STMicroelectronics

SM30T39CAY

SM30T39CAY Description

The SM30T39CAY is a high-performance TVS (Transient Voltage Suppressor) diode designed and manufactured by STMicroelectronics. This device is part of the SM30TY, TRANSIL™ series and is specifically tailored for automotive applications. It is a unidirectional, surface-mount Zener diode with a peak pulse power rating of 3000W (3kW) and a peak pulse current of 56.3A (10/1000µs). The SM30T39CAY is designed to protect sensitive electronic circuits from voltage transients and electrostatic discharges.

SM30T39CAY Features

• Voltage Ratings: The SM30T39CAY boasts a reverse standoff voltage of 33V and a maximum clamping voltage of 53.3V at the peak pulse current. This ensures efficient voltage protection without affecting the performance of the connected circuits.

• Peak Pulse Power: With a peak pulse power of 3000W, the SM30T39CAY can handle high-energy transients, making it suitable for applications with demanding power requirements.

• Mounting Type: The device is designed for surface mount applications, allowing for compact and efficient integration into electronic systems.

• Package: The SM30T39CAY is available in an SMC package, which is ideal for high-density packaging and automated assembly processes.

• Compliance: This TVS diode is compliant with the REACH regulation and is classified as REACH unaffected. It also meets the RoHS3 compliance standards, ensuring environmental safety and sustainability.

• Moisture Sensitivity Level (MSL): The SM30T39CAY has an MSL of 1, indicating that it can be stored and handled without any special precautions regarding moisture exposure.

SM30T39CAY Applications

The SM30T39CAY is ideal for a wide range of automotive applications where high voltage protection is required. Some specific use cases include:

• Infotainment Systems: Protecting the electronic control units and displays from voltage spikes and transients.

• Powertrain Control Modules: Ensuring the reliability and longevity of powertrain control systems by safeguarding them from voltage fluctuations.

• Sensors and Actuators: Providing robust protection for various sensors and actuators in the vehicle, such as those used in engine management, braking, and suspension systems.

• Communication Interfaces: Securing communication lines and data transmission in automotive networks, such as CAN, LIN, and FlexRay.

Conclusion of SM30T39CAY

The SM30T39CAY from STMicroelectronics is a robust and reliable TVS diode designed for automotive applications. Its high peak pulse power, low clamping voltage, and surface-mount design make it an excellent choice for protecting sensitive electronic circuits from voltage transients. With its compliance to REACH and RoHS3 regulations, the SM30T39CAY is not only a high-performance solution but also an environmentally responsible choice. Its versatility in applications, from infotainment systems to powertrain control modules, makes it an essential component in modern automotive electronics.