Introducing the SM4T18AY Transil™ Diode from STMicroelectronics

The SM4T18AY is a state-of-the-art transient voltage suppression (TVS) diode designed by STMicroelectronics, a leader in semiconductor solutions. This robust device is engineered to protect sensitive electronic equipment from voltage transients induced by system inductance and lightning. With its compact footprint and powerful performance, the SM4T18AY is an ideal choice for safeguarding a wide range of applications.

Key Features

• Stand-off voltage: The SM4T18AY offers a stand-off voltage of 18V, providing a reliable barrier against overvoltage conditions until the transient voltage reaches the breakdown threshold.
• Peak pulse power: With an impressive peak pulse power dissipation of 400W (10/1000µs), this diode can easily handle significant power surges, ensuring the protection of downstream components.
• Low clamping voltage: The low clamping voltage of the SM4T18AY minimizes the stress on protected components during transient events, which is critical for maintaining the longevity and reliability of the entire system.
• Junction temperature: The device operates within a wide junction temperature range, ensuring reliable performance under varying environmental conditions.

Applications

The SM4T18AY is versatile and can be used in a variety of applications, including:

• Power supply protection
• Industrial systems
• Telecommunications equipment
• Consumer electronics
• Automotive electronics

Quality and Reliability

STMicroelectronics is committed to delivering high-quality products. The SM4T18AY is no exception, as it is manufactured with rigorous standards, ensuring both quality and reliability. This TVS diode is also RoHS compliant, meeting the requirements for environmental protection and safety.

Package Details

The SM4T18AY comes in a small and convenient SOD-123T package, which is ideal for space-constrained applications. Its surface-mount design allows for efficient assembly and integration into a variety of circuit boards.

With its robust protection features and compact design, the SM4T18AY from STMicroelectronics is an excellent choice for engineers looking to enhance the durability and reliability of their electronic systems.