TL431

$0.23

Description：2.495V~36V 500A 100MA ADJUSTABLE
Series：-
Mfr：EVVO
Package：Bulk

SKU:31c8b5418f73 Category: Voltage Reference Brand: EVVO

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Product introduction

Product Detailed Parameters

Description：2.495V~36V 500A 100MA ADJUSTABLE
Series：-
Mfr：EVVO
Package：Bulk
Output Type：-
Voltage - Output (Min/Fixed)：-
Voltage - Output (Max)：-
Current - Output：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Grade：-
Qualification：-

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TL431

Overview

The EVVO TL431 is a three-terminal adjustable precision shunt regulator housed in an SOT-23 package. It provides a reference voltage (Vref) of 2.500 V with 0.4% or 0.8% tolerance. The output voltage is programmable from 2.5 V to 36 V using two external resistors. Operating conditions include a cathode current range of 1.0 mA to 100 mA and an ambient temperature range of -40 °C to +125 °C. Dynamic impedance is typically 0.15 Ω, with a maximum of 0.5 Ω.

Feature Summary

Adjustable output voltage set via external resistor divider network
Active output circuitry providing sharp turn-on characteristics
Specified thermal stability across the full industrial operating temperature range

Applications

Shunt regulators
High-current shunt regulators
Precision current limiters

Procurement Notes

Verify that the specific part number matches the required voltage tolerance (0.4% or 0.8%) and confirm the SOT-23 package type. Ensure the supplier documentation explicitly lists the -40 °C to +125 °C operating range for the intended application environment.

Selection Notes

Select this component when a low-cost, high-precision reference is needed for feedback loops. The device requires a minimum cathode current of 1.0 mA for regulation. Verify that the load capacitance does not exceed stability limits defined in the datasheet to prevent oscillation.

Part Context

This device belongs to the TL431 family of programmable precision references. It serves as a direct replacement for Zener diodes in many applications due to its superior accuracy and lower dynamic impedance. The SOT-23 form factor allows for compact surface-mount designs.

Replacement Considerations

Compatible substitutes include JTL431A, JTL431B, and standard TL431 variants from other manufacturers. Verify pinout compatibility (Anode, Cathode, Reference) and ensure equivalent electrical parameters are met.