SM6T250CAY - Automotive 600 W, 213 V TVS in SMB - STMicroelectronics

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Product overview

Description

The SM6T250CAY Transil series has been designed to protect sensitive automotive circuits against surges defined in ISO 7637-2 and against electrostatic discharges according to IEC 61000-4-2 and ISO 10605.

The planar technology makes this device compatible with high-end circuits where low leakage current and high junction temperature are required to provide reliability and stability over time. SM6T250CAY is packaged in SMB (SMB footprint in accordance with IPC 7531 standard).

All features
Peak pulse power:

600 W (10/1000 μs)

4 kW (8/20 μs)

Stand-off voltage 213 V

Bidirectional type

Low leakage current:

200 nA at 25 °C

1 μA at 85 °C

Operating T_{j max}: 175 °C

High power capability at T_{j max}

JEDEC registered package outline

Resin meets UL 94, V0

AEC-Q101 qualified

Complies with the following standards

IEC 61000-4-2 exceeds level 4:
30 kV (air discharge)
30 kV (contact discharge)

ISO 10605, C = 330 pF, R = 330 Ω exceeds level 4:
30 kV (air discharge)
30 kV (contact discharge)

ISO 7637-2
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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.

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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

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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

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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

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.

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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.

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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

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EDA Symbols, Footprints and 3D Models

All resources

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	Resource title	Version	Latest update

SPICE models (5)

	Resource title	Version	Latest update
ZIP	SM6T250CAY model (.lib) and symbols (.olb)	1.0	28 Apr 2020	28 Apr 2020 SM6T250CAY model (.lib) and symbols (.olb) 1.0
ZIP	sm6ty-series Electro-thermal PSpice model (.lib) and symbols (.olb) for Orcad	2.0	13 May 2025	13 May 2025 sm6ty-series Electro-thermal PSpice model (.lib) and symbols (.olb) for Orcad 2.0
ZIP	sm6ty-series Electro-thermal model (.lib) for LTspice	2.0	13 May 2025	13 May 2025 sm6ty-series Electro-thermal model (.lib) for LTspice 2.0
ZIP	sm6ty-series Electro-thermal model (.lib) for SIMetrix and eDSim	3.0	14 May 2025	14 May 2025 sm6ty-series Electro-thermal model (.lib) for SIMetrix and eDSim 3.0
ZIP	sm6ty-series PSpice model (.lib) and symbols (.olb)	1.3	10 May 2021	10 May 2021 sm6ty-series PSpice model (.lib) and symbols (.olb) 1.3

CAD Symbol & Footprint models (2)

	Resource title	Version	Latest update
ZIP	sm6txxcay Altium Symbol and Footprint files	1.0	15 May 2020	15 May 2020 sm6txxcay Altium Symbol and Footprint files 1.0
ZIP	sm6txxcay Orcad Symbol and Footprint files	1.0	30 Aug 2021	30 Aug 2021 sm6txxcay Orcad Symbol and Footprint files 1.0

Quality and Reliability

Part Number	Marketing Status	Package	Grade	RoHS Compliance Grade	Longevity Commitment	Longevity Starting Date	Material Declaration**
SM6T250CAY	Active	SMB	Automotive	Ecopack2	-	-	PDF XML

SM6T250CAY

Package:

SMB

Material 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.

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V_RM (V) (max)

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Operating Junction Temperature (°C) (max)

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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

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