Product overview
Description
The TL1431 is a adjustable shunt voltage reference with guaranteed temperature stability over the entire operating temperature range.
The output voltage may be set to any value between 2.5 V and 36 V with two external resistors.
The TL1431 operates with a wide current range from 1 to 100 mA with a typical dynamic impedance of 0.2 Ω.
-
All features
- Adjustable output voltage: VREF to 36 V
- Sink current capability: 1 to 100 mA
- Typical output impedance: 0.22 Ω
- 0.4% and 0.25% voltage precision
- Automotive temp. range - 40 °C to +125 °C
Recommended for you
All resources
Resource title | Version | Latest update |
---|
Product Specifications (1)
Resource title | Version | Latest update | ||
---|---|---|---|---|
9.0 | 07 Dec 2017 | 07 Dec 2017 |
Brochures (2)
Resource title | Version | Latest update | ||
---|---|---|---|---|
3.0 | 27 Jul 2022 | 27 Jul 2022 | ||
12.2024 | 09 Jan 2025 | 09 Jan 2025 |
EDA Symbols, Footprints and 3D Models
STMicroelectronics - TL1431
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Symbols

Footprints

3D models
Quality and Reliability
Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
---|---|---|---|---|---|
TL1431ACCT | Active | SOT323-6L | Industrial | Ecopack2 | |
TL1431ACDT | Active | SO-8 | Industrial | Ecopack3 | |
TL1431ACL3T | Active | SOT23 | Industrial | Ecopack2 | |
TL1431ACL5T | Active | SOT23-5L | Industrial | Ecopack2 | |
TL1431ACZ | Active | TO-92 | Industrial | Ecopack2 | |
TL1431ACZ-AP | Active | TO-92 | Industrial | Ecopack2 | |
TL1431ACZT | Active | TO-92 | Industrial | Ecopack2 | |
TL1431AIDT | Active | SO-8 | Industrial | Ecopack3 | |
TL1431AIYDT | Active | SO-8 | Automotive | Ecopack3 | |
TL1431AIZ-AP | Active | TO-92 | Industrial | Ecopack2 | |
TL1431AIZT | Active | TO-92 | Industrial | Ecopack2 | |
TL1431CCT | Active | SOT323-6L | Industrial | Ecopack2 | |
TL1431CDT | Active | SO-8 | Industrial | Ecopack3 | |
TL1431CL3T | Active | SOT23 | Industrial | Ecopack2 | |
TL1431CL5T | Active | SOT23-5L | Industrial | Ecopack2 | |
TL1431CZ-AP | Active | TO-92 | Industrial | Ecopack2 | |
TL1431CZT | Active | TO-92 | Industrial | Ecopack2 | |
TL1431IDT | Active | SO-8 | Industrial | Ecopack3 | |
TL1431IYDT | Active | SO-8 | Automotive | Ecopack3 | |
TL1431IZ | Active | TO-92 | Industrial | Ecopack2 | |
TL1431IZ-AP | Active | TO-92 | Industrial | Ecopack2 | |
TL1431IZT | Active | TO-92 | Industrial | Ecopack2 | |
Marketing Status
Package
SOT323-6L
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
SO-8
Grade
Industrial
RoHS Compliance Grade
Ecopack3
Marketing Status
Package
SOT23
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
SOT23-5L
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
TO-92
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
TO-92
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
TO-92
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
SO-8
Grade
Industrial
RoHS Compliance Grade
Ecopack3
Marketing Status
Package
SO-8
Grade
Automotive
RoHS Compliance Grade
Ecopack3
Marketing Status
Package
TO-92
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
TO-92
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
SOT323-6L
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
SO-8
Grade
Industrial
RoHS Compliance Grade
Ecopack3
Marketing Status
Package
SOT23
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
SOT23-5L
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
TO-92
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
TO-92
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
SO-8
Grade
Industrial
RoHS Compliance Grade
Ecopack3
Marketing Status
Package
SO-8
Grade
Automotive
RoHS Compliance Grade
