STMicroelectronics SM5T39A Transil™ TVS Diode

The SM5T39A is a robust Transil™ TVS (Transient Voltage Suppression) diode designed by STMicroelectronics to provide high surge protection in a compact package. This device is specifically engineered to protect sensitive electronic equipment against voltage transients induced by both system level and external events, such as lightning, load switch, and the inductive effects of motor shutdowns.

Key Features

• Stand-off Voltage: The SM5T39A has a stand-off voltage of 39V, making it suitable for a variety of applications that require this level of voltage protection.
• Peak Pulse Power: It can handle a peak pulse power of 400W (10/1000µs surge), providing robust protection against high energy transients.
• Low Clamping Voltage: The low clamping voltage ensures that the protected component sees a voltage well below its maximum rated voltage, even during surge events.
• Fast Response Time: The device reacts quickly to surge events, ensuring that the sensitive components are protected without delay.
• Unidirectional Functionality: As a unidirectional TVS diode, the SM5T39A is ideal for DC applications where the polarity is fixed.
• Package: It comes in a compact DO-214AA (SMB) surface-mount package, which is well-suited for high-density board designs.

Applications

The SM5T39A is versatile and can be used in a variety of applications, including:

• Power supply protection
• Industrial systems
• Telecommunication devices
• Computer interfaces
• Consumer electronics

Quality and Reliability

STMicroelectronics is known for its commitment to quality and reliability, and the SM5T39A is no exception. It is manufactured to meet stringent standards, ensuring reliable performance even in the most demanding environments. By choosing the SM5T39A, designers can be confident that they are using a high-quality component that will enhance the durability and longevity of their electronic products.