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  • Single chip Schottky rectifiers suited to Switched Mode Power Supplies and high frequency DC to DC converters.

    Packaged in SMB, and low profile SMB, this device is especially intended for surface mounting and used in low voltage, high frequency inverters, free wheeling and polarity protection applications.

    Key Features

    • Very small conduction losses
    • Low forward voltage drop
    • Negligible switching losses
    • Avalanche capability specified
    • Surface mount miniature package

Recommended for you

Related Applications

Home and Professional Appliances

Mobile Applications

    • Part Number

      Diode product finder application for Android and iOS

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS2146
      40 V, 2 A low drop power Schottky rectifier
      6.0
      385.88 KB
      PDF
      DS2146

      40 V, 2 A low drop power Schottky rectifier

    • Description Version Size Action
      AN1768
      ADMISSIBLE AVALANCHE POWER OF SCHOTTKY DIODES
      1.1
      46.82 KB
      PDF
      AN2025
      CONVERTER IMPROVEMENT USING SCHOTTKY RECTIFIER AVALANCHE SPECIFICATION
      1.1
      147.59 KB
      PDF
      AN604
      Calculation of conduction losses in a power rectifier
      3.2
      137.74 KB
      PDF
      AN4021
      Calculation of reverse losses in a power diode
      1.0
      120.47 KB
      PDF
      AN3432
      How to choose a bypass diode for silicon panel junction box
      1.0
      290.27 KB
      PDF
      AN836
      LOW FORWARD VOLTAGE SCHOTTKY DIODE
      2.1
      51.89 KB
      PDF
      AN1453
      NEW FAMILY OF 150V POWER SCHOTTKY
      1.1
      131.48 KB
      PDF
      AN5046
      Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages
      4.0
      4.82 MB
      PDF
      AN3361
      Schottky diode avalanche performance in automotive applications
      1.0
      136.54 KB
      PDF
      AN1542
      THE THERMAL RUNAWAY LAW IN SCHOTTKY USED IN OR-ING APPLICATION
      1.1
      57.47 KB
      PDF
      AN869
      Tj max limit of Schottky diodes
      2.2
      60.9 KB
      PDF
      AN1768

      ADMISSIBLE AVALANCHE POWER OF SCHOTTKY DIODES

      AN2025

      CONVERTER IMPROVEMENT USING SCHOTTKY RECTIFIER AVALANCHE SPECIFICATION

      AN604

      Calculation of conduction losses in a power rectifier

      AN4021

      Calculation of reverse losses in a power diode

      AN3432

      How to choose a bypass diode for silicon panel junction box

      AN836

      LOW FORWARD VOLTAGE SCHOTTKY DIODE

      AN1453

      NEW FAMILY OF 150V POWER SCHOTTKY

      AN5046

      Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages

      AN3361

      Schottky diode avalanche performance in automotive applications

      AN1542

      THE THERMAL RUNAWAY LAW IN SCHOTTKY USED IN OR-ING APPLICATION

      AN869

      Tj max limit of Schottky diodes

    • Description Version Size Action
      TN1173
      Packing information for IPAD, protection, rectifiers, thyristors and AC Switches
      7.0
      433.12 KB
      PDF
      TN1173

      Packing information for IPAD, protection, rectifiers, thyristors and AC Switches

HW Model, CAD Libraries & SVD

    • Description Version Size Action
      Power Schottky diode PSpice models (.lib & .olb) 7.0
      188.67 KB
      ZIP

      Power Schottky diode PSpice models (.lib & .olb)

Publications and Collaterals

    • Description Version Size Action
      Field-Effect Rectifier Diodes Advantageously replace Schottky (60V and 100V) 1.0
      1.29 MB
      PDF
      PSMC flat package Schottky and Ultrafast rectifiers 1.0
      1.47 MB
      PDF
      SMA Flat and SMB Flat Diodes Powerful rectifiers packed in 1mm-thick packages 1.0
      848.27 KB
      PDF
      SOD123Flat power Schottky diodes for improved cost and space-savings 1.0
      2.03 MB
      PDF
      SOD128Flat power Schottky diodes for improved cost and space-savings 1.0
      2.18 MB
      PDF
      ST Diodes Finder : the new app for Android and iOS 2.0
      1.46 MB
      PDF