Ecopack3
Marketing Status
Package
TO-92
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
TO-92
Grade
Industrial
RoHS Compliance Grade
Ecopack2
Marketing Status
Package
TO-92
Grade
Industrial
RoHS Compliance Grade
Ecopack2
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | ||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
min | max | |||||||||||||||||||||||||||||||||||||||||||||||
TL1431ACZ | Active | 0.198 / 1k | Available at 4 distributors Distributor availability of TL1431ACZ
Distributor reported inventory date: 3/15/2025 | | | | Buy from Distributor | | TO-92 | Poly Bag | CHINA | EAR99 | NEC | -20 | 70 | |||||||||||||||||||||||||||||||||
TL1431IZ | Active | 0.325 / 1k | Available at 3 distributors Distributor availability of TL1431IZ
Distributor reported inventory date: 3/15/2025 | | | | Buy from Distributor | | TO-92 | Poly Bag | CHINA | EAR99 | NEC | -40 | 105 | |||||||||||||||||||||||||||||||||
TL1431ACZT | Active | 0.198 / 1k | Available at 3 distributors Distributor availability of TL1431ACZT
Distributor reported inventory date: 3/15/2025 | | | | Buy from Distributor | | TO-92 | Tape and Reel | CHINA | EAR99 | NEC | -20 | 70 | |||||||||||||||||||||||||||||||||
TL1431AIZ-AP | Active | 0.201 / 1k | Available at distributors Distributor availability of TL1431AIZ-AP
Distributor reported inventory date: | | | | Buy from Distributor | | TO-92 | Ammopack | CHINA | EAR99 | NEC | -40 | 105 | |||||||||||||||||||||||||||||||||
TL1431IYDT | Active | 0.242 / 1k | Available at 2 distributors Distributor availability of TL1431IYDT
Distributor reported inventory date: 3/15/2025 | | | | Buy from Distributor | | SO-8 | Tape and Reel | MOROCCO | EAR99 | NEC | -40 | 105 | |||||||||||||||||||||||||||||||||
TL1431IZ-AP | Active | 0.325 / 1k | Available at 1 distributors Distributor availability of TL1431IZ-AP
Distributor reported inventory date: 3/15/2025 | | | | Buy from Distributor | | TO-92 | Ammopack | CHINA | EAR99 | NEC | -40 | 105 | |||||||||||||||||||||||||||||||||
TL1431ACCT | Active | 0.195 / 1k | Available at distributors Distributor availability of TL1431ACCT
Distributor reported inventory date: | | | | Buy from Distributor | | SOT323-6L | Tape and Reel | MALAYSIA | EAR99 | NEC | -20 | 70 | |||||||||||||||||||||||||||||||||
TL1431AIYDT | Active | 0.245 / 1k | Available at 2 distributors Distributor availability of TL1431AIYDT
Distributor reported inventory date: 3/15/2025 | | | | Buy from Distributor | | SO-8 | Tape and Reel | MOROCCO | EAR99 | NEC | -40 | 105 | |||||||||||||||||||||||||||||||||
TL1431CL5T | Active | 0.1519 / 1k | Available at 2 distributors Distributor availability of TL1431CL5T
Distributor reported inventory date: 3/15/2025 | | | | Buy from Distributor | | SOT23-5L | Tape and Reel | MALAYSIA | EAR99 | NEC | -20 | 70 | |||||||||||||||||||||||||||||||||
TL1431CL3T | Active | 0.1519 / 1k | Available at 2 distributors Distributor availability of TL1431CL3T
Distributor reported inventory date: 3/15/2025 | | | | Buy from Distributor | | SOT23 | Tape and Reel | MALAYSIA | EAR99 | NEC | -20 | 70 | |||||||||||||||||||||||||||||||||
TL1431CZT | Active | 0.1519 / 1k | Available at 2 distributors Distributor availability of TL1431CZT
Distributor reported inventory date: 3/15/2025 | | | | Buy from Distributor | | TO-92 | Tape and Reel | CHINA | EAR99 | NEC | -20 | 70 | |||||||||||||||||||||||||||||||||
TL1431ACZ-AP | Active | 0.198 / 1k | Available at distributors Distributor availability of TL1431ACZ-AP
Distributor reported inventory date: | | | | Buy from Distributor | | TO-92 | Ammopack | CHINA | EAR99 | NEC | -20 | 70 | |||||||||||||||||||||||||||||||||
