KA431LZTA

$0.41

Description：IC VREF SHUNT ADJ 0.5% TO92-3
Series：-
Mfr：onsemi
Package：Cut Tape (CT),Tape & Box (TB)

SKU:5b6c4e570a87 Category: Voltage Reference Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT ADJ 0.5% TO92-3
Series：-
Mfr：onsemi
Package：Cut Tape (CT),Tape & Box (TB)
Output Type：Adjustable
Voltage - Output (Min/Fixed)：2.495V
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：-

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KA431LZTA

Overview

The KA431LZTA is a three-terminal adjustable shunt regulator manufactured by onsemi, housed in a TO-92 package. It features a guaranteed thermal stability over the operating temperature range and an active output circuit for sharp turn-on characteristics. The device functions as a programmable voltage reference with an internal reference voltage of approximately 2.5V. Output voltage is externally adjustable between VREF and 36V using two resistors. It offers a typical dynamic output impedance of 0.2 ohm and serves as a high-performance alternative to Zener diodes.

Feature Summary

Three-terminal adjustable regulator with guaranteed thermal stability across the operating temperature range
Active output circuitry provides sharp turn-on characteristics for precise regulation
Typical dynamic output impedance of 0.2 ohm ensures stable performance
Programmable output voltage range from internal reference up to 36V

Applications

Current limit circuits
Current source regulators
Zener diode replacement applications

Procurement Notes

Verify component authenticity through authorized onsemi distribution channels. Confirm that the specific suffix matches the required TO-92 fan-fold packaging configuration. Ensure compatibility with existing thermal management designs given the package constraints. Cross-reference datasheet specifications against current design requirements before finalizing procurement decisions.

Selection Notes

Select this component when a low-cost, adjustable shunt regulator is required for general-purpose voltage referencing. The TO-92 package suits through-hole assembly processes. Consider the 0.2 ohm dynamic impedance for applications demanding stable regulation under varying load conditions. Validate that the 36V maximum output range aligns with system voltage requirements.

Part Context

The KA431LZTA belongs to the KA431 family of programmable shunt regulators produced by onsemi. This series is widely utilized in power supply feedback loops and voltage reference applications. The device shares functional similarities with industry-standard TL431 components but is distinguished by its specific manufacturing process and thermal stability guarantees provided by onsemi.