Product Overview: SM15T18ATR by STMicroelectronics

The SM15T18ATR is a robust transient voltage suppression (TVS) diode designed by STMicroelectronics, a global semiconductor leader known for its state-of-the-art electronic components. This TVS diode is specifically engineered to protect sensitive electronic equipment from voltage transients induced by system inductance, lightning, and other transient voltage events.

Key Features

• Stand-off Voltage: The SM15T18ATR offers a stand-off voltage of 15.3V, which is the maximum voltage that can be applied over the long term without triggering the protective mechanism of the diode.
• Peak Pulse Power: It is capable of handling a peak pulse power of 1500W (10/1000μs), ensuring protection against high energy transients.
• Breakdown Voltage: The breakdown voltage ranges from 17.1V to 18.9V, which is the point at which the diode starts to conduct electricity to ground, protecting the connected circuitry.
• Low Clamping Voltage: With a low clamping voltage, this TVS diode effectively limits the voltage spikes to a safe level that the circuit can tolerate without sustaining damage.
• High Surge Capability: The SM15T18ATR is designed to withstand high surge events, making it suitable for use in environments prone to severe transient overvoltages.
• Package: This component comes in a DO-214AB (SMC) package, which is known for its compact size and reliability in automated manufacturing processes.
• Automotive Qualification Standard: It is AEC-Q101 qualified, indicating its suitability for automotive applications where reliability and performance under harsh conditions are crucial.

Applications

The SM15T18ATR is ideal for protecting voltage sensitive devices in a variety of applications, including:

• Automotive control units
• Power supply lines
• Industrial systems
• Telecommunication devices
• Consumer electronics

With its robust design and high surge capability, the SM15T18ATR from STMicroelectronics is an excellent choice for designers looking to enhance the durability and reliability of their electronic systems against transient voltage events.