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ZR431LF01TA from ZETEX

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ZR431LF01TA

Manufacturer: ZETEX, DIODES

ADJUSTABLE PRECISION SHUNT REGULATOR

Partnumber Manufacturer Quantity Availability
ZR431LF01TA ZETEX, DIODES 24200 In Stock

Description and Introduction

ADJUSTABLE PRECISION SHUNT REGULATOR The part **ZR431LF01TA** is manufactured by **ZETEX** (now part of Diodes Incorporated). Below are the specifications, descriptions, and features based on available data:

### **Specifications:**  
- **Type:** Adjustable Precision Shunt Regulator (Voltage Reference)  
- **Voltage Reference:** 2.5V (adjustable via external resistors)  
- **Operating Voltage Range:** 1.24V to 18V  
- **Output Current:** Up to 100mA  
- **Tolerance:** ±0.5% (typical)  
- **Temperature Range:** -40°C to +125°C  
- **Package:** SOT-23 (3-pin)  

### **Descriptions:**  
- The **ZR431LF01TA** is a low-voltage, adjustable shunt regulator designed for precision voltage reference applications.  
- It is a low-power alternative to the TL431, with improved performance in low-voltage circuits.  
- Suitable for power supplies, battery chargers, and voltage monitoring systems.  

### **Features:**  
- **Low Operating Current:** Typically 80µA (lower than standard shunt regulators).  
- **High Accuracy:** Tight voltage reference tolerance (±0.5%).  
- **Adjustable Output:** Voltage can be set using external resistors.  
- **Wide Operating Range:** Supports voltages down to 1.24V.  
- **Stable Performance:** Stable over temperature and load variations.  
- **Small Footprint:** SOT-23 package for space-constrained designs.  

For exact datasheet details, refer to the official documentation from Diodes Incorporated (formerly ZETEX).

Application Scenarios & Design Considerations

ADJUSTABLE PRECISION SHUNT REGULATOR

Alternative Part Number

  • TL431AILP --: Industry-standard adjustable shunt regulator with the same 2.5V reference and function; widely available and pin-compatible in most designs.
  • LM431ACZ --: Adjustable precision shunt regulator equivalent to the ZR431 family, offering similar tolerance and current capability.
  • KA431AZ --: Low-cost adjustable shunt regulator with comparable reference voltage and operating current, suitable as a drop-in functional replacement.
  • LM431AIM3 --: Adjustable precision shunt regulator in SOT-23, similar voltage reference behavior and tolerance suitable for most ZR431 applications.
  • KA431AZTA --: Low-cost adjustable shunt regulator with comparable reference voltage and current capability, commonly used as a cross for ZR431 types.

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