Product overview
Description
The SM50TY series are designed to protect sensitive automotive circuits against surges defined in ISO 7637-2 and against electrostatic discharges according to ISO 10605.
SM50TY is suitable for e-breaker and help to comply with ISO 16750.
The Planar technology makes it compatible with high-end circuits where low leakage current and high junction temperature are required to provide long term reliability and stability.
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All features
- AEC-Q101 qualified
- Peak pulse power:
- 5000 W (10/1000 μs)
- up to 48 kW (8/20 μs)
- Stand-off voltage range from 5 V to 100 V
- Unidirectional and bidirectional types
- Low leakage current: 0.2 µA at 25 °C
- Operating Tj max: 175 °C
- JEDEC registered package outline
- Lead finishing: matte tin plating
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
Rectifier Diodes Simulator
• Select ratings and application waveforms
• Estimate power losses
• 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
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
TVS Simulator
• Specify system ratings and surge waveform
• Search and sort suitable devices
All resources
| Resource title | Version | Latest update |
|---|
Product Specifications (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 2.0 | 06 Nov 2023 | 06 Nov 2023 |
Application Notes (5 of 11)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 2.2 | 04 Oct 2021 | 04 Oct 2021 | ||
| 1.0 | 07 Jun 2023 | 07 Jun 2023 | ||
| 2.0 | 17 Nov 2023 | 17 Nov 2023 | ||
| 2.0 | 12 Oct 2023 | 12 Oct 2023 | ||
| 1.1 | 18 Feb 2022 | 18 Feb 2022 | ||
| 2.2 | 04 Oct 2021 | 04 Oct 2021 | ||
| 2.2 | 04 Oct 2021 | 04 Oct 2021 | ||
| 2.1 | 04 Oct 2021 | 04 Oct 2021 | ||
| 6.0 | 31 Oct 2024 | 31 Oct 2024 | ||
| 2.1 | 18 Feb 2022 | 18 Feb 2022 | ||
| 5.1 | 18 Feb 2022 | 18 Feb 2022 |
Technical Notes & Articles (2)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 3.0 | 01 Mar 2022 | 01 Mar 2022 | ||
| 2.0 | 19 Sep 2024 | 19 Sep 2024 |
Flyers (3)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 1.0 | 29 Apr 2022 | 29 Apr 2022 | ||
| 1.0 | 13 Mar 2025 | 13 Mar 2025 | ||
| 1.0 | 18 Sep 2023 | 18 Sep 2023 |
EDA Symbols, Footprints and 3D Models
STMicroelectronics - SM50T33AY
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 (4)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| ZIP | 1.2 | 15 Jun 2023 | 15 Jun 2023 | |
| ZIP | 1.2 | 12 Jun 2023 | 12 Jun 2023 | |
| ZIP | 1.1 | 06 Oct 2023 | 06 Oct 2023 | |
| ZIP | 1.0 | 10 Oct 2023 | 10 Oct 2023 |
CAD Symbol & Footprint models (2)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| ZIP | 1.0 | 05 Dec 2022 | 05 Dec 2022 | |
| ZIP | 1.0 | 05 Dec 2022 | 05 Dec 2022 |
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| SM50T33AY | Active | SMC | Automotive | Ecopack2 | |
SM50T33AY
Package:
SMCMaterial Declaration**:
(**) 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$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | VRM (V) (max) | Operating Junction Temperature (°C) (min) | Operating Junction Temperature (°C) (max) | Directionality | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SM50T33AY | Active | 0.873 / 150 | 2 distributors | SMC | Tape and Reel | CHINA | EAR99 | NEC | 28 | -55 | 175 | Uni-Directional |
SM50T33AY Active
Budgetary Price (US$)*/Qty:
0.873 / 150
Package:
SMC
Packing Type:
Tape and Reel
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC
Don't show this again
(*) 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