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  • The TS431 is a low-voltage, three-terminal, adjustable shunt voltage reference. The output voltage can be set to any value between Vref (1.24 V) and 6 V using two external resistors. The TS431 is able to operate at a lower voltage (1.24 V) and lower cathode current than the widely-used TL431 and TL1431 shunt voltage reference. When driving an optocoupler, the TS431 is particularly suitable for regulating 3.3 V switching power supplies.

    Key Features

    • AEC-Q100 qualified (SOT23-5)
    • Low voltage operation: 1.24 to 6 V
    • 2%, 1% and 0.5% voltage precision
    • Wide operating range cathode current: 60 μA to 30 mA
    • Low output impedance: 0.2 Ω
    • Typically stable for any capacitive loads
    • ESD protection:
    • Human body model: 2 kV
      • Machine model: 200 V
    • 100 ppm/°C temperature coefficient
    • Automotive grade version available

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EDA Symbols, Footprints and 3D Models

STMicroelectronics - TS431

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Symbols

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Footprints

Footprints

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3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
TS431AILT
Active
SOT23-5L Industrial Ecopack2
TS431AIYLT
Active
SOT23-5L Automotive Ecopack2
TS431AIZ
Active
TO-92 Industrial Ecopack2
TS431AIZ-AP
Active
TO-92 Industrial Ecopack2
TS431AIZT
Active
TO-92 Industrial Ecopack2
TS431BILT
Active
SOT23-5L Industrial Ecopack2
TS431BIYLT
Active
SOT23-5L Automotive Ecopack2
TS431ILT
Active
SOT23-5L Industrial Ecopack2
TS431IYLT
Active
SOT23-5L Automotive Ecopack2
TS431IZ-AP
Active
TO-92 Industrial Ecopack2
TS431IZT
Active
TO-92 Industrial Ecopack2

TS431AILT

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

TS431AIYLT

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Automotive

RoHS Compliance Grade

Ecopack2

TS431AIZ

Package:

TO-92

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-92

Grade

Industrial

RoHS Compliance Grade

Ecopack2

TS431AIZ-AP

Package:

TO-92

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-92

Grade

Industrial

RoHS Compliance Grade

Ecopack2

TS431AIZT

Package:

TO-92

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-92

Grade

Industrial

RoHS Compliance Grade

Ecopack2

TS431BILT

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

TS431BIYLT

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Automotive

RoHS Compliance Grade

Ecopack2

TS431ILT

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

TS431IYLT

Package:

SOT23-5L

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SOT23-5L

Grade

Automotive

RoHS Compliance Grade

Ecopack2

TS431IZ-AP

Package:

TO-92

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-92

Grade

Industrial

RoHS Compliance Grade

Ecopack2

TS431IZT

Package:

TO-92

Material Declaration**:

PDF XML

Marketing Status

Active

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
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
TS431AIYLT Available at 1 distributors

Distributor availability ofTS431AIYLT

Distributor Name
Region Stock Min. Order Third party link
AVNET AMERICA 9000 0 Order Now

Distributor reported inventory date: 2020-11-24

Distributor Name

AVNET

Stock

9000

Min.Order

0

Region

AMERICA Order Now

Distributor reported inventory date: 2020-11-24

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 MALAYSIA 0.24 / 1k
TS431IZT Available at 1 distributors

Distributor availability ofTS431IZT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2417 1 Order Now

Distributor reported inventory date: 2020-11-24

Distributor Name

DIGIKEY

Stock

2417

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-24

Buy Direct
Active
EAR99 NEC Tape And Reel TO-92 -40 125 CHINA 0.155 / 1k
TS431ILT Available at 6 distributors

Distributor availability ofTS431ILT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1243 1 Order Now
RS COMPONENTS EUROPE 2960 1 Order Now
ARROW EUROPE 756000 0 Order Now
MOUSER WORLDWIDE 4217 1 Order Now
Farnell Element14 EUROPE 1744 1 Order Now
RUTRONIK EUROPE 24000 3000 Order Now

Distributor reported inventory date: 2020-11-24

Distributor Name

DIGIKEY

Stock

1243

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2960

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

756000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

4217

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1744

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

24000

Min.Order

3000

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-24

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 MALAYSIA 0.155 / 1k
TS431AIZ-AP No availability of distributors reported, please contact our sales office Buy Direct
Active
EAR99 NEC Tape And Reel TO-92 -40 125 CHINA 0.162 / 1k
TS431AILT Available at 7 distributors

Distributor availability ofTS431AILT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5571 1 Order Now
RS COMPONENTS EUROPE 10880 1 Order Now
AVNET AMERICA 21000 0 Order Now
FUTURE WORLDWIDE 6000 3000 Order Now
ARROW EUROPE 9000 0 Order Now
ARROW AMERICA 15030 1 Order Now
MOUSER WORLDWIDE 5222 1 Order Now

Distributor reported inventory date: 2020-11-24

Distributor Name

DIGIKEY

Stock

5571

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

10880

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

21000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

6000

Min.Order

3000

Region

WORLDWIDE Order Now

ARROW

Stock

9000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

15030

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

5222

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-24

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 MALAYSIA 0.162 / 1k
TS431IZ-AP No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape And Reel TO-92 -40 125 CHINA 0.155 / 1k
TS431AIZ No availability of distributors reported, please contact our sales office Buy Direct
Active
EAR99 NEC Poly Bag TO-92 -40 125 CHINA 0.162 / 1k
TS431BIYLT Available at 3 distributors

