

Overview
The TL431ACLPR is a voltage Reference made by Texas Instruments in a TO-92-3 package with 3 pins. 0℃~+70℃ 100mA 2.495V~36V 2.495V~36V 600uA Adjustable Parallel ±1% TO-92-3 Voltage Reference ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:TL431QPK-TP, from EasyEDA) and its footprint (EasyEDA_Cloud:TO-92-3_L4.9-W3.7-P2.54-L, from EasyEDA), ready for a KiCad board. 18,743 are in stock at JLCPCB (part C80098). 2 open-source boards in 2 repositories on GitHub use it.
Symbol
Footprint
Parameters
8- Minimum Cathode Current for Regulation
- 600uA
- Operating Temperature
- 0℃~+70℃
- Output Current
- 100mA
- Output Type
- Adjustable
- Output Voltage
- 2.495V~36V
- Reference Type
- Parallel
- Tolerance
- ±1%
- Voltage - Supply
- 2.495V~36V
Order codes
1- TL431ACLPRLCSC C80098
Pinout
3| Pin | Name | Type |
|---|---|---|
| 1 | REF | Unspecified |
| 2 | ANODE | Unspecified |
| 3 | CATHODE | Unspecified |
Open-source boards using it
All 2- 2 layers174.2 × 124 mm

- 2 layers180 × 130 mm

Cell test bench
0hasant/Liion_Cell_Simulator
Single-cell characterization bench for 18650 and 21700 Li-ion cells (DMEGC INR45E, generic 3.5 Ah 18650). Part of the Solaris final-year project.
133 parts
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/ti/TL431ACLPR" title="TL431ACLPR in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ti/TL431ACLPR.jpg" alt="TL431ACLPR" width="1200" height="900">[](https://pcbkit.io/parts/ti/TL431ACLPR)Questions
Is there a KiCad symbol and footprint for the TL431ACLPR?
Yes. The symbol is EasyEDA_Cloud:TL431QPK-TP and the footprint EasyEDA_Cloud:TO-92-3_L4.9-W3.7-P2.54-L, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the TL431ACLPR?
TO-92-3, with 3 pins. Its footprint is drawn on this page.
Where is the TL431ACLPR datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the TL431ACLPR?
JLCPCB lists it as part C80098, with 18,743 in stock; the sellers' links on this page open their listings.
What can replace the TL431ACLPR?
Parts like it in the library: the AZ431AZ-ATRE1 by Diodes Incorporated, the TL431CLPRP by onsemi, the TL431AILPR by Texas Instruments and the AS431AZTR-E1 by Diodes Incorporated. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the TL431ACLPR?
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8AZ431AZ-ATRE1
TO-92-2.54mm-40℃~+125℃@(Ta) 100mA 1mA 2.5V~36V 2.5V~36V 20ppm/℃ Adjustable Parallel ±0.4% TO-92-2.54mm Voltage Reference ROHSDiodes IncorporatedVoltage ReferenceTL431CLPRP
TO-92-2.54mm0℃~+70℃@(Ta) 100mA 1mA 2.495V~36V 2.495V~36V 50ppm/℃ Adjustable Parallel ±1% TO-92-2.54mm Voltage Reference ROHSonsemiVoltage ReferenceTL431AILPR
TO-92-2.54mm-40℃~+85℃ 100mA 1mA 2.5V~36V 2.5V~36V Adjustable Parallel ±1% TO-92-2.54mm Voltage Reference ROHSTexas InstrumentsVoltage ReferenceAS431AZTR-E1
TO-92-3-40℃~+125℃@(Ta) 100mA 2.5V~36V 2.5V~36V 20ppm/℃ 400uA Adjustable Parallel ±0.5% TO-92-3 Voltage Reference ROHSDiodes IncorporatedVoltage ReferenceTL431ATA
TO-92-2.54mm-40℃~+125℃@(Ta) 1.8uA 150mA 2.495V~40V 2.495V~40V 500uA 50ppm/℃ Adjustable Parallel ±1% TO-92-2.54mm Voltage Reference ROHSHTC Korea TAEJIN TechVoltage ReferenceAZ431LAZTR-G1
TO-92-3-40℃~+125℃@(Ta) 1.24V~18V 100mA 20ppm/℃ Adjustable Parallel ±0.5% TO-92-3 Voltage Reference ROHSDiodes IncorporatedVoltage ReferenceTL431BQLPR
TO-92-3-40℃~+125℃@(Ta) 100mA 2.495V~36V 2.495V~36V 700uA Adjustable Parallel ±0.5% TO-92-3 Voltage Reference ROHSTexas InstrumentsVoltage ReferenceKIA431A-AT/PW
TO-92-2.54mm-40℃~+85℃@(Ta) 100mA 1mA 2.495V~36V 2.5V~36V Adjustable Parallel ±1% TO-92-2.54mm Voltage Reference ROHSKEC SemiconVoltage Reference