TL431D

ALJ

-40℃~+125℃ 100mA 2.495V~36V 2.495V~36V 40uA Adjustable Parallel ±0.4% SOT-23 Voltage Reference ROHS

Extended

Category: Voltage Reference
Package: SOT-23
Pins: 3

Overview

The TL431D is a voltage Reference made by ALJ in a SOT-23 package with 3 pins. -40℃~+125℃ 100mA 2.495V~36V 2.495V~36V 40uA Adjustable Parallel ±0.4% SOT-23 Voltage Reference ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:HT431AN, from EasyEDA) and its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. 68,894 are in stock at JLCPCB (part C22392283). 21 open-source boards in 19 repositories on GitHub use it.

Symbol

EasyEDA_Cloud:HT431ANFrom EasyEDA

Footprint

Package_TO_SOT_SMD:SOT-23From KiCad's library

Parameters

Minimum Cathode Current for Regulation: 40uA
Operating Temperature: -40℃~+125℃
Output Current: 100mA
Output Type: Fixed
Output Voltage: 2.495V
Reference Type: Parallel
Tolerance: ±0.4%
Voltage - Supply: 2.495V~36V

Order codes

TL431DLCSC C22392283

Pinout

The pins of the TL431D
Pin	Name	Type
1	REF	Unspecified
2	K	Unspecified
3	A	Unspecified

Open-source boards using it

All 21

2 layers73.9 × 46 mm
TDR avalanche
MR-DOS/TDR-avalanche
Avalanche pulser for use as TDR core
80 parts11GPL-3.0
2 layers147 × 76 mm
A1200-psu
nbolton/amiga
My personal open source Amiga works (A1200 PSU schematic, etc)
64 parts10
2 layers100 × 74 mm
Qym solder
basson/qym-solder
QymSolder - Soldering station three in one - hakko t12, hot air gun, d909/898D or analog.
135 parts4GPL-3.0
2 layers73 × 66 mm
Przetwora v2
ThertyOne/bird-feeder
Z wyjścia baterii energia trafia do przetwornicy boost 5 V, zbudowanej od podstaw na bazie generatora PWM LMC555 i MOSFETa IRLML6344, która zasila ESP32 i peryferia – serwo sterujące karmnikiem, LEDy oświetleniowe oraz…
34 parts1
2 layers108.3 × 48 mm
220-240AC-5v@2ACONVERTER
abrshzeth/220V-240V-ac-to-5V-2A-dc-power-coversion
this is the circuit which have input of ac input(common outlet from our home) and it will convert it to stable 5V@2A.
27 parts
4 layers110 × 36.6 mm
XL4015-DC DC Buck Converter Schematic
ajvizganapathy-pixel/XL4015-BuckConverter-5A-PCB
XL4015 5A step-down buck converter — KiCad PCB, gerbers, datasheets
29 parts
2 layers
TP Integrador
Amalia-O/TDCE
FIUBA - Electrónica - Taller de Diseño de Circuitos Electrónicos - Trabajo Integrador
39 parts
4 layers100.5 × 82.8 mm
Tssi rtml
broncoracing/tssi-rtml
BR25e TSSI RTML board
94 parts

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A picture

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A picture that opens the part, for a README

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Questions

Is there a KiCad symbol and footprint for the TL431D?

Yes. The symbol is EasyEDA_Cloud:HT431AN and the footprint Package_TO_SOT_SMD:SOT-23, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the TL431D?

SOT-23, with 3 pins. Its footprint is drawn on this page.

Where is the TL431D datasheet?

ALJ publishes it: the Datasheet link on this page opens it.

Where can I order the TL431D?

JLCPCB lists it as part C22392283, with 68,894 in stock; the sellers' links on this page open their listings.

Which open-source boards use the TL431D?

21 boards in 19 repositories on GitHub; the most starred are listed on this page, with their KiCad files.