

Overview
The TL431ACDT is a voltage Reference made by STMicroelectronics in a SO-8 package with 8 pins. 0℃~+70℃@(Ta) 100mA 2.495V~36V 600uA Adjustable Parallel ±1% SO-8 Voltage Reference ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:HT431BRZ, from EasyEDA) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 5,025 are in stock at JLCPCB (part C6969). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
7- 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%
Order codes
1- TL431ACDTLCSC C6969
Pinout
8| Pin | Name | Type |
|---|---|---|
| 1 | C | Unspecified |
| 2 | A | Unspecified |
| 3 | A | Unspecified |
| 4 | NC | Unspecified |
| 5 | NC | Unspecified |
| 6 | A | Unspecified |
| 7 | A | Unspecified |
| 8 | REF | Unspecified |
Open-source boards using it
All 1- 2 layers99.1 × 74.9 mm

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Is there a KiCad symbol and footprint for the TL431ACDT?
Yes. The symbol is EasyEDA_Cloud:HT431BRZ and the footprint Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the TL431ACDT?
SO-8, with 8 pins. Its footprint is drawn on this page.
Where is the TL431ACDT datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the TL431ACDT?
JLCPCB lists it as part C6969, with 5,025 in stock; the sellers' links on this page open their listings.
What can replace the TL431ACDT?
Parts like it in the library: the TL431ACD by Texas Instruments, the TL431AID by Texas Instruments, the TL431BVD by onsemi and the TL1431AIYDT by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the TL431ACDT?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8TL431ACD
SOIC-80℃~+70℃ 100mA 2.47V~36V 2.495V~36V 4uA 600uA Adjustable Parallel ±1% SOIC-8 Voltage Reference ROHSTexas InstrumentsVoltage ReferenceTL431AID
SOIC-8-40℃~+85℃ 100mA 2.495V~36V 2.495V~36V 400uA Adjustable Parallel ±1% SOIC-8 Voltage Reference ROHSTexas InstrumentsVoltage ReferenceTL431BVD
SOIC-8-40℃~+125℃@(Ta) 100mA 1mA 2.44V~36V 2.495V~36V 50ppm/℃ Adjustable Parallel ±0.4% SOIC-8 Voltage Reference ROHSonsemiVoltage ReferenceTL1431AIYDT
SO-8-40℃~+125℃@(Ta) 100mA 100ppm/℃ 2.5V~36V 2.5V~36V 700uA Adjustable Parallel ±0.25% SO-8 Voltage Reference ROHSSTMicroelectronicsVoltage ReferenceTL431BID
SOIC-8-40℃~+85℃ 100mA 2.495V~36V 2.495V~36V 700uA Adjustable Parallel ±0.5% SOIC-8 Voltage Reference ROHSTexas InstrumentsVoltage ReferenceTL431AID
SOIC-8-40℃~+85℃@(Ta) 100mA 1mA 2.495V~36V 2.495V~36V 50ppm/℃ Adjustable Parallel ±0.4% SOIC-8 Voltage Reference ROHSonsemiVoltage ReferenceTL1431IDT
SO-8-40℃~+105℃@(Ta) 100mA 100ppm/℃ 1mA 2.5V~36V Adjustable Parallel ±0.4% SO-8 Voltage Reference ROHSSTMicroelectronicsVoltage ReferenceTL431ACD
SOIC-80℃~+70℃@(Ta) 100mA 1mA 2.495V~36V 2.5V~36V 50ppm/℃ Adjustable Parallel ±0.4% SOIC-8 Voltage Reference ROHSonsemiVoltage Reference