
Overview
The TL431U is a voltage Reference made by TDD in a SOT-89 package with 5 pins. SOT-89 Voltage Reference ROHS.
PCBKit's library has its footprint (Package_TO_SOT_SMD:SOT-89-3, from KiCad's library), ready for a KiCad board. 2,720 are in stock at JLCPCB (part C55488633).
Symbol
The library has no symbol for this part yet.
Footprint
Order codes
1- TL431ULCSC C55488633
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<iframe src="https://pcbkit.io/embed/parts/tdd/TL431U" title="TL431U in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/tdd/TL431U.jpg" alt="TL431U" width="1200" height="900">[](https://pcbkit.io/parts/tdd/TL431U)Questions
Is there a KiCad symbol and footprint for the TL431U?
Yes. the footprint Package_TO_SOT_SMD:SOT-89-3, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the TL431U?
SOT-89, with 5 pins. Its footprint is drawn on this page.
Where can I order the TL431U?
JLCPCB lists it as part C55488633, with 2,720 in stock; the sellers' links on this page open their listings.
What can replace the TL431U?
Parts like it in the library: the CJ431 by Jiangsu Changjing Electronics Technology (CJ), the AZ431AR-ATRE1 by Diodes Incorporated, the MMBT431LT1 by ALJ and the TL431AIPK by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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