Distributor availability ofTS431BIYLT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1100 1 Order Now
MOUSER WORLDWIDE 1801 1 Order Now
Farnell Element14 EUROPE 2476 1 Order Now

Distributor reported inventory date: 2020-11-24

Distributor Name

DIGIKEY

Stock

1100

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

1801

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2476

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-24

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 MALAYSIA 0.257 / 1k
TS431BILT Available at 5 distributors

Distributor availability ofTS431BILT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5251 1 Order Now
AVNET AMERICA 3000 0 Order Now
ARROW EUROPE 3000 0 Order Now
MOUSER WORLDWIDE 5873 1 Order Now
Farnell Element14 EUROPE 1242 1 Order Now

Distributor reported inventory date: 2020-11-24

Distributor Name

DIGIKEY

Stock

5251

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

3000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

5873

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1242

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-24

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 MALAYSIA 0.161 / 1k
TS431IYLT No availability of distributors reported, please contact our sales office Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-5L -40 125 MALAYSIA 0.161 / 1k
TS431AIZT No availability of distributors reported, please contact our sales office Buy Direct
Active
EAR99 NEC Tape And Reel TO-92 -40 125 CHINA 0.162 / 1k

TS431AIYLT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.24 / 1k

Distributor availability ofTS431AIYLT

Distributor Name
Region Stock Min. Order Third party link
AVNET AMERICA 9000 0 Order Now

Distributor reported inventory date: 2020-11-24

Distributor Name

AVNET

Stock

9000

Min.Order

0

Region

AMERICA Order Now

Distributor reported inventory date: 2020-11-24

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23-5L

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.24 / 1k

Country of Origin

MALAYSIA

TS431IZT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.155 / 1k

Distributor availability ofTS431IZT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2417 1 Order Now

Distributor reported inventory date: 2020-11-24

Distributor Name

DIGIKEY

Stock

2417

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-24

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

TO-92

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.155 / 1k

Country of Origin

CHINA

TS431ILT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.155 / 1k

Distributor availability ofTS431ILT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1243 1 Order Now
RS COMPONENTS EUROPE 2960 1 Order Now
ARROW EUROPE 756000 0 Order Now
MOUSER WORLDWIDE 4217 1 Order Now
Farnell Element14 EUROPE 1744 1 Order Now
RUTRONIK EUROPE 24000 3000 Order Now

Distributor reported inventory date: 2020-11-24

Distributor Name

DIGIKEY

Stock

1243

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

2960

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

756000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

4217

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1744

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

24000

Min.Order

3000

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-24

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23-5L

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.155 / 1k

Country of Origin

MALAYSIA

TS431AIZ-AP

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.162 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

TO-92

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.162 / 1k

Country of Origin

CHINA

TS431AILT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.162 / 1k

Distributor availability ofTS431AILT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5571 1 Order Now
RS COMPONENTS EUROPE 10880 1 Order Now
AVNET AMERICA 21000 0 Order Now
FUTURE WORLDWIDE 6000 3000 Order Now
ARROW EUROPE 9000 0 Order Now
ARROW AMERICA 15030 1 Order Now
MOUSER WORLDWIDE 5222 1 Order Now

Distributor reported inventory date: 2020-11-24

Distributor Name

DIGIKEY

Stock

5571

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

10880

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

21000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

6000

Min.Order

3000

Region

WORLDWIDE Order Now

ARROW

Stock

9000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

15030

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

5222

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-24

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23-5L

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.162 / 1k

Country of Origin

MALAYSIA

TS431IZ-AP

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.155 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

TO-92

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.155 / 1k

Country of Origin

CHINA

TS431AIZ

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.162 / 1k

ECCN (EU)

NEC

Packing Type

Poly Bag

Package

TO-92

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.162 / 1k

Country of Origin

CHINA

TS431BIYLT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.257 / 1k

Distributor availability ofTS431BIYLT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1100 1 Order Now
MOUSER WORLDWIDE 1801 1 Order Now
Farnell Element14 EUROPE 2476 1 Order Now

Distributor reported inventory date: 2020-11-24

Distributor Name

DIGIKEY

Stock

1100

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

1801

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2476

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-24

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23-5L

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.257 / 1k

Country of Origin

MALAYSIA

TS431BILT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.161 / 1k

Distributor availability ofTS431BILT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5251 1 Order Now
AVNET AMERICA 3000 0 Order Now
ARROW EUROPE 3000 0 Order Now
MOUSER WORLDWIDE 5873 1 Order Now
Farnell Element14 EUROPE 1242 1 Order Now

Distributor reported inventory date: 2020-11-24

Distributor Name

DIGIKEY

Stock

5251

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

3000

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

3000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

5873

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1242

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-24

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23-5L

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.161 / 1k

Country of Origin

MALAYSIA

TS431IYLT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.161 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23-5L

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.161 / 1k

Country of Origin

MALAYSIA

TS431AIZT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.162 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

TO-92

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

0.162 / 1k

Country of Origin

CHINA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors