**  
- **Adjustable Output Voltage** (from 2.5V to 36V)  
- **Low Output Noise**  
- **Wide Operating Current Range** (1mA to 100mA)  
- **High Accuracy Voltage Reference** (±1%)  
- **Low Temperature Coefficient**  
- **Small SC-70 Package** (SOT-323) for space-constrained designs  

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

Application Scenarios & Design Considerations

Adjustable Shunt Regulator

Alternative Part Number

  • TL431ACDBZR --: Industry-standard adjustable shunt voltage reference with 0.5% tolerance grade, pin-compatible SOT-23 function and widely available as a direct functional replacement.
  • LM431AIM3X --: Adjustable precision shunt regulator in SOT-23 package with similar reference voltage and tolerance, suitable drop-in substitute for most SC431 applications.
  • AZ431AN-ATRE1 --: Low-cost adjustable shunt reference in SOT-23 with 0.5% grade option, functionally equivalent to the SC431CSK and readily stocked.
  • LM431ACM3 --: Adjustable shunt voltage reference in SOT-23, functionally equivalent to the SC431 with similar 0.5% tolerance grade and pinout.
  • AZ431AN-B --: Low-cost adjustable shunt reference in SOT-23 with comparable accuracy and voltage range, suitable drop-in replacement.

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