      Field-Effect Rectifier Diodes Advantageously replace Schottky (60V and 100V)

      PSMC flat package Schottky and Ultrafast rectifiers

      SMA Flat and SMB Flat Diodes Powerful rectifiers packed in 1mm-thick packages

      SOD123Flat power Schottky diodes for improved cost and space-savings

      SOD128Flat power Schottky diodes for improved cost and space-savings

      ST Diodes Finder : the new app for Android and iOS

    • Description Version Size Action
      Diodes and rectifiers selection guide 2.0
      815.09 KB
      PDF

      Diodes and rectifiers selection guide

    • Description Version Size Action
      Electric vehicle (EV) ecosystem 1.1
      1.28 MB
      PDF
      IPAD(TM) - protection and rectifiers for Computer & Peripherals applications 2.0
      1.42 MB
      PDF
      Products and solutions for solar energy 1.0
      1.29 MB
      PDF

      Electric vehicle (EV) ecosystem

      IPAD(TM) - protection and rectifiers for Computer & Peripherals applications

      Products and solutions for solar energy

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STPS2L40AF
Active
SMA Flat Industrial Ecopack2
STPS2L40AFN
Active
SMA Flat Industrial Ecopack2
STPS2L40U
Active
SMB Industrial Ecopack2
STPS2L40UF
Active
SMB Flat Industrial Ecopack2

STPS2L40AF

Package:

SMA Flat

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SMA Flat

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STPS2L40AFN

Package:

SMA Flat

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SMA Flat

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STPS2L40U

Package:

SMB

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SMB

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STPS2L40UF

Package:

SMB Flat

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SMB Flat

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
Package
Packing Type
Junction Temperature (°C) (max)
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
STPS2L40UF Available at 6 distributors

Distributor availability ofSTPS2L40UF

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5196 1 Order Now
COMPEL EUROPE 28 1 Order Now
ARROW EUROPE 25000 0 Order Now
ARROW AMERICA 375000 5000 Order Now
MOUSER WORLDWIDE 7039 1 Order Now
Farnell Element14 EUROPE 14394 1 Order Now

Distributor reported inventory date: 2020-07-07

Distributor Name

DIGIKEY

Stock

5196

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

28

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

25000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

375000

Min.Order

5000

Region

AMERICA Order Now

MOUSER

Stock

7039

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

14394

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-07

Get sample
Active
SMB Flat Tape And Reel 150 EAR99 CHINA 0.086 / 1k
STPS2L40AFN Available at 3 distributors

Distributor availability ofSTPS2L40AFN

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 9943 1 Order Now
MOUSER WORLDWIDE 9769 1 Order Now
Farnell Element14 EUROPE 100 1 Order Now

Distributor reported inventory date: 2020-07-07

Distributor Name

DIGIKEY

Stock

9943

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

9769

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

100

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-07

Get sample
Active
SMA Flat Tape And Reel - EAR99 MOROCCO 0.082 / 1k
STPS2L40U Available at 10 distributors

Distributor availability ofSTPS2L40U

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 9022 1 Order Now
COMPEL EUROPE 25896 1 Order Now
RS COMPONENTS EUROPE 6350 10 Order Now
AVNET AMERICA 15137 0 Order Now
ARROW EUROPE 346002 0 Order Now
Newark Element14 AMERICA 12 0 Order Now
ARROW AMERICA 75 1 Order Now
MOUSER WORLDWIDE 10027 1 Order Now
Farnell Element14 EUROPE 8765 1 Order Now
ANGLIA Live EUROPE 1100 100 Order Now

Distributor reported inventory date: 2020-07-07

Distributor Name

DIGIKEY

Stock

9022

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

25896

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

6350

Min.Order

10

Region

EUROPE Order Now

AVNET

Stock

15137

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

346002

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

12

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

75

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

10027

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

8765

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

1100

Min.Order

100

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-07

Get sample
Active
SMB Tape And Reel 150 EAR99 CHINA 0.082 / 1k
STPS2L40AF Available at 6 distributors

