ZTL431BFTA

$0.59

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

SKU:fa238995610a Category: Voltage Reference Brand: Diodes Incorporated

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT ADJ 0.5% SOT23
Series：-
Mfr：Diodes Incorporated
Package：Tape & Reel (TR),Cut Tape (CT)
Output Type：Adjustable
Voltage - Output (Min/Fixed)：2.5V
Voltage - Output (Max)：20 V
Current - Output：100 mA
Operating Temperature：-40°C ~ 125°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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ZTL431BFTA

Overview

The ZTL431BFTA is a three-terminal adjustable precision shunt regulator from Diodes Incorporated, housed in an SOT-23 package. It offers a reference voltage tolerance of 0.5% at +25°C and operates within an ambient temperature range of -40°C to +125°C. The output voltage is programmable between 2.5V and 20V using two external divider resistors. Key electrical characteristics include a typical dynamic output impedance of 0.2Ω and a sink current capability ranging from 1mA to 100mA.

Feature Summary

Provides excellent temperature stability with a standard operating range of -40°C to +125°C.
Features low dynamic output impedance for stable regulation performance.
Offers high sink current handling capability up to 100mA.
Totally lead-free and fully RoHS compliant.

Applications

Opto-Coupler Linearization
Linear Regulators
Improved Zener Replacement
Variable Reference

Procurement Notes

Verify the specific B-grade designation ensures the required 0.5% initial tolerance for your circuit design. Confirm that the SOT-23 footprint matches your PCB layout requirements. Ensure the maximum cathode voltage rating of 20V aligns with your system's operational limits. Check for any recent product change notices regarding manufacturing updates.

Selection Notes

Select this component when a cost-effective alternative to standard Zener diodes is needed with improved performance. The B-grade variant is suitable for applications requiring tighter voltage accuracy than the A-grade version. Consider the thermal dissipation capabilities of the SOT-23 package under your expected load conditions.

Part Context

This device belongs to the ZTL431/ZTL432 family, which are functionally equivalent to the TL431/TL432 series but feature a lower maximum operation voltage. The ZTL431 variant utilizes a standard pinout configuration distinct from the ZTL432. This specific part represents the B-grade option within the ZTL431 lineup.