LM431ACZX

$0.07

Description：ADJUSTABLE/2.5 V, 2% TOLERANCE S
Series：-
Mfr：Fairchild Semiconductor
Package：Bulk

SKU:73b2654d5be5 Category: Voltage Reference Brand: Fairchild Semiconductor

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Product introduction

LM431ACZX is listed in the Voltage Reference range at ChipApex. The manufacturer field lists Fairchild Semiconductor. Its product description is ADJUSTABLE/2.5 V, 2% TOLERANCE S. Review the specifications below when checking this part for your BOM.

Voltage Reference specifications for LM431ACZX

Description：ADJUSTABLE/2.5 V, 2% TOLERANCE S
Series：-
Mfr：Fairchild Semiconductor
Package：Bulk
Output Type：Adjustable
Voltage - Output (Min/Fixed)：2.5V
Voltage - Output (Max)：36 V
Current - Output：100 mA
Operating Temperature：-25°C ~ 85°C (TA)
Mounting Type：Through Hole
Package / Case：TO-226-3, TO-92-3 (TO-226AA) Formed Leads
Supplier Device Package：TO-92-3
Grade：-
Qualification：-

Voltage Reference datasheet and documents for LM431ACZX

LM431ACZX

Voltage Reference Overview

The LM431ACZX is a three-terminal programmable shunt regulator manufactured by Fairchild Semiconductor. It operates within an input voltage range up to 37 V and supports a maximum shunt current of 100 mA. The device features an adjustable output voltage set between 2.495 V and 36 V using two external resistors. Initial accuracy is specified at 1%, with a temperature coefficient of 50 ppm/°C. It functions over a minimum operating temperature of -25°C and a maximum of +85°C, housed in a TO-92 package.

Voltage Reference Feature Summary

Programmable output voltage capability allowing precise setting via external resistors
Low dynamic output impedance for stable regulation performance
Active output circuit providing sharp turn-on characteristics

Voltage Reference Applications

Replacement for Zener diodes in precision voltage reference circuits
Local voltage regulation in power supply designs
Comparator function in analog signal processing

Voltage Reference Procurement Notes

Verify the specific suffix ACZX against the manufacturer's official datasheet to confirm tolerance and package variations. Ensure compatibility with existing thermal management requirements given the TO-92 form factor. Confirm RoHS compliance status through current documentation as product specifications may evolve. Cross-reference pinout assignments with the target PCB layout to prevent installation errors during assembly.

Voltage Reference Selection Notes

Select this component when a low-cost, high-accuracy adjustable reference is required in through-hole applications. The 1% initial accuracy suits designs needing tighter tolerance than standard Zener diodes. Consider the 50 ppm/°C temperature coefficient for environments with moderate thermal fluctuations. Evaluate the 100 mA sink current limit against peak load demands to ensure adequate headroom for transient conditions.

Voltage Reference Part Context

The LM431 series represents a widely adopted family of adjustable shunt regulators used across various electronic industries. Manufactured by Fairchild Semiconductor, these devices serve as versatile alternatives to fixed voltage references. The LM431ACZX specifically denotes the variant with 1% initial accuracy and TO-92 packaging, fitting into the broader portfolio of precision voltage control components.