TL1431ACDT | Active | 0.183 / 1k | Available at 3 distributors Distributor availability of TL1431ACDT
Distributor reported inventory date: 3/15/2025 | | | | Buy from Distributor | | SO-8 | Tape and Reel | MOROCCO | EAR99 | NEC | -20 | 70 | |||||||||||||||||||||||||||||||||
TL1431IDT | Active | 0.175 / 1k | Available at 5 distributors Distributor availability of TL1431IDT
Distributor reported inventory date: 3/15/2025 | | | | Buy from Distributor | | SO-8 | Tape and Reel | MOROCCO | EAR99 | NEC | -40 | 105 | |||||||||||||||||||||||||||||||||
TL1431CDT | Active | 0.1519 / 1k | Available at 4 distributors Distributor availability of TL1431CDT
Distributor reported inventory date: 3/15/2025 | | | | Buy from Distributor | | SO-8 | Tape and Reel | MOROCCO | EAR99 | NEC | -20 | 70 | |||||||||||||||||||||||||||||||||
TL1431AIDT | Active | 0.201 / 1k | Available at 3 distributors Distributor availability of TL1431AIDT
Distributor reported inventory date: 3/15/2025 | | | | Buy from Distributor | | SO-8 | Tape and Reel | MOROCCO | EAR99 | NEC | -40 | 105 | |||||||||||||||||||||||||||||||||
TL1431CCT | Active | 0.1519 / 1k | Available at distributors Distributor availability of TL1431CCT
Distributor reported inventory date: | | | | Buy from Distributor | | SOT323-6L | Tape and Reel | MALAYSIA | EAR99 | NEC | -20 | 70 | |||||||||||||||||||||||||||||||||
TL1431CZ-AP | Active | 0.1519 / 1k | Available at 1 distributors Distributor availability of TL1431CZ-AP
Distributor reported inventory date: 3/15/2025 | | | | Buy from Distributor | | TO-92 | Ammopack | CHINA | EAR99 | NEC | -20 | 70 | |||||||||||||||||||||||||||||||||
TL1431AIZT | Active | 0.201 / 1k | Available at 2 distributors Distributor availability of TL1431AIZT
Distributor reported inventory date: 3/15/2025 | | | | Buy from Distributor | | TO-92 | Tape and Reel | CHINA | EAR99 | NEC | -40 | 105 | |||||||||||||||||||||||||||||||||
TL1431ACL3T | Active | 0.195 / 1k | Available at 2 distributors Distributor availability of TL1431ACL3T
Distributor reported inventory date: 3/15/2025 | | | | Buy from Distributor | | SOT23 | Tape and Reel | MALAYSIA | EAR99 | NEC | -20 | 70 | |||||||||||||||||||||||||||||||||
TL1431ACL5T | Active | 0.195 / 1k | Available at 2 distributors Distributor availability of TL1431ACL5T
Distributor reported inventory date: 3/15/2025 | | | | Buy from Distributor | | SOT23-5L | Tape and Reel | MALAYSIA | EAR99 | NEC | -20 | 70 | |||||||||||||||||||||||||||||||||
TL1431IZT | Active | 0.3388 / 1k | Available at 1 distributors Distributor availability of TL1431IZT
Distributor reported inventory date: 3/15/2025 | | | | Buy from Distributor | | TO-92 | Tape and Reel | CHINA | EAR99 | NEC | -40 | 105 |
TL1431ACZ Active
Part Number:
TL1431ACZ
Operating Temperature (°C)
Min:
-20
Max:
70
Farnell Element14
Stock
2346Min.Order
1MOUSER
Stock
5601Min.Order
1DIGIKEY
Stock
4091Min.Order
1Newark Element14
Stock
2827Min.Order
0Distributor reported inventory date: 3/15/2025
Stock
Min.Order
TL1431IZ Active
Part Number:
TL1431IZ
Operating Temperature (°C)
Min:
-40
Max:
105
Farnell Element14
Stock
1581Min.Order
1MOUSER
Stock
422Min.Order
1DIGIKEY
Stock
1084Min.Order
1Distributor reported inventory date: 3/15/2025
Stock
Min.Order
TL1431ACZT Active
Part Number:
TL1431ACZT
Operating Temperature (°C)
Min:
-20
Max:
70
Farnell Element14
Stock
4134Min.Order
1MOUSER
Stock
2832Min.Order
1DIGIKEY
Stock
3327Min.Order
1Distributor reported inventory date: 3/15/2025
Stock
Min.Order
TL1431AIZ-AP Active
Part Number:
TL1431AIZ-AP
Operating Temperature (°C)
Min:
-40
Max:
105
Distributor reported inventory date:
Stock
Min.Order
TL1431IYDT Active
Part Number:
TL1431IYDT
Operating Temperature (°C)
Min:
-40
Max:
