TL431BCDBZT

$0.71

Description：IC VREF SHUNT ADJ 0.5% SOT23-3
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:cb25e3ee3e65 Category: Voltage Reference Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT ADJ 0.5% SOT23-3
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Output Type：Adjustable
Voltage - Output (Min/Fixed)：2.495V
Voltage - Output (Max)：36 V
Current - Output：100 mA
Operating Temperature：0°C ~ 70°C (TA)
Mounting Type：Surface Mount
Package / Case：TO-236-3, SC-59, SOT-23-3
Supplier Device Package：SOT-23-3
Grade：-
Qualification：-

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TL431BCDBZT

Overview

The TL431BCDBZT is an adjustable precision shunt regulator from Texas Instruments, housed in a surface-mount SOT-23-3 package. It provides an output voltage range of 2.495V to 36V with an initial accuracy of ±0.5%. The device supports a maximum cathode current of 100mA and operates within a temperature range of 0°C to 70°C. It features a typical temperature coefficient of 92ppm/°C and requires a minimum cathode current of 600µA for regulation.

Feature Summary

Provides precise adjustable voltage reference functionality via external resistor divider
Ensures stable regulation through low temperature coefficient characteristics
Supports high cathode current capability for driving loads directly

Applications

Precision power supply feedback loops
On-board regulation circuits
DC-to-DC converter control references

Procurement Notes

Verify the specific suffix 'B' indicates the 0.5% accuracy grade distinct from standard variants. Confirm the 'DBZT' designation corresponds to the SOT-23-3 tape and reel packaging format. Ensure compatibility with RoHS3 compliance requirements for the target assembly process.

Selection Notes

Select this component when a compact SOT-23-3 footprint is required alongside tighter than standard tolerance specifications. The 0.5% initial accuracy suits applications demanding higher reference precision without requiring external trimming. Verify that the 0°C to 70°C operating range meets the environmental constraints of the final system design.

Part Context

This part belongs to the widely utilized TL431 family of programmable shunt regulators. It serves as a direct replacement for legacy discrete zener diode references, offering superior stability and lower dynamic impedance. The device is commonly integrated into isolated and non-isolated power conversion topologies.

Replacement Considerations

Compatible substitutes include the TL431ACDBZT for wider temperature ranges or the TL431BQDBZTG4 for automotive qualification. Cross-vendor equivalents such as the NCP431ACSNT1G may be considered if pinout and electrical parameters align.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

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Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

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Mode of Transportation

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Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.