Distributor availability ofSTPS2L40AF

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4603 1 Order Now
RS COMPONENTS EUROPE 8875 1 Order Now
AVNET AMERICA 110000 0 Order Now
MOUSER WORLDWIDE 12015 1 Order Now
Farnell Element14 EUROPE 4852 1 Order Now
RUTRONIK EUROPE 10000 10000 Order Now

Distributor reported inventory date: 2020-07-07

Distributor Name

DIGIKEY

Stock

4603

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

8875

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

110000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

12015

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4852

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

10000

Min.Order

10000

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-07

Get sample
Active
SMA Flat Tape And Reel 150 EAR99 CHINA 0.082 / 1k

STPS2L40UF

Marketing Status

Active

Unit Price (US$)

0.086

Budgetary Price (US$)*/Qty

0.086 / 1k

Distributor availability ofSTPS2L40UF

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5196 1 Order Now
COMPEL EUROPE 28 1 Order Now
ARROW EUROPE 25000 0 Order Now
ARROW AMERICA 375000 5000 Order Now
MOUSER WORLDWIDE 7039 1 Order Now
Farnell Element14 EUROPE 14394 1 Order Now

Distributor reported inventory date: 2020-07-07

Distributor Name

DIGIKEY

Stock

5196

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

28

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

25000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

375000

Min.Order

5000

Region

AMERICA Order Now

MOUSER

Stock

7039

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

14394

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-07

Package

SMB Flat

Packing Type

Tape And Reel

Junction Temperature (°C) (max)

150

ECCN (US)

EAR99

Country of Origin

CHINA

STPS2L40AFN

Marketing Status

Active

Unit Price (US$)

0.082

Budgetary Price (US$)*/Qty

0.082 / 1k

Distributor availability ofSTPS2L40AFN

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 9943 1 Order Now
MOUSER WORLDWIDE 9769 1 Order Now
Farnell Element14 EUROPE 100 1 Order Now

Distributor reported inventory date: 2020-07-07

Distributor Name

DIGIKEY

Stock

9943

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

9769

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

100

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-07

Package

SMA Flat

Packing Type

Tape And Reel

Junction Temperature (°C) (max)

-

ECCN (US)

EAR99

Country of Origin

MOROCCO

STPS2L40U

Marketing Status

Active

Unit Price (US$)

0.082

Budgetary Price (US$)*/Qty

0.082 / 1k

Distributor availability ofSTPS2L40U

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 9022 1 Order Now
COMPEL EUROPE 25896 1 Order Now
RS COMPONENTS EUROPE 6350 10 Order Now
AVNET AMERICA 15137 0 Order Now
ARROW EUROPE 346002 0 Order Now
Newark Element14 AMERICA 12 0 Order Now
ARROW AMERICA 75 1 Order Now
MOUSER WORLDWIDE 10027 1 Order Now
Farnell Element14 EUROPE 8765 1 Order Now
ANGLIA Live EUROPE 1100 100 Order Now

Distributor reported inventory date: 2020-07-07

Distributor Name

DIGIKEY

Stock

9022

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

25896

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

6350

Min.Order

10

Region

EUROPE Order Now

AVNET

Stock

15137

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

346002

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

12

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

75

Min.Order

1

Region

AMERICA Order Now

MOUSER

Stock

10027

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

8765

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

1100

Min.Order

100

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-07

Package

SMB

Packing Type

Tape And Reel

Junction Temperature (°C) (max)

150

ECCN (US)

EAR99

Country of Origin

CHINA

STPS2L40AF

Marketing Status

Active

Unit Price (US$)

0.082

Budgetary Price (US$)*/Qty

0.082 / 1k

Distributor availability ofSTPS2L40AF

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4603 1 Order Now
RS COMPONENTS EUROPE 8875 1 Order Now
AVNET AMERICA 110000 0 Order Now
MOUSER WORLDWIDE 12015 1 Order Now
Farnell Element14 EUROPE 4852 1 Order Now
RUTRONIK EUROPE 10000 10000 Order Now

Distributor reported inventory date: 2020-07-07

Distributor Name

DIGIKEY

Stock

4603

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

8875

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

110000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

12015

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4852

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

10000

Min.Order

10000

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-07

Package

SMA Flat

Packing Type

Tape And Reel

Junction Temperature (°C) (max)

150

ECCN (US)

EAR99

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