105
MOUSER
Stock
3532Min.Order
1DIGIKEY
Stock
3738Min.Order
1Distributor reported inventory date: 3/15/2025
Stock
Min.Order
TL1431IZ-AP Active
Part Number:
TL1431IZ-AP
Operating Temperature (°C)
Min:
-40
Max:
105
DIGIKEY
Stock
3679Min.Order
1Distributor reported inventory date: 3/15/2025
Stock
Min.Order
TL1431ACCT Active
Part Number:
TL1431ACCT
Operating Temperature (°C)
Min:
-20
Max:
70
Distributor reported inventory date:
Stock
Min.Order
TL1431AIYDT Active
Part Number:
TL1431AIYDT
Operating Temperature (°C)
Min:
-40
Max:
105
MOUSER
Stock
12645Min.Order
1DIGIKEY
Stock
2750Min.Order
1Distributor reported inventory date: 3/15/2025
Stock
Min.Order
TL1431CL5T Active
Part Number:
TL1431CL5T
Operating Temperature (°C)
Min:
-20
Max:
70
MOUSER
Stock
7418Min.Order
1DIGIKEY
Stock
5900Min.Order
1Distributor reported inventory date: 3/15/2025
Stock
Min.Order
TL1431CL3T Active
Part Number:
TL1431CL3T
Operating Temperature (°C)
Min:
-20
Max:
70
MOUSER
Stock
5187Min.Order
1DIGIKEY
Stock
6000Min.Order
1Distributor reported inventory date: 3/15/2025
Stock
Min.Order
TL1431CZT Active
Part Number:
TL1431CZT
Operating Temperature (°C)
Min:
-20
Max:
70
MOUSER
Stock
3915Min.Order
1DIGIKEY
Stock
6218Min.Order
1Distributor reported inventory date: 3/15/2025
Stock
Min.Order
TL1431ACZ-AP Active
Part Number:
TL1431ACZ-AP
Operating Temperature (°C)
Min:
-20
Max:
70
Distributor reported inventory date:
Stock
Min.Order
TL1431ACDT Active
Part Number:
TL1431ACDT
Operating Temperature (°C)
Min:
-20
Max:
70
Farnell Element14
Stock
10465Min.Order
1MOUSER
Stock
32297Min.Order
1DIGIKEY
Stock
5609Min.Order
1Distributor reported inventory date: 3/15/2025
Stock
Min.Order
TL1431IDT Active
Part Number:
TL1431IDT
Operating Temperature (°C)
Min:
-40
Max:
105
Farnell Element14
Stock
3844Min.Order
1MOUSER
Stock
23789Min.Order
1AVNET
Stock
80000Min.Order
0DIGIKEY
Stock
32197Min.Order
1Newark Element14
Stock
100Min.Order
0Distributor reported inventory date: 3/15/2025
Stock
Min.Order
TL1431CDT Active
Part Number:
TL1431CDT
Operating Temperature (°C)
Min:
-20
Max:
70
Farnell Element14
Stock
3770Min.Order
1ANGLIA Live
Stock
2500Min.Order
2500MOUSER
Stock
5064Min.Order
1DIGIKEY
Stock
7224Min.Order
1Distributor reported inventory date: 3/15/2025
Stock
Min.Order
TL1431AIDT Active
Part Number:
TL1431AIDT
Operating Temperature (°C)
Min:
-40
Max:
105
Farnell Element14
Stock
1035Min.Order
1MOUSER
Stock
7414Min.Order
1DIGIKEY
Stock
9343Min.Order
1Distributor reported inventory date: 3/15/2025
Stock
Min.Order
TL1431CCT Active
Part Number:
TL1431CCT
Operating Temperature (°C)
Min:
-20
Max:
70
Distributor reported inventory date:
Stock
Min.Order
TL1431CZ-AP Active
Part Number:
TL1431CZ-AP
Operating Temperature (°C)
Min:
-20
Max:
70
DIGIKEY
Stock
3636Min.Order
1Distributor reported inventory date: 3/15/2025
Stock
Min.Order
TL1431AIZT Active
Part Number:
TL1431AIZT
Operating Temperature (°C)
Min:
-40
Max:
105
Farnell Element14
Stock
1376Min.Order
1DIGIKEY
Stock
3702Min.Order
1Distributor reported inventory date: 3/15/2025
Stock
Min.Order
TL1431ACL3T Active
Part Number:
TL1431ACL3T
Operating Temperature (°C)
Min:
-20
Max:
70
MOUSER
Stock
4106Min.Order
1DIGIKEY
Stock
3546Min.Order
1Distributor reported inventory date: 3/15/2025
Stock
Min.Order
TL1431ACL5T Active
Part Number:
TL1431ACL5T
Operating Temperature (°C)
Min:
-20
Max:
70
MOUSER
Stock
2990Min.Order
1DIGIKEY
Stock
2214Min.Order
1Distributor reported inventory date: 3/15/2025
Stock
Min.Order
TL1431IZT Active
Part Number:
TL1431IZT
Operating Temperature (°C)
Min:
-40
Max:
105
MOUSER
Stock
1326Min.Order
1Distributor reported inventory date: 3/15/2025
Stock
Min.Order
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors