Product overview
Description
Single chip Schottky rectifiers suited to switched mode power supplies and high frequency DC to DC converters.
Packaged in SMA, SMA Flat Notch, SMB and SOD123Flat, the STPS1L40 is ideal for use in surface mounting and used in low voltage, high frequency inverters, free-wheeling and polarity protection applications.
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All features
- Very small conduction losses
- Negligible switching losses
- Low forward voltage drop
- Surface mount miniature packages
- Avalanche rated
- ECOPACK2 compliant
eDesignSuite
eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.
Power Management Design Center
Thermal-electrical Simulators for Components
Signal Conditioning Design Tool
NFC/RFID Calculators
Choose design tool: 
Power Management Design Center
Power Supply Design Tool
• SMPS design, by topology, by type and by product
• PFC design with analog and digitial control
• Supports various PCB configurations
Choose type: DC/DC AC/DC Solar Battery Charger
Power Management Design Center
LED Lighting Design Tool
• Handles AC-DC and DC-DC design in common topologies
• Displays interactive and annotated schematic
• Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data
Choose type: DC/DC AC/DC
Power Management Design Center
Digital Power Workbench
• Provides a step-by-step optimized design of power section and control loop
• Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs
Power Management Design Center
Power Tree Designer
• Specify input/output power for each node in the tree
• Check for consistency
• Design each individual node
Choose design tool: 
Thermal-electrical Simulators for Components
AC Switches Simulator
• Select ratings and application waveforms
• Get junction temperature and blocking voltage graphs
• Search and sort suitable devices
Thermal-electrical Simulators for Components
STPOWER Studio
• Supports long mission profiles
• Provides power loss and temperature graphs
• Helps define heatsink thermal properties
Thermal-electrical Simulators for Components
Twister Sim
• Help select the right ViPOWER Automotive power device
• Supports load-compatibility, wiring harness optimization, fault condition impact and diagnostic analysis
• Supports various PCB configurations
Thermal-electrical Simulators for Components
TVS Simulator
• Specify system ratings and surge waveform
• Search and sort suitable devices
Thermal-electrical Simulators for Components
Estimate
• Build simple schematics and firmware inputs in minutes
• Quickly generate reliable estimates of battery life, system power consumption and bill of materials costs
Thermal-electrical Simulators for Components
PCB Thermal Simulator
• Thermal analysis of a PCB from Gerber files.
• Possibility to add heat sources, heat sinks, copper areas and thermal paths.
• Powerful server-side engine for rendering and simulation.
• Thermal results shown graphically via 2D table.
Choose design tool: 
Signal Conditioning Design Tool
Active Filters
• Handles multi-stage-designs and common topologies
• Returns circuit component values
• Provides gain, phase and group delay graphs
• Low Pass, High Pass and Band Pass
Signal Conditioning Design Tool
Comparators
• Handles most common configurations
• Returns circuit components values
• Provides I/O signal waveforms
• Inverting, Non Inverting, Window
Signal Conditioning Design Tool
Low side Current Sensing
• Returns circuit component values
• Provides current error graphs
Signal Conditioning Design Tool
High side Current Sensing
• Provides current error graphs.
• Help to select the right High side current sensing and shunt devices.
Choose design tool: 
NFC/RFID Calculators
NFC Inductance
• Input geometry and substrate properties
• Get antenna impedance
NFC/RFID Calculators
UHF Link Budget
• Enter forward and reverse link characteristics
• The tool returns link budget estimate
NFC/RFID Calculators
NFC Tuning Circuit
• Enter antenna parameter and matching target
• Select the topology of the matching network
• The tool returns component values for the desired design targets
Thermal-electrical Simulators for Components
Rectifier Diodes Simulator
• Select ratings and application waveforms
• Estimate power losses
• Search and sort suitable devices
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All tools & software
All resources
| Resource title | Version | Latest update |
|---|
Product Specifications (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 9.0 | 30 Sep 2019 | 30 Sep 2019 |
Application Notes (5 of 11)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.1 | 20 May 2024 | 20 May 2024 | ||
| 1.1 | 20 May 2024 | 20 May 2024 | ||
| 3.2 | 20 May 2024 | 20 May 2024 | ||
| 1.0 | 20 May 2024 | 20 May 2024 | ||
| 1.0 | 10 Oct 2022 | 10 Oct 2022 | ||
| 2.1 | 24 Mar 2020 | 24 Mar 2020 | ||
| 1.1 | 20 May 2024 | 20 May 2024 | ||
| 4.0 | 31 Oct 2024 | 31 Oct 2024 | ||
| 1.0 | 13 Sep 2018 | 13 Sep 2018 | ||
| 1.1 | 20 May 2024 | 20 May 2024 | ||
| 2.2 | 20 May 2024 | 20 May 2024 |
Presentations (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.2 | 20 Mar 2025 | 20 Mar 2025 |
Flyers (5 of 7)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.0 | 28 Feb 2022 | 28 Feb 2022 | ||
| 1.0 | 17 Jul 2024 | 17 Jul 2024 | ||
| 1.0 | 28 Feb 2022 | 28 Feb 2022 | ||
| 1.0 | 29 Jun 2020 | 29 Jun 2020 | ||
| 1.0 | 09 Mar 2022 | 09 Mar 2022 | ||
| 1.0 | 10 Sep 2018 | 10 Sep 2018 | ||
| 2.0 | 07 Nov 2022 | 07 Nov 2022 |
Brochures (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 2.0 | 01 Aug 2015 | 01 Aug 2015 |
EDA Symbols, Footprints and 3D Models
STMicroelectronics - STPS1L40
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
Please select one model supplier :
Symbols
Footprints
3D models
All resources
| Resource title | Version | Latest update |
|---|
SPICE models (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| ZIP | 10.0 | 05 May 2023 | 05 May 2023 |
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| STPS1L40A | Active | SMA | Industrial | Ecopack2 | |
| STPS1L40U | Active | SMB | Industrial | Ecopack2 | |
| STPS1L40ZF | Active | SOD123Flat | Industrial | 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
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| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | Junction Temperature (°C) (max) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STPS1L40ZF | Active | 0.066 / 100 | 4 distributors | SOD123Flat | Tape and Reel | MALAYSIA | EAR99 | NEC | 175 | |||||
| STPS1L40A | Active | 0.069 / 100 | 6 distributors | SMA | Tape and Reel | CHINA | EAR99 | NEC | 175 | |||||
| STPS1L40U | Active | 0.073 / 100 | 4 distributors | SMB | Tape and Reel | CHINA | EAR99 | NEC | 175 |
STPS1L40ZF Active
Budgetary Price (US$)*/Qty:
0.066 / 100
Package:
SOD123Flat
Packing Type:
Tape and Reel
Country of Origin:
MALAYSIA
ECCN (US):
EAR99
ECCN (EU):
NEC
STPS1L40A Active
Budgetary Price (US$)*/Qty:
0.069 / 100
Package:
SMA
Packing Type:
Tape and Reel
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC
STPS1L40U Active
Budgetary Price (US$)*/Qty:
0.073 / 100
Package:
SMB
Packing Type:
Tape and Reel
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC
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(*) 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